Composite fireproof cable

A fireproof cable and cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of poor heat dissipation performance of cables, shorten the service life of cables, prone to spontaneous combustion, etc., and achieve the effect of good heat dissipation performance and increased flame retardant ability.

Active Publication Date: 2019-10-22

ANHUI STAR CABLE

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AI-Extracted Technical Summary

Problems solved by technology

[0002] The current cables generally include a cable sheath and a cable core wire. The cable core wire is arranged in the cable sheath, but the current cable sheath is generally made of ordinary flexible materials, which are very easy to be ignited. Due to the long-term aging of the cable, it is...

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Method used

In the present embodiment, sealing part 3 adopts elastic rubber material to make, and it has included sealing layer, and sealing layer inside has a filling chamber, fills fire-retardant fireproof liquid 32 in filling chamber, when cable core wire recovers deformation, The sealing part shrinks gradually, and the inte...

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Abstract

The invention discloses a composite fireproof cable. The composite fireproof cable comprises a cable outer protection layer; the cable outer protection layer is internally provided with a cable installation cavity; a cable main body is installed in the cable installation cavity; the cable main body comprises a cable outer cover layer and a cable core; the interface ends at two ends of the cable outer protection layer are installed with interfaces; the cable core passes through the interfaces and reaches out of the outer part; and the contact end between the cable core and the interface is fixed by a glue. The cable disclosed in the invention has excellent cooling performance; and in the case of cable outgoing spontaneous combustion, the contact friction force is used to extinguish the flame, and at the same time, a flame retardant liquid is extruded to prevent further combustion.

Application Domain

Insulated cablesInsulated conductors

Technology Topic

EngineeringContact friction +3

Image

Examples

Experimental program(1)

Example Embodiment

[0018] Such as figure 1 with figure 2 As shown, the composite fireproof cable includes a cable outer protective layer 2. A cable installation cavity 13 is provided in the cable outer protective layer 2 and a cable main body is installed in the cable installation cavity 13;

[0019] The main body of the cable includes a cable outer layer 11 and a cable core wire 12. The two ends of the cable outer protective layer 2 are each equipped with a port 4, the cable core wire 12 passes through the port 4 and extends to the outside. The cable core wire 12 and the port 4 Glue the contact end to fix it;

[0020] More than one heat dissipation pin 1 is symmetrically arranged on both sides of the cable outer layer 11, one end of the heat dissipation pin 1 extends into the arc groove 7 opened on the cable outer protective layer 2, and one bottom surface of the arc groove 7 A sealing part 3 is fixedly arranged. The inside of the sealing part 3 is filled with flame-retardant material and the sealing part expands along the arc-shaped groove 7. After the sealing part 3 expands, the radiating needle 1 moves along the arc-shaped groove 7, and the radiating needle 1 drives the The cable outer layer in the cable installation cavity 13 is elastically twisted, the sealing portion 3 seals the entire arc-shaped groove 7, and the heat dissipation pin 1 slightly protrudes outside the cable outer protective layer 2.

[0021] In this embodiment, two contact parts 8 are symmetrically arranged in the cable installation cavity 13, and the two contact parts 8 are arranged symmetrically. They are arranged on the inner wall surface of the cable outer protective layer 2 avoiding the arc-shaped groove 7, and the contact parts 8 are opposite to the cable core. One side of the wire is an arc-shaped concave surface, which is in contact with the outer wall surface of the cable core 12, and the contact part 8 is made of flexible flame-retardant rubber. When the cable core recovers from deformation, it will twist and recover its deformation. In the process, use physical means to quickly remove the flame outside the cable core.

[0022] In this embodiment, the sealing part 3 is made of elastic rubber material, which includes a sealing layer. The inside of the sealing layer has a filling cavity, and the filling cavity is filled with flame retardant and fireproof liquid 32. When the cable core wire recovers from deformation, the sealing part is slow. Slowly shrink, the internal flame-retardant fireproof liquid can be extruded and sprayed on the outside of the cable core wire by elastic squeezing force, which can further increase the flame retardancy, and use the flame-retardant liquid to prevent the flame from continuing to burn and obtain a long time The flame retardant effect.

[0023] In this embodiment, gas is filled in the sealing layer to form an inflatable section 33, such as Figure 4 As shown, the inflatable section has two purposes, one is to make the sealing layer 3 tighter with the inner wall of the arc-shaped groove, and the other is to make the inflatable section be burned by the flame in the event of a fire, so as to make the sealing layer It is damaged at the inflatable section, and then the internal flame retardant liquid is squeezed out.

[0024] Among them, one end of the heat sink 1 is fixedly inserted into the cable core 12 and glued to the outer layer of the cable, and one end of the sealing part 3 is glued and fixed to the bottom surface of the arc groove. The two sides of the sealing part 3 are connected to the arc The inner wall surface of the groove 7 is in sealed contact, and the other end of the sealing part is in sealed contact with the heat dissipation pin. During normal use, the internal heat is discharged through the heat dissipation pin to increase the heat dissipation performance. When a fire occurs, the sealing part can be destroyed and the cable core wire can be reset, such as image 3 As shown, at this time, physical fire extinguishing can be realized by using the contact part.

[0025] The beneficial effects of the present invention are: the present invention has very good heat dissipation performance, uses the heat dissipation pin to realize rapid heat dissipation inside and outside, and uses the heat dissipation pin to twist the cable core wire, so that in the event of a fire, the cable core wire can be twisted relative to the contact part. Physical friction is used to extinguish the fire, and flame retardant liquid is used to further increase the flame retardant ability.

[0026] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work shall be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Improve flame retardant ability
Good cooling performance

Composite fireproof cable

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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