Thermo-sensitive ceramic heater

Abstract

The invention discloses a thermo-sensitive ceramic heater. The thermo-sensitive ceramic heater comprises a heating part, a connecting wire harness and a mounting bracket, wherein the heating part consists of a heating element and a radiator; the heating element comprises a heat conduction tube and a heating core; the heating core comprises a heating sheet, an electrode sheet and insulating paper; the connection wire harness comprises a connecting sheet; at least two semi-circular grooves are formed in the outer side surface of the heat conduction tube; the width of the heat conduction face of the heat conduction tube is 0-15 mm larger than that of the radiator. Through the design that the connecting sheet is added to the electrode sheet, the effects of reliable contact between the heater and a connecting point of the connection wire harness, stable connection and convenient manufacture are achieved. The structure that the width of the heat conduction tube is not equal to that of the radiator is adopted, so that combination between the radiator and the heat conduction tube is more stable, and heat dissipation is more uniform. Meanwhile, as the semi-circular grooves are formed in the side surface of the heat conduction tube, damage of the inner wall of the heat conduction tube to the insulating paper of the heating core is less, the heating core in the heat conduction tube is combined more tightly, and the security and the heat efficiency are greatly improved.

Description

technical field [0001] The invention relates to a heater, in particular to a heat-sensitive ceramic heater. Background technique [0002] The existing technologies mainly contain the following types: [0003] A PTC liquid electric heater (publication number CN2612898Y), the power line is connected to the electrode and supplies power to it, and the power line is connected to the outside through the power line inlet of the metal shell. [0004] With this technical scheme, since the power line is directly connected to the electrode, the contact resistance is large, and the connection point of the power line is likely to fall off under the action of an external force. [0005] A PTC-heated instant electric water heater (publication number CN2742335Y), in which the wires on the electric control device are connected to the inserts on the heating device. [0006] With this technical solution, at least the connection between the wire and the PTC electrode sheet needs to be complet...

AI Technical Summary

Problems solved by technology

[0016] Purpose of the invention: The technical problem solved by the present invention is that the existing connection mode of the power cord and the electrode sheet is easy to cause the connection point of the power cord to fall off under the action of external force and the consistency problem of the manufacturing process, which solves the problem of crimping of the existing hollow heat pipe. The internal parts are not tightly combined, the size of the product after pressing is large, and the structure damages the insulating paper. It solves the problems of low thermal efficiency and safety in the existing technology of the heating element of the heat-sensitive ceramic heater and the heater. , the problem that the reliability cannot be reliably guaranteed, and it also solves the defects of the elastic connection and the contact gap that must exist when the bonding between the heat dissipation corrugation, the heat conduction clamping aluminum sheet, and the heating element in the prior art is bonded with silicone rubber

Images