CN212256985U - High-flexibility industrial Ethernet super-five-type shielding data symmetrical cable - Google Patents

Abstract

The utility model relates to a cable, in particular to a high-flexibility industrial Ethernet super-five type shielding data symmetrical cable, which comprises four wires; the four wires are spirally and symmetrically stranded around the tensile rod; the four wires are positioned inside the inner sheath layer; a first shielding layer located outside the inner jacket layer; a second shielding layer located outside the first shielding layer; an outer jacket layer located outside the second shielding layer. The utility model provides a high flexibility industrial ethernet surpasses five types of shielding data symmetrical cable flexibility good, tensile, sinle silk position stability, the difficult string position of sinle silk, deformation, long service life.

Description

High-flexibility industrial Ethernet super-five-type shielding data symmetrical cable

Technical Field

The utility model relates to a cable, especially high flexible industrial ethernet surpasses five types of shielded data symmetrical cable.

Background

In the communication of some moving parts, it is desirable that the cable be able to withstand tension and maintain good performance in frequent bending applications, such as the cables used in drag chains, following repeated twisting of the drag chain. After the existing cable is used for a long time, signals cannot be normally transmitted due to twisting, deformation and serial positions of wire cores. Due to the pulling of the drag chain, the tensile capacity of the cable is not required, resulting in cable breakage.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a flexibility is good, tensile, sinle silk position stability, the difficult string position of sinle silk, deformation, long service life's super five types of shield data symmetrical cable of high flexibility industrial ethernet, and concrete technical scheme is:

the high-flexibility industrial Ethernet super-five-type shielded data symmetrical cable comprises four leads; the four wires are spirally and symmetrically stranded around the tensile rod; the four wires are positioned inside the inner sheath layer; a first shielding layer located outside the inner jacket layer; a second shielding layer located outside the first shielding layer; an outer jacket layer located outside the second shielding layer.

Through adopting above-mentioned technical scheme, four wires transposition at the outer disc of tensile stick, the tensile strength of cable has been improved promptly to the tensile stick, makes simultaneously can not cluster the position between the four wires, has guaranteed the stability and the rounding of cable structure, makes the balanced unanimous atress of four wires, and the condition that frequently moves outside makes the wire receive mechanical external force's horizontal, longitudinal effect influence less.

The inner sheath layer wraps the four wires, so that the wires are stable in structure.

The two shielding layers ensure the shielding effect.

Further, the wire includes conductor and insulating layer, the insulating layer is located the outside of conductor, the conductor includes the tinned copper wire of many transposition, the diameter of copper wire is 0.16 +/-0.004 mm, the diameter of wire is 1.57 +/-0.02 mm, the insulating layer is the PE layer.

Further, the inner sheath layer is an extrusion type sheath layer.

Through adopting above-mentioned technical scheme, extrusion formula inner sheath layer is when cable outward appearance is round and complete, fills up the space between wire and the inner sheath layer totally, makes the cable core of cable tend towards the firm. In the use process of the high frequency of the drag chain, deformation or core wire serial position can not occur due to frequent distortion, and the cable can be effectively ensured to normally transmit data signals.

Further, the first shielding layer is an aluminum foil layer, and the shielding overlapping rate of the aluminum foil is not less than 25%.

By adopting the technical scheme, the overlapping rate is not less than 25%, namely after the cable core is wrapped and covered by 100% of the aluminum foil, the overlapping rate of 25% is also equal to the overlapping rate of not less than 125%, and the shielding effect is improved.

Further, the second shielding layer is a tinned copper braid layer, and the shielding coverage rate of the second shielding layer is not less than 85%.

Further, the outer sheath layer is a PU layer.

Further, still include around the covering, it is located between second shielding layer and the oversheath layer around the covering.

Through adopting above-mentioned technical scheme, can stabilize cable core structure around the covering, be difficult for receiving the influence of removal, the sheath of being convenient for simultaneously is opened the skin.

Further, the diameter of the inner sheath layer is 4.6 +/-0.3 mm; the thickness of oversheath layer is 0.7mm, the diameter of oversheath layer is 6.5 ± 0.3 mm.

Further, the tensile rod is a PA round rod.

By adopting the technical scheme, the tensile strength of the PA round rod is extremely strong.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model provides a high flexibility industrial ethernet surpasses five types of shielding data symmetrical cable flexibility good, tensile, sinle silk position stability, the difficult string position of sinle silk, deformation, long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

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

Example one

As shown in fig. 1, the high-flexibility industrial ethernet super-five-type shielded data symmetrical cable comprises four wires; the four-conductor cable is characterized by also comprising a tensile bar 8, wherein four conductors are spirally and symmetrically twisted around the tensile bar 8; the inner sheath layer 3 is provided with four wires inside; the first shielding layer 4, the first shielding layer 4 is positioned outside the inner sheath layer 3; a second shielding layer 5, the second shielding layer 5 being located outside the first shielding layer 4; and an outer sheath layer 7, wherein the outer sheath layer 7 is positioned outside the second shielding layer 5.

The four wires are stranded on the outer circular surface of the tensile bar 8, the tensile bar 8 improves the tensile strength of the cable, and meanwhile, the four wires cannot be connected in series, so that the stability and the roundness of the cable structure are ensured, the four wires are stressed uniformly, and the wires are less influenced by the transverse and longitudinal actions of mechanical external force under the condition of frequent external movement.

The inner sheath layer 3 wraps the four wires, so that the wires are stable in structure.

The two shielding layers ensure the shielding effect.

Specifically, the wire includes conductor 1 and insulating layer 2, and insulating layer 2 is located the outside of conductor 1, and conductor 1 includes the tinned copper wire of many transposition, and the diameter of copper wire is 0.16 +/-0.004 mm, and the diameter of wire is 1.57 +/-0.02 mm, and insulating layer 2 is the PE layer. The thin copper wires can improve the flexibility of the lead.

The inner sheath layer 3 is an extrusion type sheath layer. Extrusion formula inner sheath layer 3 is when cable outward appearance is round, with the space between wire and the inner sheath layer 3 whole filling up, makes the cable core of cable tend towards firm. In the use process of the high frequency of the drag chain, deformation or core wire serial position can not occur due to frequent distortion, and the cable can be effectively ensured to normally transmit data signals.

The first shielding layer 4 is an aluminum foil layer, and the shielding overlapping rate of the aluminum foil is not less than 25%. The overlapping rate is not less than 25%, namely after the aluminum foil is wrapped by 100% to cover the cable core, the overlapping rate of 25% is also obtained, namely the overlapping rate is not less than 125%, and the shielding effect is improved.

The second shielding layer 5 is a tinned copper braid layer, and the shielding coverage rate of the second shielding layer 5 is not less than 85%.

The outer sheath layer 7 is a PU layer.

The tensile bar 8 is a round bar made of PA material.

The diameter of the inner sheath layer 3 is 4.6 mm plus or minus 0.3 mm; the thickness of the outer sheath layer 7 is 0.7mm, and the diameter of the outer sheath layer 7 is 6.5 +/-0.3 mm.

Example two

On the basis of the above embodiment, still include around covering 6, around covering 6 being located between second shielding layer 5 and oversheath layer 7. Can stabilize cable core structure around covering 6, be difficult for receiving the influence of removal, the sheath of being convenient for simultaneously is opened the skin.

Mechanical properties:

the use temperature is as follows: -40 ℃ to +80 ℃;

the tensile strength of the outer sheath is not less than 10.3 MPa;

the elongation at break of the outer sheath is not less than 100%;

the outer sheath aging condition is 113 +/-2 ℃ for 168 hours;

outer sheath tensile strength after aging: not less than 70% before aging;

elongation at break of the outer sheath after aging: not less than 50% before aging;

electrical properties:

working capacitance ≦ 5.6nF/100m (@1 kHz);

capacitance-to-ground imbalance ≦ 160pF/100 m;

propagation velocity 65%;

the propagation delay difference is ≦ 45ns/100 m;

maximum conductor DC resistance 145 Ω/km (@20 ℃);

the maximum conductor dc resistance is unbalanced by 2%;

minimum insulation resistance 5000 M.OMEGA.m.

Maximum operating voltage-UL: 300V.

Mechanical performance requirements of the test:

transmission performance:

Claims (9)

1. the high-flexibility industrial Ethernet super-five-type shielded data symmetrical cable comprises four leads; it is characterized in that the preparation method is characterized in that,

also comprises

The four wires are spirally and symmetrically twisted around the tensile rod;

the four wires are positioned inside the inner sheath layer;

a first shielding layer located outside the inner jacket layer;

a second shielding layer located outside the first shielding layer;

an outer jacket layer located outside the second shielding layer.

2. The high flexibility industrial ethernet category-fifteen shielded data symmetric cable according to claim 1, wherein the conductor comprises a conductor and an insulating layer, the insulating layer is located on the outer side of the conductor, the conductor comprises a plurality of stranded tinned copper wires, the diameter of the copper wires is 0.16 ± 0.004mm, the diameter of the conductor is 1.57 ± 0.02mm, and the insulating layer is a PE layer.

3. The high-flexibility industrial ethernet extra-five type shielded data symmetric cable according to claim 1, wherein the inner sheath layer is an extruded sheath layer.

4. The high flexibility industrial ethernet over fifteen types of shielded data symmetric cable of claim 1, wherein the first shielding layer is an aluminum foil layer, and the shielding overlap ratio of the aluminum foil is not less than 25%.

5. The high-flexibility industrial ethernet super-five-type shielded data symmetric cable according to claim 1, wherein the second shielding layer is a tin-plated copper braid, and the shielding coverage of the second shielding layer is not less than 85%.

6. The highly flexible industrial ethernet extra-five type shielded data symmetric cable according to claim 1, wherein said outer sheath layer is a PU layer.

7. The highly flexible industrial ethernet category-five shielded data symmetric cable according to claim 1, further comprising a wrapping layer, said wrapping layer being located between the second shielding layer and the outer sheath layer.

8. The high flexibility industrial ethernet extra-five type shielded data symmetric cable according to claim 1, wherein the diameter of said inner sheath layer is 4.6 ± 0.3 mm; the thickness of oversheath layer is 0.7mm, the diameter of oversheath layer is 6.5 ± 0.3 mm.

9. The high flexibility industrial ethernet extra-five type shielding data symmetric cable according to claim 1, wherein said tensile bar is a PA round bar.

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