Cable switching device

Abstract

The utility model discloses a cable switching device, which belongs to the technical field of cable switching and comprises a shell, an adapter and an insulating net. And a crimping head for fixing a cable is arranged in the shell. The adapter is provided with a plurality of adapter interfaces, and a partition part is formed between every two adjacent adapter interfaces. When the cable core of the cable is connected with the corresponding adapter interface, the insulation net wraps the periphery of the cable core, and the insulation net is fixedly connected with each partition part. After a cable is connected into a switching device, because a plurality of cable cores in the cable need to be connected with corresponding switching interfaces respectively, an outer sheath layer and an armor layer of a part of the cable need to be stripped, and the cable cores are exposed. At the moment, the cable core is coated with the insulation net, and the insulation net is divided into independent spaces through the partition parts, so that the insulation effect can be achieved, electromagnetic interference between the outside and the cable core is prevented, and the signal stability of the cable switching part is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable switching, in particular to a cable switching device. Background Art

[0002] Cable switching is a crucial technical step in power transmission and communications, involving the transfer of power and signals from one cable system to another. The core of cable switching is to connect cables of different types and specifications through appropriate connections to achieve power or signal transmission. Key factors to consider during the switching process include the cable's conductivity, mechanical strength, insulation properties, and anti-interference capabilities.

[0003] Common cable connection methods include direct connection and adapter connection. Direct connection directly connects two cable segments by welding or crimping. This method is suitable for connecting cables of the same type, offering a secure connection and stable transmission. Adapter connection utilizes a dedicated adapter or junction box to connect cables, centralizing multiple cable terminals. This facilitates the connection and maintenance of cables of varying specifications or types, while providing excellent protection and insulation.

[0004] When connecting the adapter, the outer sheath and armor layers at the front end of the cable need to be stripped to expose the inner cable core. After multiple cable cores are connected through the terminal block, the unstripped portion of the cable is fixed to the junction box to ensure connection strength and sealing performance. Although the connecting portion of the cable is protected by the junction box, the cable core in the section where the outer sheath is stripped is exposed (the outer sheath layer usually also contains an electromagnetic shielding layer). Once the sealing component is damaged, there is still a risk of external environmental and electromagnetic interference. Especially for high-power cable cores, the electromagnetic interference generated by the cable core itself can also affect adjacent cable cores, resulting in unstable signal transmission or even signal loss. Utility Model Content

[0005] The purpose of the present utility model is to provide a cable switching device to solve the above problems in the prior art.

[0006] A cable switching device is provided, comprising:

[0007] A housing having a crimping connector for fixing the cable disposed therein;

[0008] The adapter is provided with a plurality of adapter interfaces, and a partition portion is formed between two adjacent adapter interfaces;

[0009] The insulating net is covered around the outer periphery of the cable core when the cable core is connected to the corresponding adapter interface, and the insulating net is fixedly connected to each partition part.

[0010] Furthermore, the adapter includes a spigot core and a fixed body. The fixed body is an integral transition structure formed by a truncated cone and a cylinder. The plurality of adapter interfaces are arranged circumferentially along the truncated cone portion of the fixed body, and the partition extends from the truncated cone portion of the fixed body to the entire length of the cylindrical portion. Since the multiple strands of cable cores within the cable are typically twisted and arranged circumferentially on the cable cross-section, the adapter is formed in a cylindrical and truncated cone shape to accommodate the twisted configuration of the cable cores.

[0011] Furthermore, the portion of the fixed body extending from each adapter toward the cylindrical body is recessed inward to form a groove, with the partition located between two adjacent grooves. After the cable core is connected to the adapter, it can be fully embedded within the groove, improving the neatness of the cable core arrangement. After being covered with the insulating mesh, the cable core is also more stable and prevented from moving due to the restraint of the groove.

[0012] Furthermore, after the cable core is connected to the corresponding adapter, the insulation mesh is wound around the periphery of the fixed body, and the number of turns of the insulation mesh is ≥3. Having a certain number of turns of the insulation mesh can improve fault tolerance and prevent the insulation effect from being reduced due to damage to the insulation mesh. At the same time, increasing the overall thickness of the insulation mesh can also improve the insulation performance and mechanical protection capability of the insulation mesh.

[0013] Furthermore, the insulating mesh is a mesh structure formed by weaving copper wires. The mesh structure layer woven by copper wires can effectively resist the influence of external interference signals, including electromagnetic waves, electromagnetic radiation, radio frequency signals, etc.

[0014] Furthermore, the insulating mesh and the partition portion are fixed by welding, which can form a continuous weld to ensure that two adjacent cable cores can be isolated and improve the sealing effect.

[0015] Furthermore, the insulation net is fixed to the partition part by screws. The screw fixation is relatively simple, does not damage the structure of the insulation net, and is convenient for disassembly of the insulation net.

[0016] Furthermore, an insulating sleeve is provided at the connection portion between the adapter and the cable core, and the covered end portion of the insulating net is located on the insulating sleeve. The insulating sleeve can eliminate the gap between the cable core and the adapter, preventing electromagnetic leakage caused by the insulation net being unable to fill the gap.

[0017] Furthermore, the insulating sleeve is threadedly connected to the adapter interface, making it convenient to assemble and disassemble the insulating sleeve and the adapter interface.

[0018] Furthermore, the covered end of the insulation net contacts the outer sheath of the cable after stripping, and an insulating adhesive layer is applied between the covered end of the insulation net and the outer sheath of the cable. The insulating adhesive layer can eliminate the gap between the insulation net and the outer sheath of the cable, thereby preventing electromagnetic leakage caused by the gap.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] After the cable is connected to the adapter, the multiple cable cores inside the cable need to be connected to the corresponding adapter interfaces separately, which requires stripping some of the cable's outer sheath and armor, exposing the cable core. In this case, wrapping the cable core with an insulating net and separating it into separate compartments with partitions provides insulation, preventing electromagnetic interference from the outside and between the cable cores, and improving signal stability in the cable adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present drawings or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present drawings. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of a cable switching device;

[0023] Figure 2 This is a schematic structural diagram of an adapter provided in an embodiment of the present utility model.

[0024] In the figure: 1. Shell; 11. Crimping joint; 2. Adapter; 21. Adapter interface; 22. Partition; 23. Socket core; 24. Fixed body; 25. Groove; 26. Insulating sleeve; 3. Insulating net; 4. Insulating rubber layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of this application.

[0026] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0027] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repetitive descriptions of substantially identical structures may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art. Furthermore, the drawings and the following description are provided to facilitate a thorough understanding of this application by those skilled in the art and are not intended to limit the subject matter recited in the claims.

[0028] See also Figure 1-2 As shown, in an embodiment of the present invention, a cable adapter device includes a housing 1, an adapter 2, and an insulating net 3. A crimping head 11 for securing the cable is disposed within the housing 1. The adapter 2 is provided with a plurality of adapter interfaces 21, with partitions 22 formed between adjacent adapter interfaces 21. When the cable core is connected to a corresponding adapter interface 21, the insulating net 3 wraps around the outer periphery of the cable core, and the insulating net 3 is fixedly connected to each partition 22.

[0029] After stripping off part of the outer sheath and armor layer of the cable, the internal cable cores are exposed, and the cable is placed in the outer casing 1. The crimping joint 11 is pressed on the outer sheath that has not been stripped to fix the cable. At the same time, each cable core is connected to the corresponding transfer interface 21 to achieve transfer. After the cable core is transferred, the insulating net 3 is used to cover the outside of the cable core as a whole to eliminate the influence of the external environment and external electromagnetic interference. The insulating net 3 is then fixed to each partition part 22 so that each cable core is in an independent covering space, eliminating the influence of electromagnetic interference between the cable cores. At the same time, under the cover of the insulating net 3, the cable core will not move, which can prevent the cable core from contacting the outer casing 1 and causing a short circuit.

[0030] The adapter 2 includes a socket core 23 and a fixed body 24. The socket core 23 is used to connect two cables of different models and specifications to complete signal transmission, and the fixed body 24 is used to fix the cable core. The fixed body 24 is a transition structure formed by integrating a truncated cone and a cylindrical body, so that each adapter interface 21 can be arranged along the circumference of the fixed body 24, so that the arrangement of the adapter interface 21 is compatible with the twisting form of the cable core. The partition portion 22 is formed by extending from the truncated cone portion of the fixed body 24 to the entire length of the cylindrical portion. When the insulating net 3 is wrapped around the outer periphery of the fixed body 24, the coverage range and partition length of the insulating net 3 can cover the entire length range of the cable core, avoiding electromagnetic leakage caused by uncovered or partitioned areas.

[0031] The portion of the fixing body 24 extending from each adapter interface 21 toward the cylindrical body is recessed inward to form a groove 25, with the partition 22 located between adjacent grooves 25. Under the pressure of the insulating mesh 3, the grooves 25 confine the cable core within the slot, guiding its trajectory and orientation, preventing it from moving and short-circuiting between cores. The grooves 25 make the partition 22 more prominent in appearance and tactile feel, further facilitating the securing of the insulating mesh 3 to the partition 22.

[0032] After the cable core is connected to the corresponding adapter 21, the insulating mesh 3 is wound around the outer periphery of the fixing body 24 to cover the cable core, as the fixing body 24 is cylindrical. The number of turns of the insulating mesh 3 is ≥3 to ensure the mechanical strength and sealing insulation performance of the insulating mesh 3.

[0033] The insulation mesh 3 is a mesh structure woven from copper wire. This mesh effectively resists the effects of external interference signals, including electromagnetic waves, electromagnetic radiation, and radio frequency signals, preventing these interference signals from disrupting and damaging the cable core's transmission, thereby maintaining stable signal transmission. The copper material also enhances the mechanical and tensile strength of the insulation mesh 3 and offers good corrosion resistance, effectively protecting the cable core from external environmental influences. Furthermore, the copper mesh exhibits a certain degree of ductility, allowing it to conform to various shapes and be wrapped around the cable core.

[0034] Specifically, the insulating mesh 3 is secured to the partition portion 22 by welding. This welding creates a continuous sealing line through the weld seam, enhancing the insulation effect of the insulating mesh 3. Laser welding is preferably used as it features high welding precision and a small heat-affected zone, thus minimizing the impact of welding on the cable core.

[0035] Specifically, the insulation mesh 3 is secured to the partition 22 with screws. This mechanical fixation minimizes structural impact on the insulation mesh 3 and prevents damage to the cable core due to errors. Unlike permanent fixation methods such as welding, screw fixation allows for easy assembly and disassembly of the insulation mesh 3, providing greater flexibility.

[0036] An insulating sleeve 26 is provided at the connection between the adapter 21 and the cable core, and the covered end of the insulation net 3 is located on the insulating sleeve 26. When the insulation net 3 is wound around the cable core, the winding range of the insulation net 3 extends from the insulation sleeve 26 to the unstripped outer sheath layer of the cable, ensuring that the cable core is completely covered by the insulation net 3. The insulating sleeve 26 is used to eliminate the gap between the insulation net 3 and the adapter 21, preventing electromagnetic interference from entering through this gap and improving the sealing effect.

[0037] Furthermore, the insulating sleeve 26 is threadedly connected to the adapter interface 21. The outer periphery of the insulating sleeve 26 is provided with external threads, and the inner hole of the adapter interface 21 is provided with internal threads. During assembly, the insulating sleeve 26 is passed through the cable core for a distance. After the cable core is connected to the adapter interface 21, the insulating sleeve 26 is then threadedly connected to the adapter interface 21. This structure provides a connection space for the cable core, facilitating the mating of the cable core and the adapter interface 21.

[0038] The covered end of the insulation net 3 contacts the stripped outer sheath of the cable, and an insulating adhesive layer 4 is applied between the covered end of the insulation net 3 and the outer sheath of the cable. The insulating adhesive layer 4 eliminates the gap between the insulation net 3 and the outer sheath of the cable, preventing electromagnetic leakage caused by the gap and providing a sealing effect.

[0039] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are merely examples, and any embodiments having substantially the same structure and effect as the technical concept within the scope of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the present application, any other embodiments that can be conceived by those skilled in the art and that combine some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. A cable switching device, characterized in that: include: A housing (1), wherein a crimping joint (11) for fixing a cable is arranged inside the housing (1); An adapter (2), wherein a plurality of adapter interfaces (21) are provided on the adapter (2), and a partition portion (22) is formed between two adjacent adapter interfaces (21); The insulating net (3) is coated around the outer periphery of the cable core when the cable core of the cable is connected to the corresponding transfer interface (21). The insulating net (3) is fixedly connected to each partition part (22).

2. A cable switching device according to claim 1, characterized in that: The adapter (2) comprises a socket core (23) and a fixed body (24); the fixed body (24) is a transition structure formed by integrally forming a truncated cone and a cylindrical body; a plurality of adapter interfaces (21) are arranged circumferentially along the truncated cone portion of the fixed body (24); and the partition portion (22) is formed by extending from the truncated cone portion of the fixed body (24) in the entire length direction toward the cylindrical portion.

3. A cable switching device according to claim 2, characterized in that: The portion of the fixed body (24) extending from each adapter interface (21) toward the cylindrical body is recessed inward to form a groove (25), and the partition portion (22) is located between two adjacent grooves (25).

4. A cable switching device according to claim 2, characterized in that: When the cable core of the cable is connected to the corresponding transfer interface (21), the insulating net (3) is wound around the periphery of the fixed body (24), and the number of winding turns of the insulating net (3) is ≥3.

5. A cable switching device according to claim 1, characterized in that: The insulating net (3) is a mesh structure formed by weaving copper wires.

6. A cable switching device according to claim 1, characterized in that: The insulating net (3) and the partition portion (22) are fixed by welding.

7. A cable switching device according to claim 1, characterized in that: The insulating net (3) and the partition portion (22) are fixed by means of screws.

8. A cable switching device according to claim 1, characterized in that: The connection portion between the transfer interface (21) and the cable core is provided with an insulating sleeve (26), and the sheathed end portion of the insulating net (3) is located on the insulating sleeve (26).

9. A cable switching device according to claim 8, characterized in that: The insulating sleeve (26) is threadedly connected to the adapter interface (21).

10. The cable switching device according to claim 1, characterized in that: The coated end of the insulating net (3) is in contact with the outer sheath of the cable after peeling, and an insulating rubber layer (4) is coated between the coated end of the insulating net (3) and the outer sheath of the cable.

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