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Recoverable flexible temperature sensing cable

A sensitive temperature-sensing and cable technology, which is applied in the direction of insulated cables, power cables with shielding layers/conductive layers, cables, etc., can solve the problems of uneven heating temperature, long response time, poor sensitivity, etc., and achieve fast and timely recovery Effects of temperature-sensing performance, improved sensitivity, and shortened response time

Active Publication Date: 2014-06-11
重庆神舟电缆集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are problems such as uneven heating temperature, long response time, and poor sensitivity in the temperature-sensing cable formed by twisting more than two

Method used

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  • Recoverable flexible temperature sensing cable

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Embodiment Construction

[0016] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a recoverable sensitive temperature-sensitive cable proposed by the present invention.

[0017] refer to figure 1 , a recoverable sensitive temperature-sensitive cable proposed by the present invention includes a cable core composed of three conductors 1 and a support core 2 .

[0018] The inside of the conductor 1 is a wire 11, and the outside of the wire 11 is covered with an insulating layer 12, and the insulating layer 12 is made of a heat-sensitive material with a negative temperature coefficient. The support core 2 is integrally formed by three aluminum support plates, the angle between two adjacent aluminum support plates is 120 degrees, and the arc transition between two adjacent aluminum support plates. The radial length of the aluminum support plate is not greater than the diameter of the conductor 1, and the end of the aluminum support plate transitions smoothly.

[0019] The thre...

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Abstract

The invention discloses a recoverable flexible temperature sensing cable. A cable core is composed of three conductors and a supporting core. Each conductor comprises a wire and an insulating layer, wherein the wire is located in the middle, and the insulating layer coats the wire. The insulating layers are made of negative temperature coefficient heat sensitive material. The supporting core is composed of three metal supporting plates, and the included angle between every two adjacent metal supporting plates is 120 degrees. The three conductors are longitudinally arranged between every two adjacent metal supporting plates respectively, and the conductors adjoin to every two adjacent metal supporting plates adjacent to the corresponding conductors. A one-side metal and plastic composite belt coats the cable core, the metal layer of the one-side metal and plastic composite belt is arranged inwards, and the plastic layer of the one-side metal and plastic composite belt is arranged outwards. An inner sheath coats the one-side metal and plastic composite belt, an outer sheath coats the inner sheath, and a lubricating layer is arranged between the inner sheath and the outer sheath. The recoverable flexible temperature sensing cable is stable in structure and high in flexibility, and can be safely used in the overload or high temperature environment.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a recoverable sensitive temperature-sensitive cable. Background technique [0002] The insulation and sheath materials of ordinary power cables are generally polyvinyl chloride, cross-linked polyolefin, etc. These materials will rapidly age when the cable is overloaded or high temperature, until the cable fails. One of the most important safety current values ​​is the safety current value of the cable. The temperature of the wire itself will be different due to the heat generated by the cable load operation. When the electrical appliance exceeds the safe current overload and the temperature rises, it is impossible to quickly and directly judge the safety of the cable. [0003] The working principle of the commonly used temperature-sensing cable is that when the ambient temperature rises, the resistance between the metal wires changes, or a short circuit occurs, and an alarm output...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/18H01B9/02
Inventor 魏宜王斌童天明谷庆生方伟
Owner 重庆神舟电缆集团股份有限公司
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