CN219067830U

CN219067830U - Low-voltage three-core terminal connector

Info

Publication number: CN219067830U
Application number: CN202223551767.2U
Authority: CN
Inventors: 左平胜; 左红炎
Original assignee: Hubei Dele Electric Power Technology Co ltd
Current assignee: Hubei Dele Electric Power Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-23
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of cable terminals and discloses a low-voltage three-core terminal connector which comprises a cable main pipe, wherein a plurality of cable branch pipes are fixedly arranged on the outer wall of one side of the cable main pipe, insulating pipes are fixedly sleeved on the outer walls of pipe bodies of the cable branch pipes, terminal pipes are fixedly sleeved on the outer walls of pipe bodies of the other ends of the insulating pipes, terminals are fixedly sleeved in the other ends of the terminal pipes, stress cones are fixedly arranged in the terminal pipes, and insulating layers are fixedly arranged on the inner walls of the terminal pipes. According to the utility model, the constant force spring can firmly connect the shielding ground wire on the branch wire core without welding, the shielding ground wire can prevent the cable from generating insulation breakdown fault to burn through the insulation tube, the stress cone can improve the electric field distribution at the tail end of the metal sheath and reduce the electric field intensity at the edge of the metal sheath, and the first color band, the second color band and the third color band can distinguish the phase marks of the wire outlet ends, so that the installation is convenient.

Description

Low-voltage three-core terminal connector

Technical Field

The utility model relates to the technical field of cable terminals, in particular to a low-voltage three-core terminal connector.

Background

The cable terminal is waterproof, stress control, shielding and insulating, has good electrical property and mechanical property, can be used for a long time under various severe environmental conditions, has the advantages of light weight, convenient installation and the like, is widely applied to various fields such as electric power, petrochemical industry, metallurgy, railway ports and buildings, and is of an integrated structure generally and difficult to install.

Through searching, the prior patent (publication number: CN 205160021U) discloses a three-core cable terminal, which comprises a cable support sleeve arranged at the tail end of a cable, wherein three stress pipes are uniformly arranged on the cable support sleeve, the front end of each stress pipe is provided with an insulating pipe, a copper shielding layer and a semiconducting layer are connected between each stress pipe and each insulating pipe, the copper shielding layer is arranged close to each stress pipe, a terminal sleeve is sleeved outside each stress pipe, each copper shielding layer, each semiconducting layer and each insulating pipe, the terminal sleeve extends from the joint of each stress pipe and each copper shielding layer to the front end of each insulating pipe, the front end of each insulating pipe is connected with a connecting terminal, and the joint of each insulating pipe and each connecting terminal is wrapped with a sealed insulating pipe.

The existing device has the advantages of simple structure and reasonable design, but has the problems of no phase ribbon convenient to observe and no ground wire, so that the insulation tube is burnt through when the linear installation is difficult to identify and the insulation breakdown fault occurs to the cable, and therefore, a low-voltage three-core terminal connector is provided by a person skilled in the art to solve the problems in the background technology.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a low-voltage three-core terminal connector, wherein a constant force spring can firmly connect a shielding ground wire on a branch wire core without welding, the shielding ground wire can prevent a cable from generating insulation breakdown faults to burn through an insulating tube, a stress cone can improve the electric field distribution at the tail end of a metal sheath and reduce the electric field intensity at the edge of the metal sheath, and a first color band, a second color band and a third color band can distinguish phase marks of a wire outlet end, so that the low-voltage three-core terminal connector is convenient to install.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the low-voltage three-core terminal connector comprises a cable main pipe, wherein a plurality of cable branch pipes are fixedly arranged on the outer wall of one side of the cable main pipe, insulating pipes are fixedly sleeved on the outer wall of a pipe body of each cable branch pipe, terminal pipes are fixedly sleeved on the outer wall of the other pipe body of each insulating pipe, terminals are fixedly sleeved in the other pipe of each terminal pipe, stress cones are fixedly arranged in the terminal pipes, and insulating layers are fixedly arranged on the inner walls of the terminal pipes;

the cable main pipe is internally and fixedly sleeved with a main wire core, three branch wire cores are fixedly arranged in the main wire core, and shielding ground wires are fixedly sleeved on the outer walls of the three branch wire cores;

through the technical scheme, the constant force spring can firmly connect the shielded ground wire on the branch wire core without welding, the shielded ground wire can prevent the cable from generating insulation breakdown faults to enable the insulation tube to burn through, the stress cone can improve the electric field distribution at the tail end of the metal sheath and reduce the electric field intensity at the edge of the metal sheath, and the first color band, the second color band and the third color band can distinguish the phase marks of the wire outlet ends, so that the installation is convenient.

Further, the number of the cable branch pipes is three;

through above-mentioned technical scheme, three cable branch pipe can wrap three branch line cores, conveniently carries out insulation protection and installation to three branch line cores.

Further, copper shielding layers are fixedly arranged on the inner walls of the insulating pipe bodies;

through the technical scheme, the copper shielding layer can play a shielding role, so that the shielding sectional area is increased, the flowing current is reduced, and the emitted heat is also reduced.

Furthermore, umbrella skirts are fixedly arranged on the outer walls of the plurality of terminal pipe bodies;

through above-mentioned technical scheme, the umbrella skirt can play rain-proof effect, protects the cable.

Further, the terminals are fixedly sleeved on the terminal pipes respectively through the sealing pipe sleeves;

through above-mentioned technical scheme, conveniently pass through the terminal with three branch line core fixed connection on electrical equipment.

Further, a first color band, a second color band and a third color band are respectively fixedly sleeved on the outer walls of the plurality of terminal pipe bodies;

through above-mentioned technical scheme, mark three branch line cores through first typewriter ribbon, second typewriter ribbon and third typewriter ribbon, conveniently distinguish and install.

Further, the shielding ground wire is fixedly sleeved on the three branch wire cores through a constant force spring;

through the technical scheme, the constant force spring can provide constant supporting force, so that the shielding ground wire is conveniently fixed on the three branch wire cores.

Further, the shielding ground wire is fixedly sleeved on the main wire core through a PVC adhesive tape;

through the technical scheme, the PVC adhesive tape has the advantages of high tensile strength, high temperature resistance and good insulation effect, and is convenient to fix the shielding ground wire on the main wire core.

The utility model has the following beneficial effects:

1. the low-voltage three-core terminal connector provided by the utility model is provided with the insulating pipes, the terminal pipes, the sealing pipe sleeves and the terminals, the three insulating pipes can wrap the three branch cores, the insulating protection effect is achieved on the three branch cores, the terminal pipes can uniformly distribute electric fields at the tail ends of cables, effective control of electric stress is achieved, the terminals are fixedly connected to the terminal pipes through the sealing pipe sleeves, and the branch cores are conveniently installed on electric equipment through the terminals.

2. The low-voltage three-core terminal connector provided by the utility model is provided with the shielding ground wire, the constant force spring and the PVC adhesive tape, wherein the shielding ground wire is wound on the three branch wire cores, so that insulation breakdown faults of a cable can be prevented from being generated to enable an insulation tube to burn through, and the constant force spring and the PVC adhesive tape can respectively fix the shielding ground wire on the branch wire cores and the main wire cores.

3. The low-voltage three-core terminal connector provided by the utility model is provided with the copper shielding layer, the stress cone, the first color band, the second color band and the third color band, wherein the copper shielding layer can play a role in shielding, so that the shielding sectional area is increased, the flowing current is reduced, the emitted heat is also reduced, the stress cone can improve the electric field distribution at the tail end of the metal sheath and reduce the electric field intensity at the edge of the metal sheath, and the first color band, the second color band and the third color band can distinguish the phase marks of the wire outlet ends, thereby facilitating the installation of the branch wire core.

Drawings

FIG. 1 is a schematic illustration of a partial front cross-section of a low pressure three-core terminal fitting according to the present utility model;

FIG. 2 is a schematic side cross-sectional view of an insulating tube of a low voltage three-core terminal fitting according to the present utility model;

FIG. 3 is a schematic illustration of a partial front cross-section of a terminal tube of a low pressure three-core terminal fitting according to the present utility model;

fig. 4 is an axial schematic view of a cable main pipe of a low-voltage three-core terminal connector according to the present utility model.

Legend description:

1. a cable main pipe; 2. a cable branch pipe; 3. an insulating tube; 4. a terminal tube; 5. sealing the pipe sleeve; 6. a terminal; 7. a main wire core; 8. a branch core; 9. shielding the ground wire; 10. a constant force spring; 11. PVC adhesive tape; 12. umbrella skirt; 13. a first color band; 14. a second color band; 15. a third color band; 16. a copper shield layer; 17. a stress cone; 18. an insulating layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the low-voltage three-core terminal connector comprises a cable main pipe 1, wherein a plurality of cable branch pipes 2 are fixedly arranged on the outer wall of one side of the cable main pipe 1, insulating pipes 3 are fixedly sleeved on the outer walls of pipe bodies of the cable branch pipes 2, terminal pipes 4 are fixedly sleeved on the outer walls of the other end pipe bodies of the insulating pipes 3, terminals 6 are fixedly sleeved in the other end pipes of the terminal pipes 4, stress cones 17 are fixedly arranged in the terminal pipes 4, and insulating layers 18 are fixedly arranged on the inner walls of the terminal pipes 4;

the cable main pipe 1 is internally and fixedly sleeved with a main wire core 7, three branch wire cores 8 are fixedly arranged in the main wire core 7, and shielding ground wires 9 are fixedly sleeved on the outer walls of the three branch wire cores 8.

The number of the cable branch pipes 2 is three, the three cable branch pipes 2 can wrap the three branch wire cores 8, the three branch wire cores 8 are convenient to insulate, protect and install, the copper shielding layer 16 is fixedly arranged on the inner wall of the pipe body of the plurality of insulating pipes 3, the copper shielding layer 16 can play a role in shielding, the shielding sectional area is increased, the flowing current is reduced, the emitted heat is also reduced, the umbrella skirt 12 is fixedly arranged on the outer wall of the pipe body of the plurality of terminal pipes 4, the umbrella skirt 12 can play a role in preventing rain, the cable is protected, the plurality of terminals 6 are fixedly sleeved on the plurality of terminal pipes 4 through the plurality of sealing pipe sleeves 5, the three branch wire cores 8 are conveniently fixedly connected on electrical equipment through the terminals 6, the first color ribbon 13, the second color ribbon 14 and the third color ribbon 15 are fixedly sleeved on the outer wall of the pipe body of the plurality of terminal pipes 4 respectively, the three branch wire cores 8 are marked through the first color ribbon 13, the second color ribbon 14 and the third color ribbon 15, distinguishing and installation are convenient, the shielding ground wire 9 is fixedly sleeved on the three branch wire cores 8 through the constant force spring 10, the constant force spring 10 can provide constant supporting force, the shielding ground wire 9 is conveniently fixed on the three branch wire cores 8, the shielding ground wire 9 is fixedly sleeved on the main wire core 7 through the PVC adhesive tape 11, the PVC adhesive tape 11 has high tensile strength, high temperature resistance and good insulation effect, and the shielding ground wire 9 is conveniently fixed on the main wire core 7.

Working principle: when the device is used, the shielding ground wire 9 is wound on the three branch wire cores 8, the constant force spring 10 is fixedly sleeved on the three branch wire cores 8, the shielding ground wire 9 is wound on the main wire core 7 through the PVC adhesive tape 11, so that the shielding ground wire 9 is fixed, the three branch wire cores 8 respectively penetrate through the cable branch pipes 2, the main wire core 7 is sleeved in the cable main pipe 1, the three insulating pipes 3 are respectively sleeved on the three branch wire cores 8 and the three cable branch pipes 2, the three terminal pipes 4 are respectively sleeved on the three branch wire cores 8 and the three insulating pipes 3, the umbrella skirt 12 has a rainproof effect, a protective effect is achieved on the cable, the stress cone 17 in the terminal pipes 4 can improve the distribution of an electric field at the tail end and reduce the electric field intensity at the edge, the first color ribbon 13, the second color ribbon 14 and the third color ribbon 15 on the three terminal pipes 4 conveniently distinguish and install the three branch wire cores 8, the three terminals 6 are respectively sleeved in the three terminal pipes 4 through the sealing sleeve 5, and the three wire cores 8 are conveniently installed on electrical equipment.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a low pressure three-core terminal connects, includes cable main pipe (1), its characterized in that: a plurality of cable branch pipes (2) are fixedly arranged on the outer wall of one side of the cable main pipe (1), insulating pipes (3) are fixedly sleeved on the outer wall of the pipe body of each cable branch pipe (2), terminal pipes (4) are fixedly sleeved on the outer wall of the pipe body of the other end of each insulating pipe (3), terminals (6) are fixedly sleeved in the other end of each terminal pipe (4), stress cones (17) are fixedly arranged in the terminal pipes (4), and insulating layers (18) are fixedly arranged on the inner walls of the terminal pipes (4);

the cable main pipe (1) is internally and fixedly sleeved with a main wire core (7), three branch wire cores (8) are fixedly arranged in the main wire core (7), and shielding ground wires (9) are fixedly sleeved on the outer walls of the three branch wire cores (8).

2. A low voltage three-core terminal fitting according to claim 1, wherein: the number of the cable branch pipes (2) is three.

3. A low voltage three-core terminal fitting according to claim 1, wherein: and copper shielding layers (16) are fixedly arranged on the inner walls of the pipe bodies of the insulating pipes (3).

4. A low voltage three-core terminal fitting according to claim 1, wherein: umbrella skirts (12) are fixedly arranged on the outer walls of the tube bodies of the terminal tubes (4).

5. A low voltage three-core terminal fitting according to claim 1, wherein: the terminals (6) are fixedly sleeved on the terminal pipes (4) through the sealing pipe sleeves (5).

6. A low voltage three-core terminal fitting according to claim 1, wherein: the outer walls of the tube bodies of the plurality of terminal tubes (4) are fixedly sleeved with a first color ribbon (13), a second color ribbon (14) and a third color ribbon (15) respectively.

7. A low voltage three-core terminal fitting according to claim 1, wherein: the shielding ground wire (9) is fixedly sleeved on the three branch wire cores (8) through constant force springs (10).

8. A low voltage three-core terminal fitting according to claim 1, wherein: the shielding ground wire (9) is fixedly sleeved on the main wire core (7) through a PVC adhesive tape (11).