CN209947520U - Six-type non-shielding network cable - Google Patents

Abstract

The utility model discloses a six types of non-shielding net twines relates to data cable technical field. The utility model comprises a network cable body and four groups of non-shielding line groups, wherein the cross section of the network cable body is a four-wing butterfly shape, the network cable body comprises four butterfly wings which are uniformly distributed around the center of the butterfly section, the butterfly wings are arc-shaped bulges extending towards the direction far away from the center of the butterfly section, and the connecting positions between the adjacent butterfly wings are sunken towards the center of the butterfly section; the four groups of the non-shielding line groups are respectively arranged in the four butterfly wings, and the non-shielding line groups and the network cable body extend in the same direction. The utility model discloses need not to set up the cross, have good crosstalk performance, saved the production technology and the cost of net twine, reduced the net twine external diameter, have higher stability.

Description

Six-type non-shielding network cable

Technical Field

The utility model relates to a data cable technical field, concretely relates to six types of non-shielding net twines.

Background

The six types of unshielded network cables are used for the Ethernet of gigabit transmission in a physical layer, are mainly applied to systems of intelligent buildings or intelligent families, have the highest transmission bandwidth of 250MHz, and can stably transmit the gigabit Ethernet.

In the prior art, a six-type non-shielding mesh wire uses a copper core wire with a copper core diameter of 0.575mm as a transmission carrier. The six types of unshielded mesh wires typically comprise four sets of unshielded wires, each set comprising two copper core wires. In order to solve the crosstalk problem of the non-shielded wire set in the transmission process, six types of non-shielded wires in the prior art adopt a cross structure. The specific structure is that the cross is adopted to divide the interior of the cylindrical wire into four cavities, four groups of non-shielding wire sets are respectively arranged in the four cavities, and enough space is reserved between the four groups of non-shielding wire sets, so that the four groups of non-shielding wire sets are isolated, and the problem of crosstalk between the non-shielding wire sets is solved.

The six types of non-shielding mesh wires in the structure have the following defects: first, this will undoubtedly increase the process and material costs of the mesh wire production, due to the need to install the cross inside the mesh wire. Secondly, because the cross is installed, the outer diameter of the net wire reaches 6.8mm, so that the net wire needs a larger bending radius when being bent, and inconvenience is brought to the actual construction process. Thirdly, in the actual use process, the network cable is slightly bent, and the crosstalk phenomenon often occurs, that is, the stability of the six types of non-shielded network cables in the prior art is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a six-type non-shielding network cable. The utility model discloses need not to set up the cross, have good crosstalk performance, saved the production technology and the cost of net twine, reduced the net twine external diameter, have higher stability.

The utility model relates to a six types of non-shielding net twines, including net twine body and four groups of non-shielding group, the cross section of net twine body is four wing butterflies, four wing butterflies include four butterfly wings that encircle butterfly cross-section center and evenly arrange, the butterfly wing is the arc arch of extending to the direction of keeping away from butterfly cross-section center, the hookup location between the adjacent butterfly wing is sunken to butterfly cross-section center; the four groups of the non-shielding line groups are respectively arranged in the four butterfly wings, and the non-shielding line groups and the network cable body extend in the same direction.

Preferably, the non-shielding wire group is two copper core wires twisted with each other, and each copper core wire comprises a copper core and an HDPE insulating layer coated outside the copper core.

Preferably, a tensile rope extending in the same direction as the net wire body is arranged in the butterfly wing.

Preferably, the tensile strand is a glass fiber mat.

Preferably, the distance between the outermost sides of the two opposite wings is 5 mm.

Preferably, the middle part of the net twine body is provided with a first cavity which extends in the same direction as the net twine body and is communicated with the net twine body, a steel wire is arranged in the first cavity in a penetrating mode, and the steel wire is exposed out of two ends of the net twine body.

Preferably, the middle part of the net twine body is provided with a second cavity extending in the same direction as the net twine body, phosphated steel wires penetrate through the second cavity, and the outer surface of the net twine body is made of PE materials.

Preferably, the four-wing butterfly shape is a centrosymmetric figure, the butterfly wings are petal-shaped, and the central lines of adjacent butterfly wings are mutually perpendicular.

A six types of non-shielding net twines, its advantage lies in:

1. the cross section of the six types of non-shielding net cables of the utility model is a four-wing butterfly shape, and four non-shielding wire groups are respectively arranged in four butterfly wings. Because the non-shielding group sets up four directions at the net twine body respectively, is favorable to prolonging the distance between the non-shielding group, compares in columniform net twine structure, the utility model discloses a spacing between the non-shielding group is bigger, has better crosstalk and interference killing feature, still has good stability. Because no cross is needed, no cross is needed to be produced and installed, and the production process and the material cost are greatly saved. Due to the adoption of the four-wing butterfly-shaped structure, on the premise of good crosstalk prevention performance, the external size of the network cable body can be reduced, so that the bending radius of the six types of non-shielding network cables is small, and the six types of non-shielding network cables are more convenient to lay the cables.

2. Each non-shielding wire set comprises two copper core wires, each copper core wire comprises a copper core and an HDPE insulating layer coated outside the copper core, and the HDPE material is high in insulating dielectric strength and has good insulating performance.

3. Two copper core wires in the same unshielded wire group need to be twisted to form a twisted pair when being installed. The tensile rope and the net wire body extend in the same direction, and the tensile rope is a glass fiber cluster. The tensile ropes are used for enhancing the capability of the net wire body to resist deformation in the axial direction.

4. The utility model discloses a with the structure of non-shielding group setting in the butterfly wing, discover in the actual test process, when two relative butterfly wings distance between the outside is 5mm, just can satisfy the requirement of preventing the crosstalk. Compare in the cylindrical net twine that the external diameter reaches 6.8mm, the utility model discloses a six types of non-shielding net twines have less bend radius, change and lay the line construction.

5. The middle part of the net wire body is provided with a through first cavity, the steel wire is arranged in the first cavity in a penetrating mode, and the six types of non-shielding net wires can be hoisted on a ceiling through the steel wire. Need not to fix in addition, simple to operate is swift.

6. The middle part of the net twine body is provided with a second cavity, a phosphating steel wire is arranged in the cavity in a penetrating way, and the outer surface of the net twine is made of PE material. The phosphating steel wire is used for reinforcing the integral hardness of the six types of non-shielding net twines, the PE material hardness is high, after the phosphating steel wire and the PE material are arranged, the six types of non-shielding net twines can be used as outdoor net twines, and the material requirement of the outdoor net twines can be met.

Drawings

Fig. 1 is a cross-sectional view of a six-type unshielded mesh wire according to the present invention.

Description of reference numerals: the cable comprises a 1-network cable body, 11-butterfly wings, 2-copper core wires, 21-copper cores, 22-HDPE insulating layers and 3-tensile ropes.

Detailed Description

As shown in fig. 1, the cross section of the six-type unshielded mesh wire of the present invention is a four-wing butterfly shape. The six types of non-shielding network cables comprise a network cable body 1 and four groups of non-shielding cable groups arranged inside the network cable body 1. The net twine body 1 is provided with four butterfly wings 11. The four butterfly wings 11 extend in four directions, namely, up, down, left and right, respectively, and the four butterfly wings 11 are distributed in a cross shape relative to the center of the butterfly-shaped section, so that the shape of the cable body 1 is a four-wing butterfly shape. Each butterfly wing 11 is internally provided with a cavity, and the four groups of non-shielding line sets are respectively arranged in the cavities of the four butterfly wings 11 and extend in the same direction with the net line body 1.

The outer surface of the net wire body 1 is made of PVC or LSZH (low smoke zero halogen) material.

The non-shielding line group is arranged in the cavity inside the butterfly wing 11 and arranged in the same direction as the network cable body 1. The unshielded wire group comprises two copper core wires 2 which are twisted with each other, and the two copper core wires 2 are twisted with each other to form a twisted pair for data transmission. Four sets of non-shield lines are respectively disposed in the four butterfly wings 11.

The copper core wire 2 comprises a copper core 21 and an HDPE insulating layer 22 coated outside the copper core 21. Copper core 21 is an oxygen-free copper core, which is a common conductor copper core for twisted pairs. The HDPE insulating layer 22 is made of HDPE material, and the HDPE material is high-density polyethylene, which has good electrical insulation and is suitable for the insulating layer of the copper core wire 2.

The interior of the butterfly wing 11 is provided with a tensile rope 3, and the tensile rope 3 and the net twine body 1 extend in the same direction. Tensile strand 3 is a cylindrical glass fiber mat formed from a combination of a plurality of glass fibers having a diameter of about 0.5 mm. The tensile cords 3 serve to reinforce the resistance of the wire body 1 against deformation in the axial direction.

In this embodiment, the requirement of crosstalk prevention can be satisfied when the distance between the outermost sides of the two opposite wings 11 is 5 mm. That is, it is assumed that the crosstalk prevention requirement is satisfied when the pitch between the adjacent two shield line groups needs to be at least 3.5 mm. If the traditional cylindrical lead and cross structure is adopted, not only the cross needs to be arranged inside the lead, but also the outer diameter of the cylindrical lead needs to reach 6.8mm, and the non-shielding wire group can meet the requirement that the distance is larger than or equal to 3.5mm after being arranged inside the cylindrical lead. And if adopt the utility model discloses a six types of non-shielding net twine structures only need make two butterfly wings 11 distance between the outside be 5mm, and the width of net twine body 1 widest department is 5mm promptly, can satisfy and prevent the string sound requirement.

The structure of butterfly wing 11 is favorable to prolonging the interval between the non-shielding group, compares in the external diameter and reaches 6.8 mm's cylindrical net twine, the utility model discloses a six types of non-shielding net twines have less bend radius under the prerequisite that satisfies the requirement of preventing the cross sound equally, change and lay the line construction.

During processing, a through cavity can be arranged in the middle of the net wire body. The steel wire penetrates through the cavity, so that the steel wire is exposed out of two ends of the net wire body 1. The six types of non-shielding net cables with the structure are suitable for being arranged on a ceiling, the six types of non-shielding net cables can be hung on the ceiling through the steel wires at the two ends, the six types of non-shielding net cables do not need to be fixed additionally, and the installation is convenient and rapid.

Or a phosphated steel wire can be arranged in the cavity in a penetrating way, and the outer surface of the net wire body 1 is made of PE material. The phosphating steel wire is used for enhancing the integral hardness of the six types of non-shielding net twines, the PE material has high hardness, and after the phosphating steel wire and the PE material are arranged, the six types of non-shielding net twines can be used as outdoor net twines and can meet the material requirement of the outdoor net twines.

The utility model discloses an outwards extend the structure that forms four butterfly wings 11, set up four non-shielding line groups in four butterfly wings 11 respectively. Because the non-shielding group sets up four directions at the net twine body respectively, is favorable to prolonging the distance between the non-shielding group, compares in columniform net twine structure, the utility model discloses a spacing between the non-shielding group is bigger, has better crosstalk and interference killing feature, still has good stability. Because no cross is needed, no cross is needed to be produced and installed, and the production process and the material cost are greatly saved. Due to the adoption of the structure of the butterfly wing 11, on the premise of good crosstalk prevention performance, the external size of the network cable body 1 can be reduced, so that the bending radius of the six types of non-shielded network cables is small, and the construction of cable laying is more convenient.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (8)

1. A six-type non-shielding network cable is characterized by comprising a network cable body and four groups of non-shielding line groups, wherein the cross section of the network cable body is a four-wing butterfly shape, the four-wing butterfly shape comprises four butterfly wings which are uniformly distributed around the center of the butterfly section, the butterfly wings are arc-shaped bulges which extend towards the direction far away from the center of the butterfly section, and the connecting positions between the adjacent butterfly wings are sunken towards the center of the butterfly section; the four groups of the non-shielding line groups are respectively arranged in the four butterfly wings, and the non-shielding line groups and the network cable body extend in the same direction.

2. The six-type unshielded mesh wire according to claim 1, wherein the unshielded wire group comprises two copper core wires twisted with each other, and the copper core wires comprise a copper core and an HDPE insulating layer coated outside the copper core.

3. The six-type unshielded mesh wire according to claim 2, wherein a tensile rope extending in the same direction as the mesh wire body is arranged in the butterfly wing.

4. The six-type unshielded mesh wire of claim 3, wherein said tensile strand is a glass fiber mat.

5. The six-type unshielded mesh wire according to claim 1, wherein the distance between the outermost sides of the two opposite butterfly wings is 5 mm.

6. The six-type unshielded mesh wire according to claim 1, wherein a first cavity extending in the same direction as the mesh wire body and penetrating through the mesh wire body is formed in the middle of the mesh wire body, a steel wire penetrates through the first cavity, and the steel wire is exposed out of two ends of the mesh wire body.

7. The six-type unshielded mesh wire according to claim 1, wherein a second cavity extending in the same direction as the mesh wire body is arranged in the middle of the mesh wire body, a phosphated steel wire penetrates through the second cavity, and the outer surface of the mesh wire body is made of PE material.

8. The six-type unshielded mesh wire as claimed in claim 1, wherein the four-wing butterfly shape is a centrosymmetric pattern, the wing shapes are petal-shaped, and the center lines of adjacent wing shapes are perpendicular to each other.

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