CN217361150U - Flexible crimp-resistant communication cable - Google Patents

Abstract

The utility model discloses a withstand voltage switch-on signal cable of soft type, including the central core of counterpoint type wholly aromatic copolyamide tensile fiber, a plurality of line footpaths are 0.08mm to 0.15mm copper monofilament around the outside spiral winding of the central core of counterpoint type wholly aromatic copolyamide tensile fiber and form the inner conductor layer, the external diameter of the central core of counterpoint type wholly aromatic copolyamide tensile fiber is three to six times of copper monofilament line footpath, electroplate at the inner conductor surface and form the tinned outer conductor layer, the inner conductor layer external diameter is no more than 1mm, tinned outer conductor layer thickness is 30 mu m to 85 mu m, the tinned outer conductor layer outside has the crowded package outer insulating layer of foaming fluororesin and fluororesin in proper order and the thickness ratio is 1:1 to 1.5: 1. This communication cable pliability is good, and tensile strength is higher with the intensity of pressing, can ensure with binding post pressure equipment firm in connection, guarantees electrical connection's reliability.

Description

Flexible crimp-resistant communication cable

technical field

The present application belongs to the technical field of cables, and in particular relates to a flexible pressure-resistant communication cable.

Background technique

When the end of the communication equipment cable needs to be wired, it needs to be applied to the terminal. When the communication cable is crimped and installed with the terminal, improper operation can easily cause insufficient contact area between the terminal and the cable conductor, and the connection is not firm, resulting in poor electrical connectivity and easy to cause Fault.

Utility model content

Aiming at the deficiencies of the prior art, the technical problem to be solved in the present application is to provide a soft crimp-resistant communication cable, which has good flexibility, higher tensile strength and crimping strength, and can ensure a firm crimp connection with the terminal. Ensure the reliability of the electrical connection.

The present application solves the above technical problems through the following technical solutions.

Flexible crimp-resistant communication cable, comprising a para-type wholly aromatic copolyamide drawn fiber central core, and a plurality of copper monofilaments with a wire diameter of 0.08mm to 0.15mm surrounding the para-type wholly aromatic copolyamide drawn fiber The outer diameter of the central core material is spirally wound to form an inner conductor layer, the outer diameter of the para-type wholly aromatic copolyamide drawn fiber central core material is three to six times the diameter of the copper monofilament, and the outer diameter of the central core material is three to six times the diameter of the copper monofilament. The surface is electroplated to form a tin-plated outer conductor layer, the outer diameter of the inner conductor layer is not more than 1 mm, the thickness of the tin-plated outer conductor layer is 30 μm to 85 μm, and the outside of the tin-plated outer conductor layer is sequentially coated with foamed fluororesin. The insulating layer and the fluororesin extruded outer insulating layer, the thickness ratio of the foamed fluororesin inner insulating layer and the fluororesin extruded outer insulating layer is 1:1 to 1.5:1.

Preferably, the lay length of the copper monofilament is five to ten times the outer diameter of the inner conductor layer.

Preferably, the outer diameter of the inner conductor layer is not less than 0.45mm.

Preferably, the thickness of the fluororesin extruded outer insulating layer is 0.15mm to 0.85mm.

Preferably, the total thickness of the foamed fluororesin inner insulating layer and the fluororesin extruded outer insulating layer is 0.3 mm to 1.6 mm.

Preferably, the foamed fluororesin inner insulating layer is a PFA, FEP or PTFE foamed insulating layer.

Preferably, the fluororesin extruded outer insulating layer is a PFA, FEP or PTFE insulating layer.

Preferably, the thickness of the tin-plated outer conductor layer is 45 μm to 55 μm.

Preferably, the thickness ratio of the foamed fluororesin inner insulating layer to the fluororesin extruded outer insulating layer is 1.1:1 to 1.25:1.

Preferably, the helix angle of the inner conductor layer is 30 degrees to 40 degrees.

Beneficial effects of this application:

1. The central core material is para-type wholly aromatic copolyamide stretched fiber, which has good flexibility and large tensile elastic modulus, which helps to improve the tensile strength of the inner conductor layer, and the inner conductor layer can better withstand The lateral pressure when the cable is bent, it is not easy to deform and break the wire, enhance the bending resistance, and ensure good electrical performance.

2. The tin-plated outer conductor layer is formed by electroplating on the outer surface of the inner conductor layer formed by the spiral winding of the copper monofilament. The wire diameter of the copper monofilament is reasonably designed, and the thickness of the tin-plated outer conductor layer is optimized. The wires are tightly integrated into a whole without loosening, and have higher tensile strength and crimping strength.

3. The insulating layer is made of foamed fluororesin inner insulating layer and fluororesin extruded outer insulating layer. The thickness ratio is optimized to reinforce each other. The tensile strength and elongation of the fluororesin extruded outer insulating layer are greater than those of foamed fluorine The resin inner insulating layer has better bending resistance and is not easy to tear, which is conducive to the flexible installation of cables.

Description of drawings

FIG. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.

Description of reference numbers:

1- Para-type wholly aromatic copolyamide drawn fiber center core material, 2- Inner conductor layer, 3- Tin-plated outer conductor layer, 4- Foamed fluororesin inner insulating layer, 5-Fluorine resin extruded outer insulating layer .

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. example. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Referring to FIG. 1 , the flexible crimp-resistant communication cable according to an embodiment of the present application includes a para-position type wholly aromatic copolyamide drawn fiber central core material 1, and several copper monofilaments with a wire diameter of 0.08mm to 0.15mm surround the pair The position-type wholly aromatic copolyamide drawn fiber central core material 1 is externally wound helically to form an inner conductor layer 2 . Specifically, the helix angle of the inner conductor layer 2 is 30 degrees to 40 degrees. The outer diameter of the para-type wholly aromatic copolyamide drawn fiber central core material 1 is three to six times the wire diameter of the copper monofilament, and further, the copper monofilament lay length is the inner conductor layer 2 Five to ten times the outer diameter. The outer diameter of the inner conductor layer 2 is not more than 1 mm, and further, the outer diameter of the inner conductor layer 2 is not less than 0.45 mm. A tin-plated outer conductor layer 3 is formed by electroplating on the outer surface of the inner conductor layer 2 , and the thickness of the tin-plated outer conductor layer 3 is 30 μm to 85 μm. Further, the thickness of the tin-plated outer conductor layer 3 is 45 μm to 55 μm.

The outside of the tin-plated outer conductor layer 3 is sequentially covered with a foamed fluororesin inner insulating layer 4 and a fluororesin extruded outer insulating layer 5, and the foamed fluororesin inner insulating layer 4 is, for example, PFA, FEP or PTFE foam. Insulation. The fluororesin extruded outer insulating layer 5 is, for example, a PFA, FEP or PTFE insulating layer. The thickness ratio of the foamed fluororesin inner insulating layer 4 to the fluororesin extruded outer insulating layer 5 is 1:1 to 1.5:1. Further, the foamed fluororesin inner insulating layer 4 and the fluorine resin The thickness ratio of the resin-extruded outer insulating layer 5 is 1.1:1 to 1.25:1. Specifically, the thickness of the fluororesin extruded outer insulating layer 5 is 0.15 mm to 0.85 mm. The total thickness of the foamed fluororesin inner insulating layer 4 and the fluororesin extruded outer insulating layer 5 is 0.3 mm to 1.6 mm.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (10)

1. A flexible pressure-resistant communication cable, characterized in that it comprises a center core material (1) of a para-type wholly aromatic copolyamide drawn fiber, and a plurality of copper monofilaments with a wire diameter of 0.08 mm to 0.15 mm surround the para-position type. The outer diameter of the para-type wholly aromatic copolyamide stretched fiber central core material (1) is spirally wound on the outside to form an inner conductor layer (2), and the outer diameter of the para-type wholly aromatic copolyamide stretched fiber central core material (1) is Three to six times the wire diameter of the copper monofilament, the outer surface of the inner conductor layer (2) is electroplated to form a tin-plated outer conductor layer (3), the outer diameter of the inner conductor layer (2) does not exceed 1mm, and the tin-plated outer conductor layer (3) is formed by electroplating. The thickness of the outer conductor layer (3) is 30 μm to 85 μm, and the outside of the tin-plated outer conductor layer (3) is sequentially covered with a foamed fluororesin inner insulating layer (4) and a fluororesin extruded outer insulating layer (5), so The thickness ratio of the foamed fluororesin inner insulating layer (4) to the fluororesin extruded outer insulating layer (5) is 1:1 to 1.5:1. 2 . The flexible pressure-resistant communication cable according to claim 1 , wherein the twisting pitch of the copper monofilament is five to ten times the outer diameter of the inner conductor layer ( 2 ). 3 . 3 . The flexible pressure-resistant communication cable according to claim 1 , wherein the outer diameter of the inner conductor layer ( 2 ) is not less than 0.45 mm. 4 . 4. The flexible pressure-resistant communication cable according to claim 1, wherein the thickness of the fluororesin extruded outer insulating layer (5) is 0.15mm to 0.85mm. 5. The flexible pressure-resistant communication cable according to claim 1, wherein the total thickness of the foamed fluororesin inner insulating layer (4) and the fluororesin extruded outer insulating layer (5) is 0.3mm to 1.6mm. 6 . The flexible pressure-resistant communication cable according to claim 1 , wherein the foamed fluororesin inner insulating layer ( 4 ) is a PFA, FEP or PTFE foamed insulating layer. 7 . 7 . The flexible pressure-resistant communication cable according to claim 1 , wherein the fluororesin extruded outer insulating layer ( 5 ) is a PFA, FEP or PTFE insulating layer. 8 . 8 . The flexible pressure-resistant communication cable according to claim 1 , wherein the thickness of the tin-plated outer conductor layer ( 3 ) is 45 μm to 55 μm. 9 . 9. The flexible pressure-resistant communication cable according to claim 1, wherein the thickness ratio of the foamed fluororesin inner insulating layer (4) to the fluororesin extruded outer insulating layer (5) is 1.1:1 to 1.25:1. 10 . The flexible pressure-resistant communication cable according to claim 1 , wherein the helix angle of the inner conductor layer ( 2 ) is 30 degrees to 40 degrees. 11 .

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