CN215265624U - High-speed transmission cable with double-twisted structure - Google Patents

Abstract

The utility model provides a two high-speed transmission cable of twisted pair structure, includes conductor, insulating cover, ground wire, band layer and sheath subassembly, and insulating cover cladding forms insulating single line outside the conductor, and insulating single line and ground wire transposition form insulating heart yearn, and the cladding of band layer is in the outside of insulating heart yearn, and the sheath subassembly cladding is in the outside of band layer, through ground wire and the transposition of insulating single line, replaces the parallel structure of traditional high-speed line, improves cable compliance and resistant kink nature.

Description

High-speed transmission cable with double-twisted structure

Technical Field

The utility model belongs to the cable field, concretely relates to two high-speed transmission cable of twisted pair structure.

Background

At present, the fourth industrial revolution mainly based on artificial intelligence, 5G and cloud computing is coming rapidly, and the core for realizing the fourth industrial revolution is the application of big data. This places very high demands on the transmission speed between communication devices as the amount of data increases sharply, and high bandwidth and low attenuation are required for the cable. At present, high-speed transmission cables mainly comprise two types, namely a cable and an Active Optical Cable (AOC), and the active optical cable has relatively high cost and large power consumption, so that short-distance communication connection between equipment at present mainly comprises a copper cable.

At present, a signal line pair structure of a high-speed transmission cable (the transmission bandwidth is larger than 10GHz) is a parallel flat structure with a single-stranded conductor, the flexibility and bending resistance of the cable with the structure are relatively poor, the cable is not favorable for occasions with certain bending requirements in wiring and using processes, the application limitation is large, and the cable is not favorable for multi-scene application of a 5G technology. And the production efficiency of the parallel flat structure is low, the cost is high, the production speed of a single wire pair of a conventional product is generally 3 m/min, and the finished product efficiency is lower as the number of the wire pairs is more.

Disclosure of Invention

Not enough more than to, the utility model aims to solve the technical problem that a pair high-speed transmission cable of twisted structure is provided, also promoted the production efficiency of its bending performance and cable when satisfying high-speed transmission.

In order to solve the technical problems, the utility model adopts the technical proposal that,

the utility model provides a two high-speed transmission cable of twisted pair structure, includes conductor, insulating cover, ground wire, band layer and sheath subassembly, and insulating cover cladding forms insulating single line outside the conductor, and insulating single line and ground wire transposition form insulating heart yearn, and the cladding of band layer is in the outside of insulating heart yearn, and the sheath subassembly cladding is in the outside of band layer.

Furthermore, the belting layer comprises a metal belting and an insulating belting, the metal belting is coated on the outer side of the insulating core wire, and the insulating belting is coated on the outer side of the metal belting.

Furthermore, the metal wrapping tape is one of an aluminum foil mylar tape, a copper foil mylar tape, a hot-melt aluminum foil mylar tape or a hot-melt copper foil mylar tape, and the insulating wrapping tape is one of a polyester tape, a hot-melt polyester tape and a PTFE tape.

Further, the sheath subassembly includes weaving layer and restrictive coating, and the weaving layer cladding is in the outside on belting layer, and the restrictive coating cladding is in the outside of weaving layer.

Furthermore, the braided layer is formed by braiding tin-plated copper monofilaments.

Furthermore, the sheath layer is made of PVC material.

Further, the structure of the conductor is identical to that of the ground wire.

Furthermore, the conductor is formed by gluing single-stranded, 7-stranded or 19-stranded copper monofilaments, and the copper monofilaments are made of one of bare copper, coated copper-clad steel, coated copper-clad aluminum and coated alloy copper.

Furthermore, the height line comprises two insulated single lines and a ground wire, and the ground wire is arranged at the interval of the two insulated single lines.

Further, the insulating sleeve is one of PE, PP, FEP, PFA, ETFE and XLPE.

The beneficial effects of the utility model are that, (1) the signal transmission bandwidth of this structure can reach 20GHz and above, can replace conventional parallel structure high-speed cable in the performance.

(2) The double-twisted structure is used for replacing the traditional parallel structure of a high-speed line, and the flexibility and the bending resistance of the cable are improved.

(3) The metal shielding layer is wrapped by the inclined-angle bale, so that the transmission bandwidth is increased, the production speed can be increased to more than 12 m/min from 3 m/min of a conventional parallel structure, and the production efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of the structure of an insulated core wire.

Fig. 2 is a schematic diagram of the present high speed line configuration.

Reference numerals: conductor 1, insulating cover 2, ground wire 3, band layer 4, sheath subassembly 5, insulating single line 6, insulating heart yearn 7, metal band 8, insulating band 9, weaving layer 10, restrictive coating 11.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides a two high-speed transmission cable of twisted pair structure, including conductor 1, insulating cover 2, ground wire 3, band layer 4 and sheath subassembly 5, insulating cover 2 cladding is outside conductor 1, form insulating single line 6, insulating single line 6 and the 3 transposition of ground wire, form insulating heart yearn 7, the outside at insulating heart yearn 7 of 4 cladding of band layer, the outside at band layer 4 of sheath subassembly 5 cladding, through ground wire 3 and the 6 transposition of insulating single line, replace the parallel structure of traditional high-speed line, improve cable compliance and resistant bendability.

The belting layer 4 includes metal belting 8 and insulating belting 9, and the cladding of metal belting 8 is in the outside of insulating heart yearn 6, and the cladding of insulating belting 9 is in the outside of metal belting 8, through the setting of metal belting 8, insulating belting 9, is convenient for improve the performance of high-speed line, and preferably, metal belting 8 is one deck or multilayer.

The metal wrapping tape 8 is one of an aluminum foil mylar tape, a copper foil mylar tape, a hot-melt aluminum foil mylar tape or a hot-melt copper foil mylar tape, and the insulating wrapping tape 9 is one of a polyester tape, a hot-melt polyester tape and a PTFE tape.

Sheath subassembly 5 includes weaving layer 10 and restrictive coating 11, and the cladding of weaving layer 10 is in the outside of belting layer 4, and the cladding of restrictive coating 11 is in the outside of weaving layer 10.

The braided layer 10 is braided with tin-plated copper monofilament.

The sheath layer is made of PVC material.

The structure of the conductor 1 is consistent with that of the ground wire, the conductor is formed by gluing single-stranded, 7-stranded or 19-stranded copper monofilaments, the copper monofilaments are made of one of bare copper, coated copper-clad steel, coated copper-clad aluminum and coated alloy copper, and similarly, the ground wires 3 and the conductors 1 in the same high-speed wire are made of the same material and the number of the strands of the through monofilaments.

Including two insulating single lines 6 and a ground wire 3 in the height line, ground wire 3 places in the interval department of two insulating single lines 6, through with two insulating single lines 6, 3 transposition of a ground wire, replaces the parallel structure of traditional high-speed line, improves cable compliance and resistant bendability.

The insulating sleeve 2 is one of PE, PP, FEP, PFA, ETFE and XLPE.

The production steps of the high-speed wire are as follows,

(1) taking a stranded conductor twisted by single or a plurality of metal monofilaments as a conductor, and extruding a layer of insulating material outside the conductor to form an insulating single wire 6;

(2) then, the two insulated single wires 6 are twisted symmetrically through double strands to form twisted pairs, and a ground wire 3 is placed at the interval of the two insulated single wires during twisting to form an insulated core wire 7;

(3) a layer of metal wrapping tape 8 wraps the outer oblique angle of the insulating core wire 7, and a layer of insulating wrapping tape 9 wraps the outer layer of the metal wrapping tape 8;

(4) a layer of braided layer is added outside the insulating belting 9 in a braiding or winding mode;

(5) and extruding a sheath layer outside the woven layer.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a two twisted configuration high speed transmission cable, its characterized in that, including conductor (1), insulating cover (2), ground wire (3), band layer (4) and sheath subassembly (5), insulating cover (2) cladding is outside conductor (1), forms insulating single line (6), and insulating single line (6) and ground wire (3) transposition form insulating heart yearn (7), and the cladding of band layer (4) is in the outside of insulating heart yearn (7), and the cladding of sheath subassembly (5) is in the outside of band layer (4).

2. The twisted pair structure high-speed transmission cable according to claim 1, wherein the tape layer (4) comprises a metal tape (8) and an insulating tape (9), the metal tape (8) covers the outside of the insulating core (7), and the insulating tape (9) covers the outside of the metal tape (8).

3. The double-twisted structure high-speed transmission cable according to claim 2, wherein the metal wrapping tape (8) is one of an aluminum foil mylar tape, a copper foil mylar tape, a hot-melt aluminum foil mylar tape or a hot-melt copper foil mylar tape, and the insulating wrapping tape (9) is one of a polyester tape, a hot-melt polyester tape and a PTFE tape.

4. A twisted pair structure high-speed transmission cable according to claim 1, wherein the sheathing member (5) comprises a braid (10) and a sheath layer (11), the braid (10) being coated on the outer side of the belting layer (4), and the sheath layer (11) being coated on the outer side of the braid (10).

5. A twisted pair high speed transmission cable according to claim 4, wherein said braided layer (10) is braided from tin-plated copper monofilaments.

6. A twisted pair structure high-speed transmission cable according to claim 4, wherein the sheath layer (11) is made of PVC material.

7. A twisted pair structure high-speed transmission cable according to claim 1, wherein the structure of the conductor (1) is identical to that of the ground line (3).

8. The twisted pair structure high-speed transmission cable according to claim 7, wherein the conductor (1) is formed by gluing single, 7 or 19 copper monofilaments, and the copper monofilaments are made of one of bare copper, coated copper-clad steel, coated copper-clad aluminum and coated alloy copper.

9. A twisted pair structure high-speed transmission cable according to claim 1, wherein said insulated core wire (7) includes two insulated single wires (6) and a ground wire (3), and the ground wire (3) is placed at a space between the two insulated single wires (6).

10. A twisted pair construction high speed transmission cable according to claim 1, wherein the insulation jacket (2) is one of PE, PP, FEP, PFA, ETFE, XLPE.

Images