Electric heating tape with temperature detection function

Abstract

One or more embodiments of the invention provide an electric heating tape with a temperature detection function. The electric heating tape comprises an insulating layer extruded and coated on the outer layer and a plurality of built-in heating cores, a filling layer is arranged in the gap part between the insulating layer and the heating cores, a thermal expansion piece is arranged at the middle position of the interval between the adjacent heating cores, a positioning block is fixed to the outer end of the thermal expansion piece, detection interlayers are sequentially arranged on the outer ring of the insulating layer at intervals in the circumferential direction and correspond to the heating cores one to one, outer coatings are arranged in the detection interlayers, the outer coatings are filled with heat conduction liquid and temperature sensors in a sealed mode, and in the initial state, the thermal expansion piece is in a contraction state, so that the positioning block retracts into the core body. When the core body is electrified and heated, the thermal expansion piece is triggered to expand and extend outwards so as to drive the positioning block to extend and penetrate into the detection interlayer, so that the two ends of the outer coating are extruded to be positioned towards the middle, and the temperature sensor is enabled to be positioned on the outer side of the same radial direction of the corresponding heating core so as to accurately measure the temperature.

Description

technical field [0001] One or more embodiments of this specification relate to the technical field of electric heating belts, and in particular to an electric heating belt with a temperature detection function. Background technique [0002] The existing electric heating belt is more and more widely used, and it brings higher requirements for the uniformity and controllability of the temperature during the heat treatment process. If the temperature is not uniform or the temperature field does not meet the appropriate requirements, Obviously, it has a considerable impact on the processing quality of the heating material, so it is of great significance to the real-time monitoring of the temperature distribution in all directions, so as to help obtain a more accurate target temperature, and the existing electric heating belt is rarely equipped with With the function of temperature detection in all directions, it is usually necessary to use an external independent temperature det...

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Problems solved by technology

[0002] The existing electric heating belt is more and more widely used, and it brings higher requirements for the uniformity and controllability of the temperature during the heat treatment process. If the temperature is not uniform or the temperature field does not meet the appropriate requirements, Obviously, it has a considerable impact on the processing quality of the heating material, so it is of great significance to the real-time monitoring of the temperature distribution in all directions, so as to help obtain a more accurate target temperature, and the existing electric heating belt is rarely equipped with With the function of temperature detection in all directions, it is usually necessary to use an external independent temperature detection device, resulting in inconvenient assembly and use, low integration of equipment, and low detection accuracy. For this, a simple built-in multiple Although the temperature detector method can also integrate the temperature detection function, it is obviously not enough to meet the requirements of the electric heating belt itself because it is easily affected by bending, pressure, deformation, etc., which easily damages the directly built-in temperature detector. Practical functions for further stable and accurate temperature detection

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