A kind of ceramic thick-film straight hair heater and its preparation process

Abstract

The invention discloses a ceramic thick-film straight hair heater. The straight hair heater includes a substrate layer, an insulating thick-film heat-conducting layer, a resistance layer and a conductive layer. The insulating thick-film heat-conducting layer, the resistance layer and the conductive layer are obtained from The bottom and at least the top are printed on the outer surface of the substrate layer in sequence, an NTC thermistor film layer is printed in the center of the insulating thick film heat conducting layer, and a first electrode and a second electrode are arranged on one end surface of the insulating thick film heat conducting layer , a third electrode is arranged on the surface of the other end of the insulating thick-film heat-conducting layer, and the resistive layer is mirror-symmetrically printed on the insulating thick-film heat-conducting layer on both sides of the NTC thermistor film layer, and the resistive layer is multi-segment Rectangular structure, each resistance layer is connected in series through the conductive layer and evenly distributed on the insulating thick-film heat-conducting layer. The heater of the present invention is simple in structure, strong in pressure resistance and heat shock resistance, simple in production process, can ensure the stability and reliability of the resistance layer structure, has fast heating time, greatly saves heating time, and has stable heating power.

Description

technical field [0001] The invention belongs to the technical field of heaters, and in particular relates to a ceramic thick-film straight hair heater and a preparation process thereof. Background technique [0002] Hair straighteners or hair irons are widely used in the hairdressing industry. The heat energy is provided by the heating plate. The heating plate generally uses a single PTC heating element fixed in the hair straightener or hair iron to generate heat. The heating plate is fixed on the straight In the casing of the hair iron or hair iron, to avoid direct contact between the heating element on the heating plate and the hair, thereby ensuring the power supply demand of the heating element and avoiding leakage. The thickness of the traditional heating plate is relatively thick, and the volume of the hair straightener or hair perm is often large during the processing process, and the heating time is long, and there is no temperature detector designed, so that in the ...

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Problems solved by technology

The thickness of the traditional heating plate is relatively thick, and the volume of the hair straightener or hair perm is often large during the processing process, and the heating time is long, and there is no temperature detector designed, so that in the process of use, often The temperature of the heating plate will be too high during the heating process, and the shell will be damaged, which will cause great harm to the user. Therefore, it is necessary to design a direct hair heater with higher safety

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