Linear heating wire device
A heating wire and wire-shaped technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of high cost, large change of polymer heat-sensitive layer 3a with time, and inability to control temperature.
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[0092] Embodiments of the linear heating wire of the present invention will be described in detail below with reference to the drawings and the like. In addition, this invention is not limited to the following unless it deviates from the summary. figure 1 One end of the linear heating wire 1H according to the embodiment of the present invention is shown, and an insulating coating layer, a polymer layer, and the like are partially omitted.
[0093] This linear heating wire 1H is composed of a winding core 1 of fiber bundles such as glass fibers or polyester fibers; A polymer layer 3 formed by extruding a polymer thermosensitive resin on the outer periphery of the heating core wire 2; a short circuit of the temperature detecting core wire 4 that is spirally wound at a certain pitch by setting mutual intervals on the outer periphery of the polymer layer 3 The detection core wire 6; and the insulating covering layer 5 formed by extruding polyvinyl chloride or the like on the out...
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