TW202217864A - Flame retardant cable including at least one conductor, at least one insulating layer, a shielding layer and a flame-retardant braided layer - Google Patents

Abstract

The present invention relates to a flame retardant cable, which includes at least one conductor; at least one insulating layer, which covers the conductor in an axial direction of the conductor a material of the insulating layer being perfluoroethylene propylene copolymer (FEP); a shielding layer, which covers an outside of the insulating layer in the axial direction of the conductor, a material of the shielding layer being tinned copper; and a flame-retardant braided layer, which covers an outside of the shielding layer in the axial direction of the conductor, a material of the flame-retardant braided layer being polyphenylene sulfide (PPS). By using the heat resistance of the insulating layer, the oxidation resistance of the shielding layer and the flame retardancy of the flame retardant braided layer for covering the conductor, the present invention can be normally operated in a high temperature environment, and the wire also has the effect of high temperature resistance and flame retardancy.

Description

Flameproof cable

The present invention relates to a cable, especially a cable covered with multiple layers of fire-resistant materials.

Cables in the prior art, especially cables for USB, there is a super-flexible cable such as Chinese Invention Publication No. CN111326282A, which includes a plurality of metal core wires, and the periphery of each metal core wire extends along the axial direction with flexible protection. The material of the flexible protective layer is super-flexible rubber-plastic alloy elastomer or silicone, which has low manufacturing cost, good softness and weather resistance.

However, when the aforementioned cable is used in a high temperature environment, because its material does not have good thermal insulation, it is easy to cause the signal to be disturbed during the transmission process, or the wire may be melted; therefore, the prior art cable The overall structure of the cable has the aforementioned problems and shortcomings, and needs to be improved.

In view of the deficiencies of the prior art, the present invention provides a flame-proof cable, which achieves the purpose of flame-proof by covering the conductor with a material with high temperature resistance and flame-proof effect.

In order to achieve the above-mentioned purpose of the invention, the technical means adopted in the present invention is to design a flame-proof cable, which includes: at least one conductor; at least one insulating layer covering the conductor along the axial direction of the conductor, and the material of the insulating layer is perfluoroethylene propylene copolymer (FEP); a shielding layer covering the insulating layer along the axial direction of the conductor, and the shielding layer is made of tinned copper; A flame-retardant braided layer covers the shielding layer along the axial direction of the conductor, and the material of the flame-retardant braided layer is polyphenylene sulfide (PPS).

Further, in the flame-retardant cable, the insulating layer is replaced by a thermoplastic elastomer (TPE) for the perfluoroethylene propylene copolymer (FEP).

Further, in the flame-retardant cable, the conductor is a tinned copper wire.

The advantage of the present invention is that, by virtue of the heat resistance of the insulating layer, the oxidation resistance of the shielding layer, and the flame resistance of the flame retardant braided layer, the conductor can be normally operated in a high temperature environment, and the wire also has resistance to High temperature and flame retardant effect; and the insulating layer can replace perfluoroethylene propylene copolymer (FEP) with thermoplastic elastomer (TPE), and can also achieve high temperature resistance and flame retardant effect.

The technical means adopted by the present invention to achieve the predetermined purpose of the invention are further described below with reference to the drawings and preferred embodiments of the present invention.

Please refer to FIG. 1 , the flame-retardant cable according to the first embodiment of the present invention includes a conductor 10 , an insulating layer 20 , a shielding layer 30 and a flame-retardant braided layer 40 .

Please refer to FIG. 1 and FIG. 2 , the conductor 10 is a metal wire with the function of conducting signal, in this embodiment, the material is tinned copper wire, but not limited to this, any wire with the function of conducting signal can be used.

The insulating layer 20 covers the outer ring side of the conductor 10 along the axial direction of the conductor 10. The insulating layer 20 is made of perfluoroethylene propylene copolymer (Fluorinated ethylene propylene, referred to as FEP), which has high temperature resistance (normal continuous use). The temperature range is -85℃~200℃), high tensile strength and high wear resistance of engineering plastics, but not limited to this, in other embodiments can be replaced with thermoplastic elastomer (Thermoplastic elastomer, referred to as TPE) , which also has the characteristics of high temperature resistance, high tensile strength and high wear resistance. The aforementioned perfluoroethylene propylene copolymer and thermoplastic elastomer are the raw materials of the prior art, so they will not be described in detail.

The material of the shielding layer 30 is tin-plated copper. In detail, it is a mesh woven from tin-plated copper. The shielding layer 30 covers the insulating layer 20 along the axial direction of the conductor 10. Anti-oxidation properties, but not limited to this, the shielding layer can also be a spiral wound material, and the material can be replaced with silver-plated copper, any material that can achieve the effect of preventing electromagnetic interference (Electromagnetic Interference, referred to as EMI) is all Can.

The material of the flame-retardant braided layer 40 is polyphenylene sulfide (PPS), in detail, it is a mesh material woven from polyphenylene sulfide wire, and the flame-retardant braided layer 40 is along the axial direction of the conductor 10 . Coated outside the shielding layer 30, polyphenylene sulfide is a high-temperature-resistant and flame-resistant raw material in the prior art, so it will not be described in detail.

The overall structure of the present invention is a multi-layered wire. Referring to the cross-sectional view of FIG. 2, it can be seen that from the inside to the outside, it is a ring-shaped laminated structure of a conductor 10, an insulating layer 20, a shielding layer 30 and a flame-retardant braided layer 40. The heat resistance of 20, the oxidation resistance of the shielding layer 30, and the flame resistance of the flame retardant braided layer 40, the coated conductor 10 achieves that the present invention not only can operate normally in a high temperature environment, but also has the effect of high temperature resistance and flame resistance. .

Please refer to FIG. 3 and FIG. 4 , which are the second embodiment of the present invention, wherein the shielding layer 30A and the flame-retardant braided layer 40A are the same as the first embodiment, and the main difference is that there are multiple conductors 10A and multiple insulating layers 20A, Specifically, the shielding layer 30A is covered with a plurality of conductors 10A with the insulating layer 20A, so that the present invention constitutes a multi-core cable, which can be applied to wires of USB 2.0 specifications.

The above description is only the preferred embodiment of the present creation, and does not limit the present creation in any form. Although the present creation has been disclosed as above with the preferred embodiments, it is not intended to limit the present creation. Those of ordinary knowledge, without departing from the scope of the technical solution of this creation, can make some changes or modifications by using the technical content disclosed above as equivalent embodiments of equivalent changes, provided that any content that does not depart from the technical solution of this creation, according to this The technical essence of the creation Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the creation.

10: Conductor 10A: Conductor 20: Insulation layer 20A: Insulation layer 30: masking layer 30A: Shielding layer 40: flame retardant braid 40A: Flame Retardant Braid

FIG. 1 is a three-dimensional external view of a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the first embodiment of the present invention. FIG. 3 is a perspective external view of a second embodiment of the present invention. 4 is a cross-sectional view of a second embodiment of the present invention.

10: Conductor

20: Insulation layer

30: masking layer

40: flame retardant braid

Claims (6)

A flameproof cable comprising: at least one conductor; at least one insulating layer covering the conductor along the axial direction of the conductor, and the material of the insulating layer is perfluoroethylene propylene copolymer (FEP); a shielding layer covering the insulating layer along the axial direction of the conductor, and the shielding layer is made of tinned copper; A flame-retardant braided layer covers the shielding layer along the axial direction of the conductor, and the material of the flame-retardant braided layer is polyphenylene sulfide (PPS). The flame-retardant cable according to claim 1, wherein the material of the insulating layer is a thermoplastic elastomer (TPE) instead of the perfluoroethylene propylene copolymer (FEP). The flame-retardant cable according to claim 1, wherein the material of the shielding layer is silver-plated copper instead of the tin-plated copper. The flame-retardant cable according to any one of claims 1 to 3, wherein the conductor is a tinned copper wire. The flame-retardant cable according to claim 4, wherein the shielding layer is a braided mesh material. The flame-retardant cable according to claim 4, wherein the shielding layer is a spiral coil winding material.

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