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Pressure-bearing cable capable of efficiently dissipating heat

A cable, high-efficiency technology, applied in the direction of insulated cables, power cables, cables, etc., can solve the problems of cable structure and packaging material fatigue, increased cable resistivity, damaged cable structure, etc., to prevent damage and danger, and increase the speed of incoming and outgoing wind , the effect of ensuring stability

Inactive Publication Date: 2017-07-25
郑行良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of them are erected in the air or installed underground or underwater for telecommunications or power transmission; existing cables, especially cables with large current flux and high voltage, generate a lot of heat for a long time, which is easy to fatigue the cable structure and packaging materials. It affects the material properties, damages the cable structure, and is easy to cause danger and produce unpredictable consequences. Moreover, the resistivity of the cable increases with the increase of temperature, which will waste electric energy. The heat conduction part of the cable uses a copper core, and the copper is soft. Minor deformations are likely to occur during extrusion and transportation, which affects power transmission efficiency

Method used

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  • Pressure-bearing cable capable of efficiently dissipating heat
  • Pressure-bearing cable capable of efficiently dissipating heat
  • Pressure-bearing cable capable of efficiently dissipating heat

Examples

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as Figures 1 to 3 As shown, a high-efficiency heat dissipation pressure-bearing cable includes a cable body 1 and a shape-memory heat-conducting sheet 2 sleeved outside the cable body 1; the shape-memory heat-conducting sheet 2 extends along the length of the cable and radially The section is spiral; the shape memory heat conduction sheet 2 is composed of a first heat conduction layer 21, a second heat conduction layer 22 and a sealed cavity 23 surrounded by the first heat conduction layer 21 and the second heat conduction layer 22; the first The heat conduction layer 21 forms the spiral outer layer of the shape memory heat conduction sheet 2, and the second heat conduction layer 22 forms the spiral inner layer of the shape memory heat conduction sheet 2; the thermal expansion rate of the second heat conduction layer 22 is greate...

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Abstract

The invention relates to a pressure-bearing cable capable of efficiently dissipating heat. The cable comprises a cable body and a shape-memory heat-conducting sheet sleeving the cable body. The shape-memory heat-conducting sheet extends in the length direction of the cable and has a spiral radial cross section in a static force state. The shape-memory heat-conducting sheet is composed of a first heat-conducting layer, a second heat-conducting layer and a sealing cavity defined by the first heat-conducting layer and the second heat-conducting layer. The first heat-conducting layer forms the spiral outer layer of the shape-memory heat-conducting sheet. The second heat-conducting layer forms the spiral inner layer of the shape-memory heat-conducting sheet. The pressure-bearing cable capable of efficiently dissipating heat can spontaneously and automatically change the corresponding heat dissipation area according to a heat generation condition of the cable so as to guarantee the stability of cable temperature, to prevent various damages and dangers due to over-high cable temperature, and to reduce a waste of electric power, and can capture external wind to dissipate the heat more efficiently by using the external wind. In addition, the cable has good anti-compression performance.

Description

technical field [0001] The invention relates to a high-efficiency heat dissipation pressure-bearing cable, which belongs to the field of electric power transmission. Background technique [0002] Cables are widely used in production and life. Cables are usually rope-like cables twisted by several wires or groups of wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outer The bread has a highly insulating covering. Most of them are erected in the air or installed underground or underwater for telecommunications or power transmission; existing cables, especially cables with large current flux and high voltage, generate a lot of heat for a long time, which is easy to fatigue the cable structure and packaging materials. It affects the material properties, damages the cable structure, and is easy to cause danger and produce unpredictable consequences. Moreover, the resistivity of the cable increases with the increase of tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B7/18H01B7/42
CPCH01B9/00H01B7/18H01B7/423H01B7/428
Inventor 郑行良
Owner 郑行良
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