Shielded pair cable

Abstract

The utility model relates to the technical field of pair cable, especially shielded pair cable. Shielded pair cable includes pair cable and outer skin, and the outer skin end is installed with joint, and its characterized in that, the outer skin end is inserted with the connecting ring, the connecting ring is located the connecting piece of outer skin and joint at the outer skin and joint junction, the connecting ring inboard fixedly connected with the baffle, the baffle inside is equipped with the mounting hole of annular equidistance distribution, the mounting hole inside is inserted with the wiring sleeve, the wiring sleeve inside is equipped with the wiring hole of annular equidistance distribution, in the shielded pair cable, the mounting hole inboard is equipped with the toothing structure. The application passes through multilayer stranding structure, effectively reduced electromagnetic interference and signal crosstalk, shortens transmission path to reduce delay at the same time, and the spacing consistency and arrangement stability of wire are ensured by the uniformly distributed wiring hole and fixed baffle, avoid the mutual interference in signal transmission.

Description

Technical Field

[0001] This utility model relates to the field of twisted pair cable technology, and more particularly to shielded twisted pair cables. Background Technology

[0002] Twisted-pair cable is a communication cable made of mutually insulated copper wires twisted together according to certain rules, mainly used for transmitting electrical signals. Its core feature is that it suppresses electromagnetic interference and crosstalk by twisting the two wires together, and it is widely used in network communication, telephone systems and other fields.

[0003] Chinese Patent CN220041434U discloses a shielded twisted-pair cable, including an innermost reinforcing core. The reinforcing core includes a protective sleeve and multiple tensile strips encased within the protective sleeve. Multiple spacers are fixed to the outside of the protective sleeve, with two conductors positioned between every two spacers. Each conductor is covered with an insulation layer. The two conductors are twisted together after being covered by the insulation layer and then wrapped by the outer sheath to form a cable. A protective bushing is provided outside the insulation layer. From the inside out, the protective bushing consists of an outer shielding layer, a buffer layer, a flame-retardant layer, and an outer insulation layer. The outer wall of the outer shielding layer is fixed to the inner wall of the buffer layer, the outer wall of the buffer layer is bonded to the inner wall of the flame-retardant layer, and the outer wall of the flame-retardant layer is bonded to the outer insulation layer. This utility model cable provides good protection, strong stability, and effectively prevents cable damage.

[0004] In existing twisted-pair cables, the electromagnetic coupling between adjacent conductors is enhanced due to the misalignment of the conductors, which causes signal crosstalk. In addition, the conductors may suffer fatigue or mechanical damage under vibration loads, affecting the structural integrity and long-term reliability of the conductors. Utility Model Content

[0005] This invention provides a shielded twisted-pair cable to solve the technical problem of signal crosstalk caused by enhanced electromagnetic coupling between adjacent conductors due to conductor position offset.

[0006] According to a first aspect of the present invention, the present invention provides a shielded twisted-pair cable, comprising a twisted-pair cable and an outer sheath, wherein a connector is installed at the end of the outer sheath, characterized in that a connecting ring is inserted into the end of the outer sheath, the connecting ring being a connector between the outer sheath and the connector located at the connection point between the outer sheath and the connector, a partition is fixedly connected to the inner side of the connecting ring, the partition having annularly equidistant mounting holes inside, a cable routing sleeve being inserted into the mounting holes, and the cable routing sleeve having annularly equidistant cable routing holes inside.

[0007] In a shielded twisted-pair cable according to an embodiment of the present invention, the inner side of the mounting hole is provided with a toothed structure, and the outer side of the cable sleeve is provided with a slot that matches the inner side of the mounting hole. The mounting hole is installed inside the cable sleeve to form a rotation limiting structure. A plug sleeve is fixedly connected to the side of the connecting ring away from the connector, and the plug sleeve is inserted into the inner side of the outer sheath.

[0008] In a shielded twisted-pair cable according to one embodiment of the present invention, a threaded ring is fixedly connected to the side of the connecting ring away from the outer sheath, and the threaded ring is located outside the partition plate, and the connector is threadedly connected to the outside of the threaded ring.

[0009] In a shielded twisted-pair cable according to an embodiment of the present invention, the outer sheath is a multi-layer composite structure, which consists of an inner layer, a shielding layer and an outer layer.

[0010] In a shielded twisted-pair cable according to an embodiment of the present invention, the inner layer has annularly distributed slots on its inner side, the slots being distributed along the length direction of the inner layer, and the outer side of the plug sleeve having a protrusion matching the inner side of the inner layer, the plug sleeve being installed inside the inner layer to form a rotation limiting structure.

[0011] In a shielded twisted-pair cable according to an embodiment of the present invention, the shielding layer is located between the inner layer and the outer layer, and the shielding layer is made of a metal mesh material.

[0012] In a shielded twisted-pair cable according to an embodiment of the present invention, the twisted-pair cable includes a main cable distributed in a spiral shape inside the inner layer. The main cable is composed of secondary cables twisted together in a spiral shape. The secondary cables are composed of conductors twisted together in a spiral shape. Each conductor passes through a corresponding wiring hole and is connected to a connector.

[0013] The technical solution provided in this application embodiment can include the following beneficial effects: This application effectively reduces electromagnetic interference and signal crosstalk through a multi-layer stranded structure, while shortening the transmission path to reduce delay; the uniformly distributed wiring holes and fixed partitions ensure the consistency of wire spacing and arrangement stability, avoiding mutual interference in signal transmission; the connection ring and threaded ring provide a quick plug-in assembly mechanism, effectively dispersing end stress and facilitating disassembly and maintenance; the rotation limit design prevents displacement caused by wire torsion and vibration; the three-layer outer sheath structure provides electromagnetic shielding function, intercepting external interference and limiting internal signal leakage, while enhancing mechanical protection and environmental resistance.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the shielded twisted-pair cable provided in this application;

[0017] Figure 2 This is a schematic diagram of the outer sheath layer structure of the shielded twisted-pair cable provided in this application;

[0018] Figure 3 This is a schematic diagram of the connection ring structure of the shielded twisted pair cable provided in this application;

[0019] Figure 4 This is a schematic diagram of the inner structure of the shielded twisted-pair cable provided in this application;

[0020] Figure 5 This is a schematic diagram of the main cable structure of the shielded twisted pair cable provided in this application;

[0021] Figure 6 This is a schematic diagram of the connector and connecting ring connection structure of the shielded twisted pair cable provided in this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Outer sheath; 2. Connector; 3. Connecting ring; 4. Partition; 5. Mounting hole; 6. Cable sleeve; 7. Cable hole; 8. Plug sleeve; 9. Threaded ring; 10. Inner layer; 11. Shielding layer; 12. Outer layer; 13. Main cable; 14. Secondary cable; 15. Conductor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6As shown, this utility model provides a shielded twisted-pair cable, including an outer sheath 1, a connector 2, and a twisted-pair cable. The end of the outer sheath 1 is connected to the connector 2 through a connecting ring 3. A partition 4 is fixed inside the connecting ring 3. The partition 4 is provided with annular equidistant mounting holes 5. A cable routing sleeve 6 is inserted into the mounting holes 5. An annular cable routing hole 7 is provided inside the cable routing sleeve 6. The twisted-pair cable is composed of a main cable 13, a secondary cable 14, and a conductor 15. The conductor 15 is spirally twisted to form the secondary cable 14. The secondary cable 14 is then spirally twisted to form the main cable 13. The main cable 13 is located in the inner layer 10 of the outer sheath 1.

[0026] like Figure 2 and Figure 5 As shown, the twisted pair cable includes a main cable 13 located inside the inner layer 10 and distributed in a spiral shape. The main cable 13 is composed of secondary cables 14 that are twisted together in a spiral shape. The secondary cables 14 are composed of conductors 15 that are twisted together in a spiral shape. Each conductor 15 passes through the corresponding wiring hole 7 and is connected to the connector 2.

[0027] In an optional embodiment, the conductor 15 is spirally twisted to form a secondary cable 14, and the secondary cable 14 is further twisted to form a main cable 13. This double-stranded structure causes electromagnetic interference to generate reverse induced currents between the conductors, which cancel each other out to reduce crosstalk. When the main cable 13 extends to the connecting ring 3, the conductor 15 separates from the twisted structure, passes through the wiring holes 7 of the wiring sleeve 6 in sequence, and connects to the connector 2. The annular equidistant distribution of the wiring holes 7 ensures that the spacing of the conductors 15 is uniform, avoiding mutual interference during signal transmission. The partition 4 fixes the position of the wiring sleeve 6 to prevent it from shifting under external force and maintains the stability of the arrangement of the conductors 15. The connecting ring 3 serves as a transition between the outer sheath 1 and the connector 2, and achieves quick assembly through plug-in connection, while dispersing end stress. During signal transmission, the twisted structure shortens the conductor path and reduces transmission delay, while the guiding effect of the wiring holes 7 ensures the stability of high-frequency signal impedance, which is suitable for scenarios such as network data cables.

[0028] like Figure 6 As shown, a threaded ring 9 is fixed on the side of the connecting ring 3 away from the outer skin 1, and the connector 2 is threadedly connected to the outside of the threaded ring 9; a plug sleeve 8 is fixed on the side of the connecting ring 3 away from the connector 2, and the plug sleeve 8 is inserted into the inner layer 10 of the outer skin 1. The inner side of the mounting hole 5 has a toothed structure, and the outer side of the cable sleeve 6 has a matching groove. The two mesh to form a rotation limit. The inner side of the inner layer 10 has an axial groove, and the outer side of the plug sleeve 8 has a protrusion. The two are inserted to form a rotation limit.

[0029] Optionally, the plug sleeve 8 is inserted into the outer sheath 1 through the engagement of the protrusion and the slotted inner layer 10, restricting the relative rotation of the two and preventing the wire 15 from being damaged by twisting during assembly. The cable routing sleeve 6 engages with the toothed structure of the mounting hole 5 through the slot, preventing the cable routing sleeve 6 from rotating in the partition 4 and ensuring that the wire 15 maintains a fixed angle in the cable routing hole 7. The threaded connection between the threaded ring 9 and the connector 2 provides an adjustable tightening force, which can enhance the sealing when tightened and facilitate quick disassembly and maintenance when loosened. In dynamic environments, the double rotation limiting structure absorbs vibration energy and reduces the risk of displacement of the wire 15. The threaded connection also disperses the mechanical load of the connector 2 and avoids stress concentration on a single component. For example, in industrial equipment scenarios with frequent plugging and unplugging, this design ensures connection reliability and reduces the probability of fracture caused by metal fatigue.

[0030] like Figure 2 As shown, the outer sheath 1 has a three-layer composite structure. The inner layer 10 directly wraps the main cable 13. The shielding layer 11 is made of metal mesh material and covers the inner layer 10. The outer layer 12 covers the shielding layer 11. The inner side of the inner layer 10 has an axial groove, which forms a rotation limit with the protrusion of the plug sleeve 8.

[0031] For example, the metal mesh structure of the shielding layer 11 intercepts external electromagnetic interference through the Faraday cage effect. The interference current is guided to the grounding terminal of the connector 2 through the mesh conductive path, preventing noise from penetrating into the inner layer 10. At the same time, the internal electromagnetic field generated by the stranded wire 15 is confined within the shielding layer 11, reducing signal leakage. The slotted design of the inner layer 10 and the rotation limit design of the protrusion of the plug sleeve 8 prevent the main cable 13 from twisting in bending scenarios, maintaining the stability of the stranded structure. The outer layer 12 provides mechanical protection and protects the shielding layer 11 from physical damage. In high temperature or humid environments, the open structure of the metal mesh shielding layer 11 promotes heat dissipation and moisture evaporation, preventing a decrease in conductivity. For example, when medical devices transmit weak bioelectric signals, this three-layer structure ensures signal purity and resists disinfectant corrosion through the chemically inert material of the outer layer 12, extending the cable life.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A shielded twisted-pair cable, comprising a twisted-pair cable and an outer sheath (1), wherein a connector (2) is installed at one end of the outer sheath (1), characterized in that, A connecting ring (3) is inserted into the end of the outer skin (1). The connecting ring (3) serves as a connector between the outer skin (1) and the connector (2) and is located at the connection between the outer skin (1) and the connector (2). A partition (4) is fixedly connected to the inner side of the connecting ring (3). The partition (4) has annularly distributed mounting holes (5) inside. A cable routing sleeve (6) is inserted into the mounting holes (5). The cable routing sleeve (6) has annularly distributed cable routing holes (7) inside.

2. The shielded pair cable of claim 1, wherein, The inner side of the mounting hole (5) is provided with a toothed structure, and the outer side of the cable sleeve (6) is provided with a slot that matches the inner side of the mounting hole (5). The mounting hole (5) is installed inside the cable sleeve (6) to form a rotation limiting structure. The connecting ring (3) is fixedly connected to the plug sleeve (8) on the side away from the connector (2). The plug sleeve (8) is inserted into the inner side of the outer skin (1).

3. The shielded pair cable of claim 2, wherein, The connecting ring (3) is fixedly connected to a threaded ring (9) on the side away from the outer skin (1), and the threaded ring (9) is located outside the partition plate (4). The connector (2) is threadedly connected to the outside of the threaded ring (9).

4. The shielded twisted-pair cable according to claim 1, characterized in that, The outer skin (1) is a multi-layer composite structure, consisting of an inner layer (10), a shielding layer (11), and an outer layer (12).

5. The shielded pair cable of claim 4, wherein, The inner layer (10) has annularly distributed slots on its inner side, which are distributed along the length of the inner layer (10). The outer side of the plug sleeve (8) has a protrusion that matches the inner side of the inner layer (10). The plug sleeve (8) is installed inside the inner layer (10) to form a rotation limiting structure.

6. The shielded pair cable of claim 5, wherein, The shielding layer (11) is located between the inner layer (10) and the outer layer (12), and the shielding layer (11) is made of a metal mesh material.

7. The shielded twisted pair cable of claim 1, wherein, The twisted pair cable includes a main cable (13) located inside the inner layer (10) and distributed in a spiral shape. The main cable (13) is composed of secondary cables (14) twisted together in a spiral shape. The secondary cables (14) are composed of conductors (15) twisted together in a spiral shape. Each conductor (15) passes through a corresponding wiring hole (7) and is connected to a connector (2).

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