CN214203243U - Combined insulated data cable - Google Patents

Abstract

The utility model provides a combined insulated data cable, the number of twisted pairs of the combined insulated data cable is even number pairs, and at least 4 pairs; the twisted pairs are respectively arranged at different included angles; the outer sides of the wires of the twisted pairs are sleeved with insulating layers, the first twisted pair and the second twisted pair are arranged in a staggered mode around the framework, the insulating layers sleeved on the wires of the first twisted pair comprise foamed insulating layers and solid insulating layers, and the insulating layers sleeved on the wires of the second twisted pair comprise solid insulating layers; the first shielding layer and the sheath sequentially and longitudinally wrap the framework and the twisted pair, and the ground wire is arranged on the inner side of the first shielding layer. The utility model discloses a foaming insulating layer in the insulating layer, solid insulating layer reduce the influence that little pitch twisted wire pair propagation rate and time delay caused respectively and improve the anti external force performance of product, make data cable's crosstalk attenuation index possess bigger surplus and when receiving deformation circumstances such as bending, the performance still can satisfy the demands.

Description

Combined insulated data cable

Technical Field

The utility model relates to a communication cable field especially relates to combined insulation data cable.

Background

With the rapid development of network technology, people have higher and higher requirements on the performance of the integrated wiring system. From traditional audio copper core twisted-pair local area network cable to today's up to gigabit ratio local area network technology, with increasing network speed, it means that the higher the operating frequency, the easier it is to generate electromagnetic radiation and capacitive coupling. Meanwhile, new electromagnetic interference sources are continuously generated in the surrounding environment, the radiation generated when the network working frequency is higher is more serious, and the balance characteristic of the UTP non-shielding data cable is not enough to offset the electromagnetic radiation of the line and the external electromagnetic interference (the electromagnetic compatibility performance can only be met when 30-40 MHz data is transmitted). Moreover, when the cable is laid, the operation of cable deformation is often caused because the environment or other factors need to be executed to bend the cable, and the mode often causes the wires inside the cable to move, so that the stability of electromagnetic radiation between the wires is influenced, and the anti-interference capability of the cable is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, the utility model provides a combined insulation data cable, the mode through the little pitch transposition forms the twisted pair, utilize the fixed twisted pair of skeleton, and set up different insulating layers on the wire of adjacent twisted pair, through the foaming insulating layer in the insulating layer, the solid insulating layer reduces the influence that little pitch twisted pair propagation rate and time delay caused respectively and the anti external force resistance ability that improves the product, make data cable's crosstalk attenuation index possess bigger surplus and when receiving deformation circumstances such as bending, the performance still can satisfy the demands.

In order to solve the above problem, the utility model discloses a technical scheme do: a combination insulated data cable, the combination insulated data cable comprising: the cable comprises twisted pairs, an insulating layer, a framework, a ground wire, a first shielding layer and a sheath, wherein the number of the twisted pairs is an even number of pairs and is at least 4 pairs; the framework comprises at least four included angles, and the twisted pair wires are respectively arranged on different included angles; the twisted pair comprises two small-pitch twisted wires, the insulating layer is sleeved on the outer side of each wire, the twisted pair comprises a first twisted pair and a second twisted pair, the first twisted pair and the second twisted pair are arranged around the framework in a staggered mode, the insulating layer sleeved on the wires of the first twisted pair comprises a foamed insulating layer and a solid insulating layer, and the insulating layer sleeved on the wires of the second twisted pair comprises a solid insulating layer; the first shielding layer and the sheath sequentially and longitudinally wrap the framework and the twisted pair, and the ground wire is arranged on the inner side of the first shielding layer.

Further, the conducting wire is a copper wire.

Further, the diameter of the copper wire is 0.57 mm.

Furthermore, the foamed insulating layer is a foamed polyethylene insulating layer, and the solid insulating layer is a polyethylene insulating layer.

Further, the diameter of the foaming insulating layer is 1.1 mm.

Further, the number of the first twisted pair and the second twisted pair is two.

Further, the framework is a cross framework, and different twisted pair wires are separated by the cross framework.

Furthermore, the combined insulated data cable further comprises a fixing band, and the fixing band is wound on the twisted pair fixed by the framework.

Further, the first shielding layer is an aluminum foil.

Further, the sheath is a polyethylene sheath.

Compared with the prior art, the beneficial effects of the utility model reside in that: the twisted pair is formed by a small-pitch twisting mode, the twisted pair is fixed by the framework, different insulating layers are arranged on the leads of the adjacent twisted pair, the influence caused by the propagation rate and the time delay of the small-pitch twisted pair is reduced and the external force resistance of the product is improved respectively by the foamed insulating layer and the solid insulating layer in the insulating layers, so that the crosstalk attenuation index of the data cable has larger allowance and the performance can still meet the requirement when the data cable is subjected to deformation conditions such as bending and the like.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the combined insulated data cable of the present invention.

In the figure: 1. a wire; 2. a framework; 3. an insulating layer; 4. a ground wire; 5. a first shielding layer; 6. a sheath; 31. foaming the insulating layer; 32. a solid core insulating layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1, fig. 1 is a cross-sectional view of an embodiment of a composite insulated data cable according to the present invention, wherein the cross-sectional view of fig. 1 is a transverse cross-sectional view of the composite insulated data cable, and the composite insulated data cable according to the present invention is described in detail with reference to fig. 1.

In this embodiment, a combination insulated data cable includes: at least four twisted pairs, an insulating layer 3, a framework 2, a ground wire 4, a first shielding layer 5 and a sheath 6; the framework 2 comprises at least four included angles, and the twisted pairs are respectively arranged on different included angles; the twisted pair comprises two small-pitch twisted wires 1, an insulating layer 3 is sleeved on the outer side of each wire 1, the twisted pair comprises a first twisted pair and a second twisted pair, the first twisted pair and the second twisted pair are arranged in a staggered mode around the framework 2, the insulating layer 3 sleeved on the wires 1 of the first twisted pair comprises a foamed insulating layer 31 and a solid insulating layer 32, and the insulating layer 3 sleeved on the wires 1 of the second twisted pair comprises the solid insulating layer 32; the first shielding layer 5 and the sheath 6 sequentially and longitudinally wrap the framework 2 and the twisted pair, and the ground wire 4 is arranged on the inner side of the first shielding layer 5.

In the present embodiment, the small pitch twisting method used for twisting the conductor 1 is prior art and will not be described in detail herein, and the stability of the twisted pair is improved by the small pitch twisting method. After the wires 1 are twisted to form twisted pairs, the twisted pairs fixed by the framework 2 are fixed in the combined insulated data cable in a mode of being twisted into a whole.

In this embodiment, the material constituting the wire 1 is a copper wire, wherein the copper wire may be a single copper wire or formed by twisting a plurality of copper wires, and in other embodiments, the material constituting the wire 1 may be aluminum, aluminum alloy, or other materials capable of transmitting data.

In a preferred embodiment, the wire 1 is a copper wire and the diameter of the wire 1 is 0.57 mm.

In the present embodiment, the foamed insulating layer 31 of the insulating layer 3 is foamed polyethylene, and the solid insulating layer 32 is polyethylene. The dielectric constant of the insulating layer 3 is reduced by the foamed insulating layer 31, and the transmission performance of the cable is improved.

In other embodiments, the foamed insulating layer 31 may also be made of one or more materials such as foamed polyurethane, foamed polyvinyl chloride, foamed polystyrene, foamed phenolic resin, and the like.

In this embodiment, the insulation layer 3 on the first twisted wire pair includes two solid insulation layers 32, and the foamed insulation layer 31 is disposed between the two solid insulation layers 32. In other embodiments, a solid insulating layer 32 may be provided, and the foamed insulating layer 31 may be provided inside the solid insulating layer 32.

In a preferred embodiment, the foamed insulating layer 31 has a diameter of 1.1 mm. The solid insulating layer 32 on the second twisted wire pair has a diameter of 1.12 mm.

In the present embodiment, the number of the first twisted pair and the second twisted pair is two pairs. In other embodiments, the number of the first twisted pair and the second twisted pair may be 3 pairs, 4 pairs, or other numbers, and only the first twisted pair and the second twisted pair need to be staggered.

In this embodiment, the former 2 is a cross former 2, and the different twisted pairs are separated by the cross former 2. In other embodiments, the frame 2 may be set in other shapes according to the number of the twisted pairs, and only the twisted pairs are required to be separately set at different angles of the frame 2.

In this embodiment, the skeleton 2 is made of polypropylene, and in other embodiments, the skeleton 2 may be made of one or more of polyolefin, carbon fiber, polyethylene, and other materials.

In this embodiment, the composite insulated data cable further includes a fixing tape wound around the twisted pair fixed by the bobbin 2.

In a preferred embodiment, the securing strap is a polyester strap.

In the present embodiment, the ground wire 4 is a tinned copper wire. In other embodiments, the ground wire 4 may also be made of aluminum, bare copper flexible wire, copper-clad steel, zinc-clad steel, and other conductive materials.

In a preferred embodiment the ground wire 4 is a tin-plated copper wire with a diameter of 0.4 mm.

In this embodiment, the first shielding layer 5 is an aluminum foil, and a tear line is disposed on the aluminum foil, so that the tearing difficulty of the aluminum foil is reduced through the tear line, and the cable connection speed is increased.

In a preferred embodiment the aluminium foil is a thickened aluminium foil, the thickness of the aluminium foil being 23 mm.

In this embodiment, the jacket 6 is a polyvinyl chloride jacket 6. In other embodiments, jacket 6 may also be constructed of low smoke zero halogen, high density polyethylene, rubber, silicone rubber, polyurethane, and other insulating materials.

In a preferred embodiment, the sheath 6 is a 75 degree UL grade polyvinyl chloride sheath 6 having a thickness of 0.55mm and a diameter of 7.35 mm.

Has the advantages that: the utility model discloses a mode that combination insulated data cable passes through the small pitch transposition forms the twisted pair, utilize the fixed twisted pair of skeleton, and set up different insulating layers on the wire of adjacent twisted pair, through the foaming insulation layer in the insulating layer, the solid core insulating layer reduces the influence that small pitch twisted pair propagation rate and time delay caused respectively and improves the anti exogenic property of product, the crosstalk attenuation index that makes data cable possesses bigger surplus and when receiving deformation circumstances such as bending, the performance still can satisfy the requirement.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

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.

Claims (10)

1. A combination insulated data cable, the combination insulated data cable comprising: the cable comprises twisted pairs, an insulating layer, a framework, a ground wire, a first shielding layer and a sheath, wherein the number of the twisted pairs is an even number of pairs and is at least 4 pairs;

the framework comprises at least four included angles, and the twisted pair wires are respectively arranged on different included angles;

the twisted pair comprises two small-pitch twisted wires, the insulating layer is sleeved on the outer side of each wire, the twisted pair comprises a first twisted pair and a second twisted pair, the first twisted pair and the second twisted pair are arranged around the framework in a staggered mode, the insulating layer sleeved on the wires of the first twisted pair comprises a foamed insulating layer and a solid insulating layer, and the insulating layer sleeved on the wires of the second twisted pair comprises a solid insulating layer;

the first shielding layer and the sheath sequentially and longitudinally wrap the framework and the twisted pair, and the ground wire is arranged on the inner side of the first shielding layer.

2. The combination insulated data cable of claim 1 wherein the conductors are copper wires.

3. The composite insulated data cable of claim 2 wherein the copper wire has a diameter of 0.57 mm.

4. The combination insulated data cable of claim 1 wherein the foamed insulation layer is a foamed polyethylene insulation layer and the solid insulation layer is a polyethylene insulation layer.

5. The composite insulated data cable of claim 4 wherein the foamed insulating layer has a diameter of 1.1 mm.

6. The combination insulated data cable of claim 1 wherein the first twisted pair and the second twisted pair are each two pairs in number.

7. The composite insulated data cable of claim 6 wherein said backbone is a cross-backbone, different said twisted pair pairs being separated by said cross-backbone.

8. The combination insulated data cable of claim 1 further comprising a securing tape wrapped around the twisted pairs secured by the backbone.

9. The composite insulated data cable of claim 1 wherein the first shield layer is aluminum foil.

10. The combination insulated data cable of claim 1 wherein the jacket is a polyethylene jacket.

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