Ceramic heating sheet and heating system

Abstract

The utility model relates to the field of ceramic heating sheets, in particular to a ceramic heating sheet and a heating system, which comprise a ceramic sheet and a circuit structure arranged in the ceramic sheet, and the circuit structure comprises a heating element and a high-temperature protection unit which are integrated together; the high-temperature protection unit and the heating element are connected in series to form a heating circuit. High-temperature protection of the ceramic heating plate can be realized under the condition that an external circuit is not added.

Description

Technical Field

[0001] This utility model relates to the field of ceramic heating elements, and more specifically, to a ceramic heating element and a heating system. Background Technology

[0002] With advancements in technology and increasingly stringent performance requirements for heating elements in industrial applications, traditional metal wire or resistance heaters have gradually revealed their shortcomings in terms of heating uniformity, durability, and safety. Against this backdrop, ceramic materials, due to their superior electrical insulation properties, high-temperature resistance, and chemical stability, are considered a crucial choice for manufacturing high-performance heating elements. Ceramic heating elements, as a novel type of heating element, have been extensively researched and applied.

[0003] In existing technologies, ceramic heating elements are primarily used to provide a heat source, but they lack high-temperature protection measures, which limits their use in applications with high safety requirements. Specifically, in current ceramic heating element designs, high-temperature protection is typically achieved through additional circuitry. This external circuitry not only increases system complexity and production costs but also occupies more space. Therefore, there is an urgent need to develop a ceramic heating element with built-in high-temperature protection to better meet the needs of industrial applications. Utility Model Content

[0004] The purpose of this invention is to provide a ceramic heating element that can achieve high-temperature protection without adding external circuitry.

[0005] Another objective of this invention is to provide a heating system that can achieve high-temperature protection for ceramic heating elements without adding external circuitry.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A ceramic heating element includes the ceramic element and a circuit structure disposed inside the ceramic element, the circuit structure including a heating element and a high-temperature protection unit integrated together;

[0008] The high-temperature protection unit is connected in series with the heating element to form a heating circuit.

[0009] Furthermore, the circuit structure also includes a temperature measuring unit integrated with the heating element and the high-temperature protection unit. The temperature measuring unit is connected in parallel with the heating element and is used to monitor the temperature of the heating circuit.

[0010] Furthermore, the heating element is a heating resistance wire.

[0011] Furthermore, the high-temperature protection unit employs a high-temperature fuse.

[0012] Furthermore, the temperature measurement unit employs a temperature sampling resistor.

[0013] Furthermore, the temperature measuring unit and the heating element are embedded in the ceramic sheet, and the temperature measuring unit is in contact with the ceramic sheet.

[0014] Furthermore, a blocking part is provided between the temperature measuring unit and the high temperature protection unit.

[0015] Furthermore, the blocking part adopts a baffle.

[0016] A heating system comprising the aforementioned ceramic heating element.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By embedding a high-temperature fuse into a ceramic element and building circuitry inside the ceramic element, the high-temperature protection function of the ceramic heating element is achieved. The design of embedding a temperature sampling resistor enables high-temperature protection of the ceramic heating element without adding external circuitry, reducing the need for external circuitry and saving space and cost. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the ceramic heating element structure of this utility model;

[0021] Figure 2 This is a diagram of the internal circuit structure of the ceramic heating element of this utility model.

[0022] In the picture:

[0023] 1-Temperature sampling resistor;

[0024] 2-High-temperature fuse;

[0025] 3-Baffle;

[0026] 4- Heating resistance wire. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Example 1

[0035] This embodiment provides a ceramic heating element, including the ceramic element and a circuit structure disposed inside the ceramic element. The circuit structure includes an integrated heating element and a high-temperature protection unit.

[0036] The high-temperature protection unit is connected in series with the heating element to form a heating circuit.

[0037] In this embodiment, the heating element is a heating resistance wire 4.

[0038] The high-temperature protection unit uses a high-temperature fuse 2.

[0039] Both the heating element and the high-temperature fuse 2 are embedded in the ceramic sheet.

[0040] The heating resistance wire 4 and the high-temperature fuse 2 are connected in series. When the temperature of the ceramic heating element reaches the set limit temperature, the fuse will open and the ceramic heating element will stop heating. When its temperature drops to the recovery temperature, the fuse will close and heating will continue.

[0041] This solution embeds the high-temperature fuse 2 into the ceramic plate and builds circuitry inside the ceramic plate, thereby achieving high-temperature protection for the ceramic heating plate. The design of embedding the temperature sampling resistor 1 enables high-temperature protection for the ceramic heating plate without adding external circuitry, reducing the need for external circuitry and saving space and cost.

[0042] Example 2

[0043] With advancements in industry and technology, the demands on heating elements are increasing. Traditional metal wire or resistance heaters have limitations in terms of heating uniformity, durability, and safety, making them unsuitable for modern applications. Ceramic materials, due to their excellent electrical insulation properties, high-temperature resistance, and chemical stability, have become an ideal choice for manufacturing high-performance heating elements. However, existing ceramic heating elements have some drawbacks, such as a lack of high-temperature protection and real-time temperature monitoring, which limits their application range. Therefore, developing a ceramic heating element with high-temperature protection and real-time temperature monitoring capabilities has become an urgent need in this field.

[0044] The ceramic heating elements currently on the market mainly have the following problems:

[0045] - Single function: It only has a heating function, without high temperature protection and real-time temperature feedback.

[0046] - High cost: To achieve high-temperature protection and temperature monitoring, additional peripheral circuitry is required, which not only increases costs but also takes up more space.

[0047] - Inconvenient to integrate: Due to its large size, it is not suitable for integration into portable products.

[0048] In this regard, refer to Figure 1 and Figure 2 This embodiment provides a ceramic heating element, including the ceramic element and a circuit structure disposed inside the ceramic element. The circuit structure includes a heating element and a high-temperature protection unit integrated together.

[0049] like Figure 2 The high-temperature protection unit is connected in series with the heating element to form a heating circuit. The circuit structure also includes a temperature measuring unit integrated with the heating element and the high-temperature protection unit. The temperature measuring unit is connected in parallel with the heating element and is used to monitor the temperature of the heating circuit.

[0050] In this embodiment, the heating element is a heating resistance wire 4.

[0051] The high-temperature protection unit uses a high-temperature fuse 2.

[0052] The temperature sensing unit can use a temperature sensing wire, which is a sensor used to measure temperature. Common temperature sensing wires include thermistors and thermocouples.

[0053] Working principle of temperature sensing wire:

[0054] Thermistor: responds to temperature changes by changing its resistance value.

[0055] Thermocouple: A device that responds to temperature changes by generating a voltage change through the connection of two different metals.

[0056] Temperature sensing wires are typically used to measure ambient temperature or the surface temperature of the object being measured.

[0057] Specifically, the temperature measurement unit uses a temperature sampling resistor 1, which is a specific type of resistor whose resistance changes with temperature. Its working principle: The temperature sampling resistor 1 reflects temperature changes through changes in its resistance. Its application: The temperature sampling resistor 1 is commonly used for temperature detection, similar to a thermistor.

[0058] Both the heating element and the high-temperature fuse 2 are embedded in the ceramic sheet.

[0059] Heating resistance wire 4 and high-temperature fuse 2 are connected in series. When the temperature of the ceramic heating element reaches the set limit temperature, the high-temperature fuse 2 will open, stopping the heating of the ceramic heating element. When its temperature drops to the recovery temperature, the high-temperature fuse 2 will close, and heating will continue. Temperature sampling resistor 1 is attached to the ceramic element, and the temperature of the heating element is fed back in real time through the change of temperature sampling resistor 1.

[0060] In this embodiment, a blocking part is provided between the temperature measuring unit and the high-temperature protection unit, such as... Figure 1 As shown, the blocking part adopts a baffle 3, which separates the high-temperature fuse 2 and the temperature sampling resistor 1, thereby reducing the influence of the high-temperature fuse 2 on the temperature sampling resistor 1 and improving the measurement accuracy of the temperature sampling resistor 1.

[0061] To address the aforementioned problems in existing technologies, we have developed a novel ceramic heating element, whose main innovations include:

[0062] 1. Integrated design: The temperature sampling resistor 1 and the high-temperature fuse 2 are directly embedded inside the ceramic heating element, realizing high-temperature protection and temperature acquisition functions.

[0063] 2. Simple circuit: By connecting the heating resistance wire 4 and the high-temperature fuse 2 in series, when the temperature reaches the limit temperature, the fuse will automatically open and stop heating; when the temperature drops, the fuse will automatically close and resume heating.

[0064] 3. Precise monitoring: Temperature sampling resistor 1 is in close contact with the heating element, which can provide real-time feedback on the temperature changes of the heating element, ensuring more precise temperature control.

[0065] 4. Structural optimization: The addition of baffle 3 further improves the accuracy of temperature sampling resistor 1 and high-temperature fuse 2, while saving external circuitry and making it more convenient to use.

[0066] Compared with existing technologies, this ceramic heating element has the following advantages:

[0067] -Low cost: Reduces the need for external circuitry, lowering production costs.

[0068] - Easy to integrate: Its compact size makes it easy to integrate into a variety of portable products.

[0069] - High efficiency and safety: It achieves high temperature protection and real-time temperature monitoring, improving the safety and reliability of use.

[0070] - Easy to manufacture: Simple structure, easy to mass-produce and serialize.

[0071] Example 3

[0072] A heating system comprising a plurality of the aforementioned ceramic heating elements.

[0073] This application integrates various components by constructing a simple heating and temperature acquisition protection circuit, achieving high-temperature protection, temperature acquisition, and heating switch control. It is easy to manufacture, integrate, and mass-produce, with low cost and convenient use.

[0074] The beneficial effects of the technical solution of this utility model are:

[0075] The high-temperature fuse 2 and the temperature sampling resistor 1 are embedded in the ceramic plate, and the circuit is built inside the ceramic plate. The high-temperature fuse 2 ensures the protection of the heating circuit, and plays a role in high-temperature melting and low-temperature operation, thus realizing the high-temperature protection function of the ceramic heating plate. The temperature sampling resistor 1 is connected in parallel with the heating resistance wire 4 to measure the temperature of the heating circuit and the temperature of the ceramic heating plate. The design of embedding the high-temperature fuse 2 and the temperature sampling resistor 1 can realize the high-temperature protection and temperature monitoring of the ceramic heating plate without adding external circuits, reducing the construction of external circuits and saving space and cost.

[0076] Specifically as follows:

[0077] 1. Embedded design: The temperature sampling resistor 1 and the high-temperature fuse 2 are embedded inside the ceramic heating element, reducing external circuitry, saving space and cost, and improving accuracy.

[0078] 2. Simple circuit: By connecting the heating resistance wire 4 and the high-temperature fuse 2 in series, high-temperature protection and temperature monitoring functions are achieved.

[0079] 3. Structural optimization: Add baffle 3 to improve the accuracy of temperature sampling resistor 1 and high-temperature fuse 2.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0081] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ceramic heating sheet, characterized by, The ceramic heating sheet comprises a ceramic sheet and a circuit structure arranged inside the ceramic sheet, wherein the circuit structure comprises a heating element and a high-temperature protection unit integrated together; The high-temperature protection unit is connected in series with the heating element to form a heating circuit.

2. The ceramic heating sheet according to claim 1, characterized by The circuit structure further comprises a temperature measuring unit integrated with the heating element and the high-temperature protection unit, wherein the temperature measuring unit is connected in parallel with the heating element and is used for monitoring the temperature of the heating circuit.

3. The ceramic heater blade of claim 1, wherein, The heating element adopts a heating resistance wire (4).

4. The ceramic heater blade of claim 1, wherein, The high-temperature protection unit adopts a high-temperature fuse (2).

5. The ceramic heating sheet according to claim 2, wherein The temperature measuring unit adopts a temperature sampling resistance (1).

6. The ceramic heater blade of claim 2, wherein, The temperature measuring unit and the heating element are embedded in the ceramic sheet, and the temperature measuring unit is attached to the ceramic sheet.

7. The ceramic heater blade of claim 2, wherein, A blocking part is arranged between the temperature measuring unit and the high-temperature protection unit.

8. The ceramic heating sheet according to claim 7, characterized by The blocking part adopts a baffle (3).

9. A heating system, characterized by The ceramic heating sheet comprises a ceramic sheet and a circuit structure arranged inside the ceramic sheet, wherein the circuit structure comprises a heating element and a high-temperature protection unit integrated together; The high-temperature protection unit is connected in series with the heating element to form a heating circuit. The circuit structure further comprises a temperature measuring unit integrated with the heating element and the high-temperature protection unit, wherein the temperature measuring unit is connected in parallel with the heating element and is used for monitoring the temperature of the heating circuit. The heating element adopts a heating resistance wire (4). The high-temperature protection unit adopts a high-temperature fuse (2). The temperature measuring unit adopts a temperature sampling resistance (1). The temperature measuring unit and the heating element are embedded in the ceramic sheet, and the temperature measuring unit is attached to the ceramic sheet. A blocking part is arranged between the temperature measuring unit and the high-temperature protection unit. The blocking part adopts a baffle (3). The ceramic heating sheet comprises a ceramic sheet and a circuit structure arranged inside the ceramic sheet, wherein the circuit structure comprises a heating element and a high-temperature protection unit integrated together; The high-temperature protection unit is connected in series with the heating element to form a heating circuit. The circuit structure further comprises a temperature measuring unit integrated with the heating element and the high-temperature protection unit, wherein the temperature measuring unit is connected in parallel with the heating element and is used for monitoring the temperature of the heating circuit. The heating element adopts a heating resistance wire (4). The high-temperature protection unit adopts a high-temperature fuse (2). The temperature measuring unit adopts a temperature sampling resistance (1). The temperature measuring unit and the heating element are embedded in the ceramic sheet, and the temperature measuring unit is

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