A ceramic heater

Abstract

The invention discloses a ceramic heating plate which is of a plate-shaped structure composed of an upper ceramic plate 1, a lower ceramic plate 2, a plurality of heating resistors 3 and leads 4. The number of the heating resistors 3 is multiple, and the heating resistors 3 are all placed between the upper ceramic plate 1 and the lower ceramic plate 2 to form the ceramic heating plate. The heating resistors are in parallel connection and are led out by a set of common leads 4 in an electrical connecting mode. The ceramic heating plate formed by the fact that the heating resistors 3 are in parallel connection can achieve large area heating, the heating resistors 3 are arrayed compactly, blind heating areas are eliminated, heating is even, one ceramic heating plate is provided with the multiple heating resistors 3, however, only one pair of leads is needed, and electrical connection is simple, safe and reliable.

Description

technical field [0001] The invention relates to a ceramic heating sheet, which belongs to the technical field of electric heating. Background technique [0002] Ceramic heating element is a new generation of high-efficiency, green and environmentally friendly heating device, which is widely used in various heater products such as industrial and agricultural technology, communication, medical treatment, and daily life. It is used to provide heat sources for heating components or directly as heating components. . At present, the ceramic heating sheet in the domestic and foreign markets is a flat structure composed of a ceramic sheet, a heating resistor, and a lead wire. The heating resistor is located between two ceramic sheets, and the lead wire is electrically connected to the heating resistor. Limited by the heating power, each heating The heating area of ​​the chip is small, and the heating area is relatively concentrated. It is suitable for heating parts with a small are...

AI Technical Summary

Problems solved by technology

At present, the ceramic heating sheet in the domestic and foreign markets is a flat structure composed of a ceramic sheet, a heating resistor, and a lead wire. The heating resistor is located between two ceramic sheets, and the lead wire is electrically connected to the heating resistor. Limited by the heating power, each heating The heating area of ​​the chip is small, and the heating area is relatively concentrated. It is suitable for heating parts with a small area of ​​heating. When the heating elements are combined, there is a heating blind area between adjacent ceramic heating elements, resulting in uneven heating, and each ceramic heating element needs a set of lead wires, and a combination of multiple ceramic heating elements requires multiple sets of lead wires, resulting in a large number of leads. The connection is more complicated

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