High voltage aluminium alloy cable joint

Abstract

The utility model discloses a high -pressure aluminum alloy cable joint, including the conductor connection hardware, the one end of conductor connection hardware is connected with the connecting piece, the one end of conductor connection hardware is connected with the cable body, the one -week outside wall of cable body is equipped with the rubber cover, the hexagonal aluminum alloy protection pipe is equipped with in the rubber cover, be equipped with the bearing cavity in the hexagonal aluminum alloy protection pipe, the one side fixed with cylindrical aluminum alloy reinforcing pipe in the bearing cavity, the rubber cover penetrates cylindrical aluminum alloy reinforcing pipe. The utility model has greatly improved the compression resistance of joint, when facing topography subsidence or extrusion of external force, can effectively disperse pressure, avoid the plastic deformation of joint, guarantee the stable operation of cable joint under complex environment, still further strengthened the leakproofness, prevent moisture and dust from entering, prolonged the service life of joint, ensure the safe operation of cable under different environment.

Description

Technical Field

[0001] This utility model relates to the field of cable connector technology, and in particular to a high-voltage aluminum alloy cable connector. Background Technology

[0002] With the continuous advancement of urban construction and the increasing improvement of infrastructure, the environment for cable laying is becoming increasingly complex, and terrain subsidence has become a common problem. When terrain subsidence occurs, cable joints are subjected to uneven external forces. Under such circumstances, the single metal shell of traditional joints is prone to plastic deformation due to the lack of effective pressure dispersion and buffering mechanisms. Once plastic deformation occurs, the sealing performance of the joint will be severely affected, potentially allowing impurities such as moisture and dust to enter, thereby causing electrical faults and affecting the normal transmission of power.

[0003] Furthermore, under dynamic loads, such as those caused by natural factors like wind and earthquakes, as well as human factors like vehicle movement and mechanical vibrations, traditional joints struggle to achieve a balance between deformation recovery and long-term sealing. This not only shortens the joint's service life and increases maintenance costs but may also pose safety hazards and threaten the stable operation of the power system. Therefore, we propose a high-voltage aluminum alloy cable joint to address these issues. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a high-voltage aluminum alloy cable connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-voltage aluminum alloy cable connector includes a conductor connecting fitting, one end of which is connected to a connecting piece, and the other end of which is connected to a cable body. A rubber sleeve is fitted around the outer perimeter of the cable body, and a hexagonal aluminum alloy protective tube is inserted through the rubber sleeve. A bearing cavity is provided inside the hexagonal aluminum alloy protective tube, and a cylindrical aluminum alloy reinforcing tube is fixed to one side of the bearing cavity. The rubber sleeve passes through the cylindrical aluminum alloy reinforcing tube, and a hexagonal closed cover is fixed to one side of the hexagonal aluminum alloy protective tube. The bearing cavity is filled with a non-Newtonian fluid.

[0007] Preferably, the cylindrical aluminum alloy reinforcing tube has a cylindrical mounting cavity inside, and the rubber sleeve passes through the cylindrical mounting cavity.

[0008] Preferably, one side of the hexagonal closed cover plate is provided with a through hole, and the hexagonal closed cover plate is welded to one side of the hexagonal aluminum alloy protective tube.

[0009] Preferably, the connecting piece is provided with mounting holes.

[0010] Preferably, a silane coupling agent is added to the non-Newtonian fluid.

[0011] Preferably, the outer side of the hexagonal aluminum alloy protective tube is coated with a semi-conductive coating.

[0012] In this invention, a rubber sleeve is fitted over the outside of the cable body. Utilizing the excellent flexibility of rubber, it tightly wraps the cable, forming the first protective barrier to prevent moisture and dust from entering the cable. A cylindrical aluminum alloy reinforcing tube serves as an internal support structure, enhancing the overall strength of the joint. A hexagonal aluminum alloy protective tube provides external stability protection. The addition of a silane coupling agent to the non-Newtonian fluid improves the interfacial properties between the non-Newtonian fluid and other materials, increasing its stability in the joint. During normal operation, the rubber sleeve acts as a buffer and seal, protecting the cable body from external impacts and impurities. When encountering terrain subsidence or external pressure, the hexagonal aluminum alloy protective tube, with its stable hexagonal structure, disperses pressure and avoids localized stress concentration. Simultaneously, the non-Newtonian fluid responds rapidly; its viscosity increases rapidly under rapid impact or pressure, exhibiting solid-like properties, increasing the joint's pressure resistance, effectively resisting external pressure, and protecting the internal cable body and conductors. The connector includes components such as connector fittings and connecting plates. Conductor connector fittings are used to achieve electrical connections between cables. Connecting plates serve as auxiliary connections and fixation. Mounting holes are used to install and fix the entire connector structure. Cylindrical mounting cavities provide specific installation space for related components. Bearing cavities can be used to support some components or serve a specific containment function. Hexagonal closed covers provide closed protection for hexagonal aluminum alloy protective tubes. Through holes may be used to achieve some functions such as communication or wire threading. When the pressure is removed, the non-Newtonian fluid can flow like a liquid and return to its original shape, which helps the connector to achieve deformation recovery under dynamic loads and maintain long-lasting sealing.

[0013] This utility model has the following advantages:

[0014] 1. The combination structure of hexagonal aluminum alloy protective tube and cylindrical aluminum alloy reinforcing tube, as well as the filling of non-Newtonian fluid, greatly improves the pressure resistance of the joint. When facing terrain subsidence or external extrusion, it can effectively disperse pressure, avoid plastic deformation of the joint, and ensure the stable operation of the cable joint in complex environments.

[0015] 2. The unique rheological properties of non-Newtonian fluids enable the joint to recover its shape under dynamic loads. When the pressure is removed, the non-Newtonian fluid returns to its original shape, ensuring the sealing performance of the joint. At the same time, the use of rubber sleeves further enhances the sealing performance, prevents moisture and dust from entering, extends the service life of the joint, and reduces maintenance costs.

[0016] 3. Aluminum alloy material itself has good strength and corrosion resistance, and can adapt to various harsh environmental conditions. In addition, the semi-conductive coating sprayed on the outside of the hexagonal aluminum alloy protective tube can improve the electric field distribution, improve the electrical performance of the joint, and ensure the safe operation of the cable in different environments.

[0017] In summary, this invention significantly improves the pressure resistance of the joint, effectively dispersing pressure when facing terrain subsidence or external extrusion, preventing plastic deformation of the joint, ensuring stable operation of the cable joint in complex environments, further enhancing sealing performance, preventing moisture and dust from entering, extending the service life of the joint, and ensuring the safe operation of cables in different environments. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 Structural diagram of the hexagonal aluminum alloy protective tube and hexagonal closed cover plate of this utility model;

[0020] Figure 3 Structural diagram of the rubber sleeve and cable body of this utility model;

[0021] Figure 4 The structural diagram shows the cylindrical aluminum alloy reinforcing tube and the hexagonal aluminum alloy protective tube of this utility model.

[0022] In the diagram: 1. Cable body, 2. Rubber sheath, 3. Conductor connecting hardware, 4. Mounting hole, 5. Connecting piece, 6. Cylindrical mounting cavity, 7. Cylindrical aluminum alloy reinforcing tube, 8. Bearing cavity, 9. Hexagonal aluminum alloy protective tube, 10. Hexagonal closed cover plate, 11. Through hole, 12. Non-Newtonian fluid. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A high-voltage aluminum alloy cable connector includes a conductor connecting hardware 3, a connecting piece 5 connected to one end of the conductor connecting hardware 3, and a cable body 1 connected to one end of the conductor connecting hardware 3. A rubber sleeve 2 is provided on the outer wall of the cable body 1. The rubber has good flexibility and sealing properties, which can tightly wrap the cable body to prevent moisture, dust and other impurities from entering and ensure the normal operation of the cable. At the same time, the rubber sleeve can also play a buffering role to further protect the cable from the impact of external shocks.

[0025] A hexagonal aluminum alloy protective tube 9 is provided through the rubber sleeve 2. The hexagonal structure has high stability and resistance to deformation. When subjected to external pressure, it can disperse the pressure and avoid local stress concentration, thereby effectively protecting the internal structure. The aluminum alloy material itself has good strength and corrosion resistance and can adapt to various harsh environmental conditions.

[0026] The hexagonal aluminum alloy protective tube 9 has a bearing cavity 8 inside. A cylindrical aluminum alloy reinforcing tube 7 is fixed on one side of the bearing cavity 8 as an internal support structure, which further enhances the overall strength of the joint. It works in conjunction with the hexagonal aluminum alloy tube to provide a relatively stable space for non-Newtonian fluids.

[0027] A rubber sleeve 2 penetrates the cylindrical aluminum alloy reinforcing tube 7. A hexagonal closed cover plate 10 is fixed to one side of the hexagonal aluminum alloy protective tube 9. The bearing cavity 8 is filled with a non-Newtonian fluid 12. The non-Newtonian fluid 12 has unique rheological properties. When subjected to rapid impact or pressure, its viscosity increases rapidly, exhibiting properties similar to a solid; while under slow stress, it can flow like a liquid. Filling the joint with a non-Newtonian fluid allows for a rapid response to terrain subsidence or external pressure, increasing the joint's pressure resistance. Furthermore, it can return to its original shape after the pressure disappears, helping to balance deformation recovery under dynamic loads.

[0028] The cylindrical aluminum alloy reinforcing tube 7 has a cylindrical mounting cavity 6 inside, the rubber sleeve 2 passes through the cylindrical mounting cavity 6, the hexagonal closed cover plate 10 has a through hole 11 on one side, the hexagonal closed cover plate 10 is welded to one side of the hexagonal aluminum alloy protective tube 9, the connecting piece 5 has a mounting hole 4, the mounting hole 4 connects the connecting piece 5 to the corresponding equipment or bracket by bolts.

[0029] The non-Newtonian fluid 12 contains a silane coupling agent, which is an organosilicon compound with a special structure that can improve the interfacial properties of the non-Newtonian fluid with other materials.

[0030] The outer side of the hexagonal aluminum alloy protective tube 9 is coated with a semi-conductive coating. The semi-conductive coating can effectively improve the electric field distribution, reduce the electric field concentration phenomenon, and improve the electrical performance and safety of the joint.

[0031] In this invention, the rubber sleeve 2 is fitted over the outside of the cable body 1. Utilizing the excellent flexibility of rubber, it tightly wraps the cable, forming the first protective barrier to prevent moisture and dust from entering the cable. The cylindrical aluminum alloy reinforcing tube 7 serves as an internal support structure, enhancing the overall strength of the joint; the hexagonal aluminum alloy protective tube 9 provides external stable protection. The non-Newtonian fluid 12, with added silane coupling agent, improves the interfacial properties between the non-Newtonian fluid and other materials, enhancing its stability in the joint. During normal operation, the rubber sleeve 2 acts as a buffer and seal, protecting the cable body 1 from external impacts and impurities. When encountering terrain subsidence or external pressure, the hexagonal aluminum alloy protective tube 9 utilizes its stable hexagonal structure to disperse pressure and prevent localized stress concentration. Meanwhile, the non-Newtonian fluid 12 responds rapidly, its viscosity increasing quickly under rapid impact or pressure, exhibiting solid-like properties. This increases the joint's pressure resistance, effectively resisting external pressure and protecting internal components such as the cable body 1, conductor connecting hardware 3, and connecting piece 5. The conductor connecting hardware 3 is used to achieve electrical connections between cables, and the connecting piece 5 serves as an auxiliary connection and fixation mechanism. The mounting hole 4 can be used to install and fix the entire joint structure. The cylindrical mounting cavity 6 provides specific installation space for related components. The bearing cavity 8 can be used to support some components or serve a specific containment function. The hexagonal closed cover 10 seals and protects the hexagonal aluminum alloy protective tube 9. The through hole 11 may be used to achieve functions such as connection or wire threading. When the pressure is removed, the non-Newtonian fluid 12 can flow like a liquid and return to its original shape, helping the joint to achieve deformation recovery under dynamic loads and maintain long-lasting sealing.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-voltage aluminum alloy cable connector, comprising conductor connecting fittings (3), characterized in that, One end of the conductor connecting fitting (3) is connected to a connecting piece (5), and the other end of the conductor connecting fitting (3) is connected to a cable body (1). A rubber sleeve (2) is fitted around the outer wall of the cable body (1). A hexagonal aluminum alloy protective tube (9) is inserted through the rubber sleeve (2). A bearing cavity (8) is provided inside the hexagonal aluminum alloy protective tube (9). A cylindrical aluminum alloy reinforcing tube (7) is fixed on one side of the bearing cavity (8). The rubber sleeve (2) passes through the cylindrical aluminum alloy reinforcing tube (7). A hexagonal closed cover plate (10) is fixed on one side of the hexagonal aluminum alloy protective tube (9). The bearing cavity (8) is filled with a non-Newtonian fluid (12).

2. The high-voltage aluminum alloy cable connector according to claim 1, characterized in that: The cylindrical aluminum alloy reinforcing tube (7) is provided with a cylindrical mounting cavity (6), and the rubber sleeve (2) penetrates the cylindrical mounting cavity (6).

3. A high-voltage aluminum alloy cable connector according to claim 1, characterized in that: The hexagonal closed cover plate (10) has a through hole (11) on one side, and the hexagonal closed cover plate (10) is welded to one side of the hexagonal aluminum alloy protective tube (9).

4. A high-voltage aluminum alloy cable connector according to claim 1, characterized in that: The connecting piece (5) is provided with mounting holes (4).

5. A high-voltage aluminum alloy cable connector according to claim 1, characterized in that: The non-Newtonian fluid (12) contains a silane coupling agent.

6. A high-voltage aluminum alloy cable connector according to claim 1, characterized in that: The outer side of the hexagonal aluminum alloy protective tube (9) is coated with a semi-conductive coating.

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