CN214226609U - Double-shielding network cable - Google Patents

Abstract

The utility model discloses a double-shielded net twine through being provided with first shielding layer and second shielding layer at the overcoat inlayer, can effectively avoid outside electromagnetic interference to enter into the net twine in to the paired line production disturb. And, the utility model discloses a double-shielded net twine separates four pairs of paired lines through setting up the cross skeleton, can avoid the mutual interference between the net twine paired line, has increased the pair interference killing feature. Meanwhile, aiming at the problem that the twisted-pair line twisted by green and white lines is easy to interfere, the thickness of a partition wall of the cross-shaped framework close to the twisted-pair line twisted by green and white lines is increased, and the anti-interference effect of the twisted-pair line twisted by green and white lines is further improved. Therefore, the utility model relates to a double-shielded net twine has the effectual advantage of anti-interference.

Description

Double-shielding network cable

Technical Field

The utility model relates to a network communication wiring technical field especially relates to a strong single screen of interference killing feature covers net twine.

Background

And in the use site of the network cable, the two ends of the network cable are connected with the water crystal heads or the information modules. Due to the structural limitation of the crystal head and the information module, when the network cable is terminated with the crystal head or the information module, the green-white line pair and the green-white line pair are separated, so that the green-white line pair and the green-white line pair become the most susceptible line pair.

Therefore, there is a need for an improvement to overcome the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art, providing a single shield net twine that interference killing feature is strong.

The technical scheme of the utility model is that:

a double-shielding network cable comprises an outer sheath, a first shielding layer, a second shielding layer, four twisted pairs and a cross framework; the outer sheath, the first shielding layer and the second shielding layer form an accommodating protection structure, an accommodating space is formed in the accommodating protection structure, and the four twisted pairs and the cross-shaped framework are wrapped in the accommodating space by the accommodating protection structure; the outer sheath wraps the first shielding layer, and the first shielding layer wraps the second shielding layer; the four twisted pairs are respectively orange white wire and orange wire twisted, green white wire and green wire twisted, blue white wire and blue wire twisted, brown white wire and brown wire twisted; the cross-shaped framework comprises four partition walls, the cross-shaped framework divides the accommodating space into four parts, and the four twisted pairs are respectively arranged in the four parts of the accommodating space; the thickness of two adjacent partition walls of the twisted pairs of the green white lines and the green lines is larger than that of the other two partition walls.

As a preferred technical scheme, the cross-shaped framework is made of a high-molecular polymer material.

As a preferred technical solution, the central conductor of the four twisted pairs is a single copper conductor or a multi-strand copper conductor.

In a preferred embodiment, the thickness of the thickest partition wall in the cross frame is 1.2 times or more the thickness of the thinnest partition wall.

As a preferred technical scheme, the outer sheath is a polyvinyl chloride protective sheath or a polyethylene protective sheath or a low-smoke chlorine-free protective sheath.

As a preferred technical solution, the shielding layer is shielding aluminum foil paper.

As a preferable technical scheme, shielding sheaths are arranged outside the twisted pairs of the orange white wire and the orange wire, the green white wire and the green wire, the blue white wire and the blue wire, and the brown white wire and the brown wire.

As a further preferable technical solution, the first shielding layer is a copper mesh braided shielding layer.

As a preferable technical solution, a tear string is disposed between the first shielding layer and the outer sheath.

The utility model discloses a double-shielded net twine is provided with first shielding layer and second shielding layer at the overcoat inlayer, can effectively avoid outside electromagnetic interference to enter into the net twine in to the paired line production disturb. Moreover, the four twisted pairs are separated by the cross skeleton, so that mutual interference among the network cable twisted pairs can be avoided, and the anti-interference capability of the network cable pairs is improved. Meanwhile, aiming at the problem that the twisted-pair line twisted by green and white lines is easy to interfere, the thickness of a partition wall of the cross-shaped framework close to the twisted-pair line twisted by green and white lines is increased, and the anti-interference effect of the twisted-pair line twisted by green and white lines is further improved. Therefore, the utility model relates to a double-shielded net twine has the effectual advantage of anti-interference.

Drawings

Fig. 1 is a cross-sectional view of a specific embodiment of the double-shielded cable of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

As shown in fig. 1, it is a specific embodiment of the double-shielded cable of the present invention. The double-shielding mesh wire of the embodiment comprises an outer sheath 1, a first shielding layer 4, a second shielding layer 5, a cross-shaped framework 2 and four twisted pairs 3. The outer sheath 1, the first shielding layer 4 and the second shielding layer 5 constitute a structure for accommodating and protecting the double-shielded network cable according to the embodiment. An accommodating space is arranged in the accommodating protection structure, and the four twisted pairs 3 and the cross-shaped framework 2 are wrapped in the accommodating space by the accommodating protection structure. The second shielding layer 5 is the innermost layer of the accommodating protection structure, and four twisted pairs 3 and a cross framework 2 are wrapped inside the second shielding layer. The outside of second shielding layer 5 is first shielding layer 4, and the outside of first shielding layer 4 is oversheath 1, and the double shielding layer design of first shielding layer 4 and second shielding layer 5 can improve shielding effect, avoids external interference. The utility model relates to an inner layer of oversheath 1 of double-shielded net twine is provided with first shielding layer 4 and second shielding layer 5 and can effectively avoid outside electromagnetic interference to enter into the net twine in to the paired line production disturb. As shown in the drawings, in the double-shielded mesh cable of the present embodiment, the cross-shaped frame 2 includes four partition walls 21, the four partition walls 21 partition the accommodating space in the outer sheath 1 into four parts, and the four twisted pairs 3 are respectively disposed in the four parts of the accommodating space. The four twisted pairs are respectively orange white wire and orange wire twisted, green white wire and green wire twisted, blue white wire and blue wire twisted, and brown white wire and brown wire twisted. As shown in fig. 1, the thickness of the two partition walls 21 adjacent to the twisted pair 31 in which the green white line and the green line are twisted is larger than the thickness of the remaining two partition walls. The design can change the pair-to-pair crosstalk of the twisted pair 31 with the green and white lines and the green line to other twisted pairs, and also can avoid the pair-to-pair crosstalk of the twisted pair 31 with the green and white lines from other twisted pairs, so that the network has better transmission performance.

In order to facilitate the processing and reduce the weight increase of the cross skeleton to the net thread, as a preferable scheme, in practical application, the cross skeleton 2 may be a high molecular polymer material.

In the present embodiment, in order to ensure the transmission effect of the network signal, the central conductors of the four twisted pairs 3 are single copper conductors or stranded copper conductors.

To facilitate the processing of the cross frame 2, in practical applications, the two partition walls 21 near the twisted pairs of green and white lines may have the same thickness, and the two partition walls far from the twisted pairs of green and white lines may have the same thickness. Of course, in practical applications, the thicknesses of the four partition walls 21 may be set to be different according to practical requirements, as long as the thicknesses of the two partition walls 21 close to the twisted pair 31 where the green and white lines are twisted are both greater than the thicknesses of the two partition walls 21 away from the twisted pair 31 where the green and white lines are twisted.

In order to ensure the effect of increasing the space between the twisted pair 31 twisted by green and white lines and the other twisted pair, the twisted pair 31 twisted by green and white lines is effectively separated from the other twisted pair, and preferably, the thickness of the thickest partition wall 21 among the four partition walls 21 of the cross frame 2 is 1.2 times or more of the thickness of the thinnest partition wall 21.

In practical application, the outer sheath 1 may be a polyvinyl chloride sheath or a polyethylene sheath or a low-smoke chlorine-free sheath.

Preferably, the second shielding layer 5 is shielding aluminum foil paper, and the shielding aluminum foil paper 5 wraps the twisted-pair cable and the cross-shaped frame inside in a whole circle. The shielding aluminum foil 5 can reduce the weight while ensuring the shielding effect. In practical application, the shielding sheath 7 wrapping the twisted pair may also be aluminum foil paper, and the shielding sheath 7 made of aluminum foil paper wraps the twisted pair inside the aluminum foil paper in a complete circle.

As shown in fig. 1, a shielding sheath 7 is disposed outside each pair of twisted pairs 3, the shielding sheath 7 wraps and accommodates the twisted pairs, and the shielding sheath 7 can further prevent external interference from entering the twisted pairs to generate interference on network cable signals.

In practical application, the first shielding layer 4 may be a copper mesh braided shielding layer, and the strength of the accommodating protection structure is ensured while the shielding effect of the copper mesh braided shielding layer is ensured.

In practical applications, in order to improve the stretch-resistant performance of the accommodating protection structure, as shown in fig. 1, a tearing rope 6 is disposed between the first shielding layer 4 and the outer sheath 1.

According to the double-shielding network cable, the first shielding layer and the second shielding layer are arranged on the inner layer of the outer sheath, so that external electromagnetic interference can be effectively prevented from entering the network cable to generate interference on the twisted pair, and the shielding sheaths are respectively arranged outside each pair of twisted pair to further shield the external electromagnetic interference. Moreover, the four twisted pairs are separated by the cross skeleton, so that mutual interference among the network cable twisted pairs can be avoided, and the anti-interference capability of the network cable pairs is improved. Meanwhile, aiming at the problem that the twisted-pair line twisted by green and white lines is easy to interfere, the thickness of a partition wall of the cross-shaped framework close to the twisted-pair line twisted by green and white lines is increased, and the anti-interference effect of the twisted-pair line twisted by green and white lines is further improved. Therefore, the utility model relates to a double-shielded net twine has the effectual advantage of anti-interference.

In summary, the preferred embodiments of the present invention are only described, and the scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.

Claims (9)

1. A double-shielding net wire is characterized in that: the shielding cable comprises an outer sheath, a first shielding layer, a second shielding layer, four pairs of twisted-pair wires and a cross framework; the outer sheath, the first shielding layer and the second shielding layer form an accommodating protection structure, an accommodating space is formed in the accommodating protection structure, and the four twisted pairs and the cross-shaped framework are wrapped in the accommodating space by the accommodating protection structure; the outer sheath wraps the first shielding layer, and the first shielding layer wraps the second shielding layer; the four twisted pairs are respectively orange white wire and orange wire twisted, green white wire and green wire twisted, blue white wire and blue wire twisted, brown white wire and brown wire twisted; the cross-shaped framework comprises four partition walls, the cross-shaped framework divides the accommodating space into four parts, and the four twisted pairs are respectively arranged in the four parts of the accommodating space; the thickness of two adjacent partition walls of the twisted pairs of the green white lines and the green lines is larger than that of the other two partition walls.

2. The double-shielded network cable of claim 1, wherein: the cross-shaped framework is made of high molecular polymer materials.

3. The double-shielded network cable of claim 1, wherein: the central conductors of the four twisted pairs are single copper conductors or multi-strand copper conductors.

4. The double-shielded network cable of claim 1, wherein: the thickness of the thickest partition wall in the cross-shaped skeleton is 1.2 times or more of the thickness of the thinnest partition wall.

5. The double-shielded network cable of claim 1, wherein: the oversheath is polyvinyl chloride protective sheath or polyethylene protective sheath or low smoke chlorine-free protective sheath.

6. The double-shielded network cable of claim 1, wherein: the second shielding layer is shielding aluminum foil paper.

7. The double-shielded network cable of claim 1, wherein: and shielding sheaths are arranged outside the twisted pairs formed by twisting the orange white wires and the orange wires, twisting the green white wires and the green wires, twisting the blue white wires and the blue wires and twisting the brown white wires and the brown wires.

8. The double-shielded network cable of claim 1, wherein: the first shielding layer is a copper mesh braided shielding layer.

9. The double-shielded network cable of claim 1, wherein: a tearing rope is arranged between the first shielding layer and the outer sheath.

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