High-voltage cable grounding wire device

Abstract

The utility model relates to a high-voltage cable grounding wire device. The technical problem to be solved by the utility model is to provide a high-voltage cable grounding wire device. The technical scheme adopted by the utility model is as follows: the high-voltage cable grounding device comprises a high-voltage cable, a grounding wire assembly and a cold shrinkage terminal, three three-phase cable copper sleeve layers which are separately led out are formed after the high-voltage cable is stripped, the grounding wire assembly comprises a grounding wire, a metal frame and an elastic piece, and the metal frame comprises a metal frame upper supporting part; metal frame side attaching parts are arranged on the metal frame upper supporting part around the arc at intervals, arc-shaped contact grooves are formed in the metal frame side attaching parts, and a filling opening is formed between the two metal frame side attaching parts. Compared with the prior art, the utility model has the advantages that the elastic piece is additionally arranged in the metal frame, and the elastic piece can continuously provide pressure to ensure that the metal frame and the copper sleeve layer of the three-phase cable always keep close contact, so that the contact between the grounding wire and the high-voltage cable is more stable, the electrical connection is reliable, and the potential safety hazard caused by poor contact is reduced.

Description

Technical Field

[0001] The utility model relates to a high-voltage cable grounding wire device. Background Art

[0002] A high-voltage cable grounding device is a safety device used to ground high-voltage cables. It is primarily used to prevent dangerous electrical potentials in high-voltage cables due to equipment failures or overvoltages, ensuring the safety of personnel and the normal operation of equipment. Traditional high-voltage cable grounding devices place a triangular bracket between the three-phase copper sheaths of the high-voltage cable, contacting the three-phase copper sheaths. One end of the grounding wire is welded to the triangular bracket and then wrapped around the outside of the three-phase copper sheath. In actual use, it was found that the triangular bracket and the three-phase copper sheaths were easily affected by factors such as cable pulling, bending, and vibration, resulting in poor contact. Consequently, the grounding wire cannot reliably contact the three-phase copper sheaths, posing a safety hazard. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the present invention is to provide a high-voltage cable grounding wire device.

[0004] The technical solution adopted by the high-voltage cable grounding wire device of the present invention: includes a high-voltage cable, a grounding wire assembly, and a cold shrink terminal sleeved on the high-voltage cable. After the high-voltage cable is stripped, three three-phase cable copper sheaths are formed that are led out separately. It is characterized in that the grounding wire assembly includes a grounding wire, a metal frame placed between the three three-phase cable copper sheaths, and an elastic member placed in the metal frame. The metal frame includes a metal frame upper support portion, and the metal frame upper support portion is provided with metal frame side fitting portions at intervals around a circular arc. The metal frame side fitting portion is provided with an arc-shaped contact groove for fitting with the three-phase cable copper sheaths. A filling port is formed between the two metal frame side fitting portions. The elastic member is provided with an elastic member arc-shaped yielding groove corresponding to the arc-shaped contact groove and an elastic member extrusion portion placed at the filling port. The grounding wire includes a grounding wire docking portion connected to the metal frame upper support portion, a grounding wire winding portion wound around the outside of the three three-phase cable copper sheaths, and a grounding wire grounding portion led out to the outside.

[0005] The metal frame upper support portion is provided with a metal frame positioning column, the grounding wire docking portion is provided with a grounding wire positioning hole connected to the metal frame positioning column, and the grounding wire docking portion and the metal frame positioning column are riveted together.

[0006] The metal frame is made of copper, and the elastic member is made of silicone.

[0007] The ground wire winding portion is reinforced by a clip spring.

[0008] The advantages of the high-voltage cable grounding wire device of the present invention are: an elastic part is added in the metal frame, the elastic part can continuously provide pressure, ensuring that the metal frame and the copper sheath of the three-phase cable always maintain close contact, making the contact between the grounding wire and the high-voltage cable more stable, the electrical connection reliable, and reducing the safety hazards caused by poor contact; the elastic part has flexibility and buffering capacity, can adapt to the deformation of the cable under force, reduce the impact and stress concentration caused by bending or stretching of the cable, and ensure that the contact surface continues to fit closely. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 This is a structural diagram of the utility model high-voltage cable grounding wire device;

[0011] Figure 2 It is a structural diagram of the grounding wire assembly of the utility model;

[0012] Figure 3 It is a structural diagram of the metal frame of the utility model;

[0013] Figure 4 It is a structural diagram of the elastic member of the utility model;

[0014] Figure 5 It is a structural diagram of the grounding wire of the utility model. DETAILED DESCRIPTION

[0015] like Figure 1-5As shown, the high-voltage cable grounding wire device involved in the present invention includes a high-voltage cable 1, a grounding wire assembly 2, and a cold shrink terminal 5 sleeved on the high-voltage cable 1. After the high-voltage cable 1 is peeled, three three-phase cable copper sheaths 4 are formed that are led out separately. The grounding wire assembly 2 includes a grounding wire 6, a metal frame 7 placed between the three three-phase cable copper sheaths 4, and an elastic member 8 placed in the metal frame 7. The metal frame 7 includes a metal frame upper support portion 10, and the metal frame upper support portion 10 is provided with a metal frame side fitting portion 11 at intervals around a circular arc. The metal frame side fitting portion 11 is provided with an arc-shaped contact groove 12 for fitting with the three-phase cable copper sheath 4. A filling port 13 is formed between the two metal frame side fitting portions 11. The elastic member 8 is provided with a contact groove 12 that is aligned with the arc contact groove 12. The corresponding elastic arc-shaped yielding groove 15 and the elastic member extrusion portion 16 placed at the filling port 13, the grounding wire 6 includes a grounding wire docking portion 18 connected to the support portion 10 on the metal frame, a grounding wire winding portion 19 wound around the outside of the three three-phase cable copper sheaths 4, and a grounding wire grounding portion 20 led to the outside. An elastic member 8 is added to the metal frame 7. The elastic member 8 can continuously provide pressure to ensure that the metal frame 7 and the three-phase cable copper sheath 4 always maintain close contact, so that the contact between the grounding wire and the high-voltage cable is more stable, the electrical connection is reliable, and the safety hazards caused by poor contact are reduced; the elastic member 8 has flexibility and buffering capacity, can adapt to the deformation of the cable under force, reduce the impact and stress concentration caused by bending or stretching of the cable, and ensure that the contact surface is continuously and tightly fitted.

[0016] A metal frame positioning column 21 is provided on the metal frame upper support portion 10, and a grounding wire positioning hole 22 is provided on the grounding wire docking portion 18, which is connected to the metal frame positioning column 21. The grounding wire docking portion 18 and the metal frame positioning column 21 are riveted together, and the positioning is accurate, the connection is more firm and reliable, and the stability and reliability of the electrical connection are ensured.

[0017] The metal frame 7 is made of copper with good electrical conductivity, and the elastic member 8 is made of silicone, which improves the stable extrusion force and has good shock absorption and impact resistance.

[0018] The ground wire winding portion 19 is reinforced by the clamping spring 3 to further enhance the installation firmness of the ground wire.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A high-voltage cable grounding wire device, comprising a high-voltage cable (1), a grounding wire assembly (2), and a cold shrink terminal (5) sleeved on the high-voltage cable (1), wherein the high-voltage cable (1) is peeled to form three separately led three-phase cable copper sheaths (4), characterized in that: The grounding wire assembly (2) comprises a grounding wire (6), a metal frame (7) placed between the three three-phase cable copper sheaths (4), and an elastic member (8) placed in the metal frame (7), wherein the metal frame (7) comprises a metal frame upper support portion (10), the metal frame upper support portion (10) is provided with metal frame side fitting portions (11) at intervals around an arc, and the metal frame side fitting portions (11) are provided with arc-shaped contact grooves (12) for fitting with the three-phase cable copper sheaths (4), and the two metal frames are provided with a metal frame upper support portion (10), wherein the metal frame upper support portion (10) is provided with a metal frame side fitting portion (11), and the metal frame side fitting portion (11) is provided with an arc-shaped contact groove (12) for fitting with the three-phase cable copper sheath (4). A filling port (13) is formed between the side fitting portions (11); the elastic member (8) is provided with an elastic member arc-shaped yielding groove (15) corresponding to the arc-shaped contact groove (12) and an elastic member extrusion portion (16) located at the filling port (13); the grounding wire (6) comprises a grounding wire docking portion (18) connected to the support portion (10) on the metal frame, a grounding wire winding portion (19) wound around the outside of the three three-phase cable copper sheaths (4), and a grounding wire grounding portion (20) led to the outside.

2. The high-voltage cable grounding wire device according to claim 1, characterized in that: A metal frame positioning column (21) is provided on the metal frame upper support portion (10), a grounding wire positioning hole (22) connected to the metal frame positioning column (21) is provided on the grounding wire docking portion (18), and the grounding wire docking portion (18) and the metal frame positioning column (21) are riveted together.

3. The high-voltage cable grounding wire device according to claim 1, characterized in that: The metal frame (7) is made of copper, and the elastic member (8) is made of silicone.

4. The high-voltage cable grounding wire device according to claim 1, characterized in that: The ground wire winding portion (19) is reinforced by a clamping spring (3).

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