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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.

Inactive Publication Date: 2013-05-08
HONGKONG TACHIBANA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] Therefore, the existing two-wire linear heating line method composed of a linear sensing line and a linear heating line is a good configuration that can completely separate the temperature control function and the safety protection function, and the fusing time difference caused by the short circuit position between the lines There is still a margin within the allowable range, which is an excellent method of safety, but because two wires are used, the cost is very high and uneconomical, and because the thermally sensitive polymer layer 3a changes greatly with time, there are Large problem that stable temperature control cannot be performed for a long time

Method used

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Embodiment Construction

[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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Abstract

Provided is a linear heating wire device, which is a single-line linear heating wire, and a temperature detection core wire and a short circuit detection core wire interactively winding around the outer circumference of a polymer layer at certain intervals spirally, so that a temperature control circuit and an interline short circuit protection circuit are separated, and a high-precision and stable temperature control function and a interline short circuit protection function with little fluctuation and high security are obtained in an economical way. A heating core wire (2) is spirally wounded around a roll core (1); a polymer layer (3) is formed around the roll core (1); a temperature detection core wire (4) and a short circuit detection core wire (6) are interactively kept from each at a certain distance on the outer circumference of the roll core (1), and are spirally wounded in a manner of biting into the polymer layer; and an insulation covering layer (5) is further formed on the roll core (1). Since the temperature detection core wire and the short circuit detection core wire are separated in space, the temperature control of the temperature detection core wire and the interline short circuit protection of the short circuit detection core wire can be performed independently, highly precisely with no fluctuation.

Description

technical field [0001] The invention relates to a linear heating wire device used in planar heating appliances such as electric heating blankets and electric heating carpets. Background technique [0002] In general, the linear heating wires used in surface heating appliances such as electric heating carpets are well known. The structure formed by the hot line is called a double-line structure, and its structure is as follows image 3 shown. [0003] In this figure, the linear sensor wire 100 is composed of a winding core 1a of a fiber bundle such as polyester fiber, and an inner electrode core wire 2a formed by spirally winding a copper or copper alloy conductor on the outer periphery of the winding core 1a. ; The heat-sensitive polymer layer 3a formed by extruding a heat-sensitive polymer resin on the outer periphery of the inner electrode core wire 2a; the outer electrode formed by winding a copper or copper alloy conductor in a spiral shape on the outer periphery of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/56H05B3/10
Inventor 野村卓志朝仓正博
Owner HONGKONG TACHIBANA ELECTRONICS
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