CN209149870U - A kind of 5 pair of 8 core composite construction flexible shielded cable - Google Patents

Abstract

A 5-to-8-core composite structure flexible shielded cable, which is sequentially provided with a non-woven wrapping tape, a tinned copper thin wire shielding layer and a PVC flexible elastomer sheath outside the cable core, and the tinned copper thin wire is shielded. A drain wire is placed in parallel in the layer, and the cable core is composed of 5 pairs of data transmission wire pairs and 4 pairs of control signal wire cores. A pair of data transmission lines are respectively provided in the upper, lower, left and right places of the middle pair of data transmission lines in a cross-shaped structure, and between the four pairs of data transmission lines on the periphery of the middle pair of data transmission lines are respectively provided with a pair of control signal lines cores, each pair of control signal wire cores is vertically arranged with the middle pair of data transmission wire pairs. The effect is: good flexibility, good anti-interference effect inside the cable, easy processing and manufacturing of the cable, low processing cost of the cable, and obvious competitive advantage with the peers.

Description

A 5-to-8-core composite structure flexible shielded cable

technical field

The utility model relates to a 5-to-8-core composite structure flexible shielded cable, which is used for an anti-interference electrical control system for electronic signal and data transmission in places with high industrial automation control, narrow wiring space and frequent movement and bending.

Background technique

Under the background of the rapid development of electronic communication and the compact and compact integrated wiring, the small space wiring is prominent, and the internal cable wiring of some automatic industrial control equipment is becoming more and more important, such as the integrated use of sound and light alarm equipment, electronic signal devices and communication transmission equipment. The special cable structure is compounded together. At present, there are various forms of composite structure cables, and the combination of electronic signal lines with different numbers of pairs and different cores emerges as the times require. In terms of structure selection, the single-core electronic lines are usually twisted for flexibility, and the center of the cable core is made of cotton. If the material is filled with other materials, this structure will increase the overall outer diameter of the cable a lot, and the appearance of the cable is not easy to be rounded. In addition, the single-core electronic core is placed in the center of the cable core, and the outer layer is arranged with twisted pairs, which results in asymmetrical arrangement of the cores and poor flexibility of the cable.

SUMMARY OF THE INVENTION

In view of the current market requirements for cable use and the shortcomings of the existing technology, the utility model provides a 5-to-8-core composite structure flexible shielded cable, where one pair of data transmission lines is placed in the center of the cable core, and four pairs of data transmission lines are placed in the center of the cable core. It is arranged symmetrically with the four pairs of control signal cores, so that the outer diameter of the cable is reduced, and the flexibility requirements are met at the same time, which is more suitable for the requirements of flexible wiring in narrow spaces.

In order to achieve the above purpose, the technical scheme adopted by the utility model is: a 5-to-8-core composite structure flexible shielded cable, which is characterized in that it comprises a cable core, a non-woven wrapping tape, a tinned copper thin wire shielding layer, Drain wire, PVC flexible elastomer sheath;

A non-woven wrapping tape, a tinned copper thin wire shielding layer and a PVC flexible elastomer sheath are sequentially arranged outside the cable core, and a drain wire is placed in parallel and vertically inside the tinned copper thin wire shielding layer;

The cable core is composed of 5 pairs of data transmission wire pairs and 4 pairs of control signal wire cores;

The specific arrangement structure of the 5 pairs of data transmission lines and the 4 pairs of control signal cores is as follows: in the upper, lower, left and right places of the middle pair of data transmission lines, a pair of data transmission lines are respectively arranged in a cross-shaped structure, and a pair of data transmission lines in the middle A pair of control signal wire cores are respectively arranged between the four outer pairs of data transmission wire pairs, and each pair of control signal wire cores is vertically arranged with the middle pair of data transmission wire pairs.

The beneficial effects of the present utility model are:

1. Good flexibility: place 1 pair of data transmission wire pairs in the center of the cable core, 4 pairs of data transmission wire pairs in the outer layer, and 1 pair of control signal wire cores between each pair of gaps in the outer layer, arranged in a symmetrical structure , Whether it is a local pair or the entire cable, the design adopts a small twisted wire pitch scheme in the stranded part, and the sheath material adopts a high-flexibility elastic material, and the overall flexibility of the cable is good.

2. Good anti-interference effect inside the cable: The data transmission line pair adopts the standard design of the communication line, the insulating sheath is made of high-purity wear-resistant polypropylene material, the data transmission signal attenuation loss is low, the bending strength is high when bending, and it is suitable for moving Bend repeatedly. The tinned copper monofilament has a very thin wire diameter, and is covered on the outside of the cable core by braiding, so that the shielding of the cable core has a high degree of anti-electromagnetic interference inside and outside.

3. The cable is easy to process and manufacture: the entire cable processing process is simple and easy, no need to add special high-precision equipment, the cable processing cost is low, and the competitive advantage with the peers is obvious.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

FIG. 2 is a schematic structural diagram of a data transmission line pair of the present invention.

Detailed ways

As shown in Figure 1, a 5-to-8-core composite structure flexible shielded cable includes cable core 1, non-woven wrapping tape 2, tinned copper thin wire shielding layer 3, drain wire 4, PVC flexible elastic Body Sheath 5.

Outside the cable core 1, a non-woven wrapping tape 2, a tinned copper thin wire shielding layer 3 and a PVC flexible elastomer sheath 5 are arranged in sequence, and a tinned copper thin wire shielding layer 3 is placed in parallel and vertically. Drain wire 4.

The cable core 1 is composed of 5 pairs of data transmission wire pairs 1-1 and 4 pairs of control signal wire cores 1-2.

The specific arrangement structure of the 5 pairs of data transmission line pairs 1-1 and the 4 pairs of control signal cores 1-2 is as follows: a pair of data transmission line pairs 1-1 are respectively provided in the upper, lower, left, and right places of the middle pair of data transmission line pairs 1-1. It has a cross-shaped structure. Between the four pairs of data transmission lines 1-1 on the periphery of the middle pair of data transmission lines 1-1, a pair of control signal cores 1-2 are respectively provided, and each pair of control signal cores 1-2 Set vertically with the middle pair of data transmission line pair 1-1).

The data transmission line pair 1-1 is composed of two insulated core wires with the same structure, and each insulated core wire is composed of several copper conductors 1-1-1 with a layer of polypropylene material insulating sheath 1-1-2 outside.

The control signal wire core 1-2 is composed of two control signal wires of the same structure.

The utility model can be manufactured by the following technological process and processing equipment: extruding high-purity solid-core thin-walled polycake olefin as an insulating layer to form an insulating core wire by extruding several copper conductors 1-1-1 external cable extrusion equipment Ф50, and 2 The insulated core wires of different colors are twisted into the data transmission line pair 1-1 with a small pitch of 20mm through the twisting machine, and the data transmission line pair 1-1 of different colors is ready for twisting. After it is out, it will be ready for cable use.

5 pairs of data transmission lines 1-1 and 4 pairs of control signal cores 1-2, on the untwisting and cabling machine in the order of the cross-sectional diagram to form the cable core 1, and the cabling pitch value satisfies 8 times the cabling. The diameter of the rear cable core, the cabling pitch is much smaller than the ordinary cabling pitch (10 times the pitch ratio), and the non-woven wrapping tape 2 is wrapped around the cable core 1. The outer surface of the woven wrapping tape 2 is braided by a braiding machine for the shielding layer 3 of tinned copper thin wires. The diameter of the braided monofilament is 0.1 to 0.12 mm, and the braiding angle is about 45.0. -1 The drain wire 4 of the same structure is tightly and softly braided; outside the braided shielding layer, a layer of PVC flexible elastomer sheath 5 is covered with Ф90 equipment. The sheath is made of extrusion die, which is round and smooth. Uniform size. The cable's model specification and other identifications are printed on the surface of the sheath, and the cable is completed.

The embodiment of the present invention is only an example description. It is not limited to 5 pairs of 8 cores alone, and other similar composite cable structures can be implemented in the above-mentioned specific manner. Under the inspiration of the present utility model, those skilled in the art, on the premise of not departing from the scope of the present utility model and the protection of the claims, the size of the conductor of the cable, the number of twisted pairs and cores, the size of the wire diameter Factors such as adjustment can be extended outwards. The key is the use of the small pitch of the twist, the arrangement on the design structure, and the weaving process. These aspects are the core points of the present invention and belong to the protection scope of the present invention.

Claims (2)

1. a kind of 5 pair of 8 core composite construction flexible shielded cable, it is characterised in that: including cable core (1), non-woven fabrics twining package tape (2), tin-coated copper filament shielded layer (3), drain wire (4), polyvinyl chloride flexible elastomer sheath (5)；

It is flexible that non-woven fabrics twining package tape (2), tin-coated copper filament shielded layer (3) and polyvinyl chloride are successively arranged outside the cable core (1) Elastic body jacket (5) puts a drain wire (4) in tin-coated copper filament shielded layer (3) interior parallel longitudinal；

The cable core (1) is made of (1-1) and 4 pairs of control signal wire cores (1-2) 5 pairs of data lines；

Specific arrangement architecture of 5 pairs of data lines to (1-1) and 4 pairs of control signal wire cores (1-2) are as follows: in intermediate a pair of of data Transmission line is respectively equipped with a pair of of data line to (1-1) in cross-shaped structure, in centre to (1-1) up and down everywhere A pair of of data line to four pairs of data lines of the periphery (1-1) to (1-1) between, be respectively equipped with a pair of control signal wire Core (1-2), each pair of control signal wire core (1-2) are vertically arranged (1-1) with intermediate a pair of of data line.

2. a kind of 5 pair of 8 core composite construction flexible shielded cable according to claim 1, it is characterised in that: the data pass Defeated line is made of (1-1) mutually isostructural two insulation core wires, and every insulation core wire is externally provided with by several copper conductors (1-1-1) One layer polypropylene insulated with material sheath (1-1-2) is constituted.