CN217061516U

CN217061516U - Digital cable

Info

Publication number: CN217061516U
Application number: CN202220403701.XU
Authority: CN
Inventors: 周铭志
Original assignee: Ningbo Lianda Electronic Equipment Co ltd
Current assignee: Ningbo Lianda Electronic Equipment Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-26
Anticipated expiration: 2032-02-25

Abstract

The utility model provides a digital cable, which comprises a reinforcing part and a signal transmission cable component, wherein the signal transmission cable component comprises an outer sheath layer and a plurality of groups of line pairs arranged in the outer sheath layer, and the reinforcing part comprises an outer sheath layer sleeved outside the outer sheath layer and a reinforcing core positioned between the outer sheath layer and the outer sheath layer; or the reinforcing part comprises at least two reinforcing cores and at least two outer protective layers, the at least two outer protective layers and the at least two reinforcing cores are respectively in one-to-one correspondence, and the outer protective layers are sleeved on the peripheries of the corresponding reinforcing cores and connected with the outer protective layers through connecting parts. The digital cable effectively improves the tensile strength, increases the anti-aging performance, prolongs the service life, can also ensure the use effect, and effectively solves the problem of outdoor digital cable construction.

Description

Digital cable

Technical Field

The present disclosure relates to the field of cable technology, and more particularly, to a digital cable.

Background

With the rapid development of digital networks, the technology of digital cables is continuously advanced, and the digital cables are widely applied as the last hundred meters of ideal transmission media of network communication systems. Most of the digital cables with common specifications adopt Polyvinyl chloride (PVC) sheath materials, and the application of the cable meets the indoor environment. However, with the continuous expansion of network communication and the requirement of use environment, the use requirement that the digital cable extends from indoor to outdoor space arises, and new requirements are also made on the digital cable with common specifications.

When the conventional digital cable is used outdoors, the tensile strength and the ageing resistance are poor, the use effect of the product is influenced, and the service life is reduced. At present, some outdoor digital cables produced by Polyethylene (PE) jacket materials can solve the anti-aging problem, but because no reinforcing part is provided, a steel wire rope is adopted as an overhead bearing object during laying, which is inconvenient for construction except for increasing the cost.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a digital cable to at least solve the above technical problems occurring in the prior art.

The digital cable comprises a reinforcing piece and a signal transmission cable assembly, wherein the signal transmission cable assembly comprises an outer sheath layer and a plurality of groups of wire pairs arranged in the outer sheath layer, and the reinforcing piece comprises an outer sheath layer sleeved outside the outer sheath layer and a reinforcing core positioned between the outer sheath layer and the outer sheath layer; or, the reinforcement includes two at least enhancement cores and two at least outer sheaths, two at least outer sheaths and two at least enhancement core one-to-one respectively, the outer sheath cover is established and is corresponded strengthen the core periphery, and with be connected through connecting portion between the outer sheath layer.

In an implementation manner, two reinforcing cores are included between the outer sheath and the outer sheath, the two reinforcing cores are symmetrically arranged relative to an axis of the signal transmission cable assembly on a cross section of the digital cable, and a connection line of geometric centers of the two reinforcing cores and the axis of the signal transmission cable assembly are in the same straight line.

In an embodiment, the stiffener includes two stiffener cores and two outer sheaths, the two stiffener cores are symmetrically disposed with respect to an axis of the signal transmission cable assembly on a cross section of the digital cable, and a line connecting geometric centers of the two stiffener cores and the axis of the signal transmission cable assembly are located on a same straight line.

In an embodiment, the connection portion includes a circular ring portion sleeved on the outer periphery of the outer sheath layer and at least two protruding portions disposed on the circular ring portion, and the at least two protruding portions and the at least two outer sheath layers are respectively connected in a one-to-one correspondence manner.

In one embodiment, the connecting portion is connected to the outer sheath.

In one embodiment, the connecting portion and the outer sheath are integrally formed.

In one embodiment, a cross-shaped skeleton is disposed at the center of the signal transmission cable assembly, and the cross-shaped skeleton forms four regions inside the signal transmission cable assembly.

In one embodiment, each of the pairs includes a twisted pair formed by twisting two single wires and a shielding layer covering the outer circumference of the twisted pair, and the plurality of pairs are arranged in four of the regions.

In one embodiment, the single wire includes a copper wire and an insulating layer disposed on the copper wire.

In one embodiment, an outer shield and a polyester film are sequentially disposed from the outer jacket to the center of the signal transmission cable assembly.

In the present disclosure, the signal transmission cable assembly of the digital cable enables signal transmission of a communication network. Owing to set up the reinforcement, effectively improved digital cable's tensile strength, wherein, the outer jacket has increased digital cable's ageing resistance performance, not only can prolong the life of product, can also guarantee digital cable's result of use, effectively solves the problem of outdoor digital cable construction.

It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

in the drawings, like or corresponding reference characters designate like or corresponding parts.

FIG. 1 shows a cross-sectional schematic view of an exemplary embodiment digital cable of the present disclosure;

fig. 2 shows a cross-sectional schematic view of a digital cable according to an exemplary embodiment of the present disclosure (with two strength cores between the outer jacket layer and the outer jacket layer);

FIG. 3 shows a cross-sectional schematic view of a digital cable (strength member includes two strength cores) according to one exemplary embodiment of the present disclosure;

figure 4 illustrates a cross-sectional schematic view of a digital cable connection according to an exemplary embodiment of the present disclosure.

The reference numbers in the figures illustrate: 1. a reinforcement; 2. a signal transmission cable assembly; 3. a connecting portion; 11. an outer jacket; 12 reinforcing the core; 21. an outer jacket layer; 22. wire pair; 23. a cross skeleton; 24. an outer shield layer; 25. a polyester film; 31. a circular ring part; 32. a protrusion; 221. a single wire; 222. a shielding layer; 2211. a copper wire; 2212. an insulating layer.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a digital cable according to an exemplary embodiment of the present disclosure includes a strength member 1 and a signal transmission cable assembly 2, where the signal transmission cable assembly 2 includes an outer sheath layer 21 and a plurality of sets of wire pairs 22 disposed in the outer sheath layer 21, and the strength member 1 includes an outer sheath layer 11 and a strength member core 12. The outer sheath 11 is disposed around the outer sheath 21 of the signal transmission cable assembly 2, and the reinforcing core 12 is disposed between the outer sheath 11 and the outer sheath 21.

In the present embodiment, the reinforcing core 12 may specifically be made of a metal material, such as high-strength phosphated steel wire, other non-hydrogen-evolving materials, or the like; or with non-metallic materials such as fibre reinforced composites. Preferably, high strength phosphated steel wire having a diameter of 1 mm (it should be understood that 1 mm is not an absolute 1 mm here and may deviate somewhat within specified tolerances) is used in this application. The outer sheath 11 is preferably made of polyethylene material, and is widely used for signal transmission of various outdoor communication networks. The outer sheath layer 21 may be made of any of a variety of materials, including but not limited to polyvinyl chloride, polyethylene, glass fiber reinforced plastic, low smoke zero halogen, polyurethane, and thermoplastic polyurethane, to protect the internal structure of the digital communication cable. Specifically, the signal transmission cable assembly 2 enables signal transmission of a communication network; in the embodiment shown in fig. 1, a reinforcing core 12 is disposed between the outer sheath 11 and the outer sheath 21, and the tensile strength of the digital cable is effectively improved due to the provision of the reinforcing core 12; the outer jacket 11 arranged on the outermost layer of the digital cable increases the anti-aging performance of the digital cable, so that the service life of a product can be prolonged, the using effect of the digital cable and the stability of the structure can be guaranteed, and the problem of outdoor digital cable construction is effectively solved.

Referring to fig. 2, in an embodiment, two reinforcing cores 12 are included between the outer sheath 11 and the outer sheath 21, and on the cross section of the digital cable, the two reinforcing cores 12 are symmetrically disposed with respect to the axis of the signal transmission cable assembly 2, and a connection line of geometric centers of the two reinforcing cores 12 and the axis of the signal transmission cable assembly 2 are located on the same straight line, so that the internal structure of the digital cable is uniformly distributed, the overall structure is stable, and the digital signal can achieve the best effect when being transmitted.

In an embodiment not shown, the number of the reinforcing cores 12 between the outer sheath 11 and the outer sheath 21 may also be three, or even more than three.

In an embodiment, the reinforcement 1 includes at least two reinforcing cores 12 and at least two outer sheaths 11, the at least two outer sheaths 11 correspond to the at least two reinforcing cores 12 one by one, each outer sheath 11 is sleeved on the periphery of the corresponding reinforcing core 12, and each outer sheath 11 is connected to the outer sheath 21 through the connecting portion 3.

In the present embodiment, the reinforcing core 12 may specifically adopt a metal material, such as a high-strength phosphated steel wire, other non-hydrogen-evolving materials, or the like; or non-metallic materials such as fiber reinforced composites. Preferably, high strength phosphated steel wire having a diameter of 1 mm (it should be understood that 1 mm is not an absolute 1 mm here and may deviate somewhat within specified tolerances) is used in this application. The same material, preferably polyethylene material, is used for the outer sheath 11 and the connecting part 3, so as to be widely used for signal transmission of various outdoor communication networks. The outer sheath layer 21 may be made of any of a variety of materials, including but not limited to polyvinyl chloride, polyethylene, glass fiber reinforced plastic, low smoke zero halogen, polyurethane, and thermoplastic polyurethane, to protect the internal structure of the digital communication cable. Due to the arrangement of the plurality of reinforcing cores 12, the tensile strength of the digital cable is effectively improved; the outer protective layer 11 sleeved on the periphery of the reinforcing core 12 increases the aging resistance of the digital cable, so that the service life of a product can be prolonged, the use effect and the structural stability of the digital cable can be ensured, and the problem of outdoor digital cable construction is effectively solved; the reinforcing part 1 is connected with the signal transmission cable assembly 2 through the connecting part 3, so that the reinforcing part 1 and the signal transmission cable assembly 2 are easy to peel off, the signal transmission cable assembly 2 is convenient to connect, and the connecting part 3 can also ensure the stable structure of the digital cable while the electrical performance and the transmission performance of a product are not influenced.

Referring to fig. 3, in an embodiment, the reinforcing member 1 includes two reinforcing cores 12 and two outer sheaths 11, in a cross section of the digital cable, the two reinforcing cores 12 are symmetrically disposed with respect to an axis of the signal transmission cable assembly 2, and a connection line of geometric centers of the two reinforcing cores 12 is in the same straight line with the axis of the signal transmission cable assembly 2, so that an internal structure of the digital cable is uniformly distributed, an overall structure is stable, and a digital signal can achieve a best effect during propagation.

In an embodiment, the connecting portion 3 includes a circular ring portion 31 and at least two protruding portions 32, which are disposed on the circular ring portion 31, and the protruding portions 32 are disposed on the outer circumference of the outer sheath layer 21. It will be understood that the specific number of the protrusions 32 corresponds to the number of the core 12, so that the protrusions 32 are connected to the outer sheath 11 on the outer periphery of the core 12 in a one-to-one correspondence.

In the present embodiment, as shown in fig. 4, the connection portion 3 includes two protruding portions 32, the two protruding portions 32 are integrally molded with the annular portion 31, and the entire portion is made of polyethylene material, so that the present embodiment is widely used for signal transmission of various outdoor communication networks. Due to the arrangement of the protruding part 32, the reinforcing part 1 and the signal transmission cable assembly 2 are easily peeled off, so that the signal transmission cable assembly 2 can be conveniently connected, and the structural stability of the digital cable can be ensured while the electrical performance and the transmission performance of a product are not influenced.

On the basis of the above-mentioned embodiments, the connecting portion 3 is bonded to the outer sheath 11, that is, the protruding portion 32 of the connecting portion 3 is bonded to the outer sheath 11 by an adhesive; alternatively, the connection portion 3 is preferably integrally formed with the outer sheath 11. In the production process, the sheath machine is extruded and molded by a mold with the same appearance as the outer protective layer 11 and the connecting part 3, so that the operation steps are reduced, the production efficiency is greatly improved, and the structure is stable.

In one embodiment, the signal transmission cable assembly 2 is provided with a cross frame 23 at the center, the cross frame 23 forms four regions inside the signal transmission assembly, and the plurality of pairs 22 are respectively arranged in the four regions. Each group of the wire pairs 22 includes a twisted pair formed by twisting two single wires 221 and a shielding layer 222 covering the outer circumference of the twisted pair, and the single wire 221 includes a copper conductor 2211 and an insulating layer 2212 covering the copper conductor 2211.

In the present embodiment, the cross frame 23 is provided at the center of the signal transmission cable assembly 2, and thus the digital cable can be supported. The cross frame 23 may be made of any of a variety of materials, including but not limited to polyvinyl chloride, polyethylene, glass fiber reinforced plastic, low smoke zero halogen, polyurethane, and thermoplastic polyurethane. The shielding layer 222 is arranged on the periphery of the twisted pair, so that external electromagnetic interference can be well resisted, electromagnetic wave radiation of the twisted pair can be controlled, normal work of other surrounding equipment and networks can not be interfered, and crosstalk interference is reduced to the minimum. The material used for the insulation layer 2212 may be polyethylene or other materials that can produce insulation effect in practical production, and is not limited herein.

In one embodiment, the outer shield layer 21 is further provided with an outer shield layer 24 and a polyester film 25 in sequence from the center of the signal transmission cable assembly 2. Preferably, the outer shielding layer 24 is made of aluminum foil to resist external electromagnetic interference; the polyester film 25 is provided to serve as a moisture barrier and insulation as well as to secure the interior of the signal transmission cable assembly 2.

In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the orientation terms is generally based on the orientation or positional relationship shown in the drawings, and is for convenience of description and simplicity of description only, and in the event that the description is not made to the contrary, these orientation terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the disclosure; the terms "inner" and "outer" refer to the interior and exterior of the respective components as they relate to their own contours.

Spatially relative terms, such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features to other components or features as illustrated in the figures. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the figures is turned over in its entirety, elements "above" or "over" other elements or features would include elements "below" or "beneath" other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be oriented at 0 at various other angles (e.g., rotated 90 degrees or at other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in other sequences than those illustrated or described herein.

The present disclosure has been illustrated by the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the present disclosure to the scope of the described embodiments. Further, it will be understood by those skilled in the art that the present disclosure is not limited to the above embodiments, and that many variations and modifications may be made in accordance with the teachings of the present disclosure, all of which fall within the scope of the present disclosure as claimed. The scope of the disclosure is defined by the appended claims and equivalents thereof.

Claims

1. A digital cable, comprising a reinforcement (1) and a signal transmission cable assembly (2), wherein the signal transmission cable assembly (2) comprises an outer sheath layer (21) and a plurality of sets of wire pairs (22) arranged in the outer sheath layer (21), characterized in that the reinforcement (1) comprises an outer sheath layer (11) sleeved outside the outer sheath layer (21) and a reinforcing core (12) positioned between the outer sheath layer (11) and the outer sheath layer (21); or, reinforcement (1) includes two at least enhancement cores (12) and two at least outer sheaths (11), two at least outer sheath (11) and two at least enhancement core (12) respectively one-to-one, outer sheath (11) cover is established and is corresponded strengthen core (12) periphery, and with be connected through connecting portion (3) between outer sheath (21).

2. The digital cable according to claim 1, wherein two reinforcing cores (12) are included between the outer sheath layer (11) and the outer sheath layer (21), and in a cross section of the digital cable, the two reinforcing cores (12) are symmetrically arranged with respect to an axial center of the signal transmission cable assembly (2), and a line connecting geometric centers of the two reinforcing cores (12) is in the same line with the axial center of the signal transmission cable assembly (2).

3. The digital cable according to claim 1, wherein the strength member (1) comprises two strength cores (12) and two outer sheaths (11), and in the cross section of the digital cable, the two strength cores (12) are symmetrically arranged relative to the axial center of the signal transmission cable assembly (2), and the connection line of the geometric centers of the two strength cores (12) is in the same straight line with the axial center of the signal transmission cable assembly (2).

4. The digital cable according to claim 1, wherein the connecting portion (3) comprises a circular ring portion (31) disposed on the outer periphery of the outer sheath layer (21) and at least two protruding portions (32) disposed on the circular ring portion (31), and the at least two protruding portions (32) are connected with the at least two outer sheath layers (11) in a one-to-one correspondence manner.

5. Digital cable according to claim 4, characterized in that the connection portion (3) is glued to the outer sheath (11).

6. The digital cable according to claim 4, wherein the connecting portion (3) is integrally formed with the outer sheath (11).

7. The digital cable according to claim 1, wherein the center of the signal transmission cable assembly (2) is provided with a cross frame (23), and the cross frame (23) forms four regions inside the signal transmission cable assembly (2).

8. The digital cable of claim 7, wherein each set of said pairs (22) comprises a twisted pair formed by twisting two single wires (221) and a shield (222) covering the outer circumference of said twisted pair, and a plurality of sets of said pairs (22) are arranged in four of said areas.

9. The digital cable of claim 8, wherein the single wire (221) comprises a copper wire (2211) and an insulating layer (2212) disposed over the copper wire (2211).

10. The digital cable according to claim 1, wherein an outer shield layer (24) and a polyester film (25) are further provided in this order from the outer sheath layer (21) to the center of the signal transmission cable assembly (2).