Anti-overheating cable

A technology to prevent overheating and cables, applied in the direction of insulated cables, flat/ribbon cables, cables, etc., can solve problems such as spontaneous combustion, damage to life and property safety, etc., to avoid excessive heat accumulation, achieve heat transfer, and rapid heat dissipation.

Active Publication Date: 2021-01-26
宇盛电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, which transmits power or information from one place to another. However, when the current power cable passes a certain load current, due to its own conductor material If there is a resistance value, it will definitely generate heat. As the load current increases, the surface temperature of the cable will increase. If it is not handled in time, it will easily cause spontaneous combustion and damage people's lives and property.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 and 2 The anti-overheating cable shown includes: several cable cores 1 arranged side by side, and an inner lining layer 2, an outer insulating layer 3, a metal strip heat conducting layer 4 and an abrasion-resistant sheath layer 5 coated on the outer periphery of each cable core 1 in sequence;

[0030] An elliptical cavity is arranged inside the outer insulating layer 3, and an endothermic expansion strip 7 is arranged between the outer insulating layer 3 and the inner lining layer 2. The inner liner 2 is extruded so that the inner liner 2 forms an arc-shaped depression, the inner liner 2 is made of elastic material, and the inner liner 2 is provided with several holes at least in the arc-shaped depression, and the heat-absorbing expansion strip 7 passes through the thermal expansion control hole bit opening.

[0031] As a preference of the above-mentioned embodiment, a support frame 6 is arranged in the inner lining layer 2 to support the local position...

Embodiment 2

[0037] like image 3 As shown, the difference from Embodiment 1 is that the circumferential surface of the heat-absorbing expansion strip 7 is equidistantly provided with several protrusions 72 equal in length to the heat-absorbing expansion strip 7 , and heat dissipation channels are formed between two adjacent protrusions 72 . Reduce the number of heat dissipation layers.

Embodiment 3

[0039] like Figure 4 As shown, the difference from the first embodiment is that the circumferential surface of the heat-absorbing expansion strip 7 is provided with a spiral groove 73, and the spiral groove 73 is used to form a heat dissipation channel and reduce the number of heat dissipation layers.

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PUM

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Abstract

The invention relates to the technical field of cables, in particular to an anti-overheating cable, which comprises a plurality of cable cores arranged side by side, and an inner lining layer, an outer insulating layer, a metal belt heat conduction layer and an anti-abrasion sheath layer which sequentially coat the periphery of each cable core, an oval cavity is formed in the outer insulating layer, heat absorption expansion strips are arranged between the outer insulating layer and the lining layer, the heat absorption expansion strips are located at the two ends of the long axis of the ovalcavity, the heat absorption expansion strips extrude the lining layer to enable the lining layer to form an arc-shaped recess, and the lining layer is made of elastic materials. The lining layer is atleast provided with a plurality of hole sites in the arc-shaped recesses, and the opening degree of the hole sites is controlled by the heat absorption expansion strips through thermal expansion.

Description

technical field [0001] The invention relates to the technical field of electric cables, in particular to an anti-overheating electric cable. Background technique [0002] The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, which transmits power or information from one place to another. However, when the current power cable passes a certain load current, due to its own conductor material If there is a resistance value, it will definitely generate heat. As the load current increases, the surface temperature of the cable will increase. If it is not handled in time, it will easily cause spontaneous combustion and damage people's lives and property. [0003] In view of the existence of the above problems, the designer actively researches and innovates based on years of rich practical experience and professional knowledge in the engineering application of such products, in order to create an anti-overheating cable to make it mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/42H01B7/18H01B7/08
CPCH01B7/08H01B7/18H01B7/421H01B7/428
Inventor 任志飞张曙光周诚凯
Owner 宇盛电气有限公司
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