CN217361210U

CN217361210U - High-voltage wire capable of preventing epoxy coating deformation

Info

Publication number: CN217361210U
Application number: CN202122923399.9U
Authority: CN
Inventors: 梁志鑫; 陈丹; 鲍晨晨; 郭志诚; 陈嘉伟
Original assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-09-02
Anticipated expiration: 2031-11-25

Abstract

The application discloses an epoxy coating deformation prevention high-voltage wire, and relates to the technical field of cables; comprises a core wire and an outer cladding layer coated on the outer layer of the core wire; the core wires comprise two groups, and a connecting body is arranged between the two groups of core wires; adopt the technical scheme that this application provided to have solved the influence that receives gravity when current epoxy solidifies and lead to epoxy to seriously warp and be the water droplet form, and the leakproofness is poor and not wet-proof moisture resistance, occupy connection space's technical problem.

Description

High-voltage wire capable of preventing epoxy coating deformation

Technical Field

The application relates to the technical field of cables, in particular to a high-voltage cable capable of preventing epoxy coating deformation.

Background

The joints at the two ends of the cable run are called termination joints and the joint in the middle is called an intermediate joint. The main function of the joint is to keep the cable sealed, to keep the line smooth, and to ensure the insulation grade at the cable joint, to make it run safely and reliably.

Because the epoxy resin has longer curing time and is in a fluid state before curing, the epoxy resin is seriously deformed into a drop shape under the influence of gravity during curing, has poor sealing property, is not moisture-proof and moisture-proof, and occupies a connecting space.

SUMMERY OF THE UTILITY MODEL

This application aim at provides a prevent epoxy coating deformation line for high pressure, adopts the technical scheme that this application provided to solve the influence that receives gravity when current epoxy solidifies and lead to epoxy to seriously warp and be the water droplet form, and the leakproofness is poor and not moisture-proof moisture resistant, occupies connection space's technical problem.

In order to solve the technical problem, the application provides a high-voltage wire capable of preventing epoxy coating deformation, which comprises a core wire and an outer cladding layer coated on the outer layer of the core wire;

the core wires comprise two groups, and a connecting body is arranged between the two groups of core wires;

in the implementation process, the conjoined is added between the core wires, so that the stress area between the outer cladding and the surface of the wire rod is increased, the outer cladding can be tightly attached to the wire rod and does not flow downwards due to gravity, and the flat sealing position is realized without occupying a connecting space; meanwhile, the stability of the whole structure is improved by adding the connecting body between the core wires, so that the parallel connection and the cross-over connection are more convenient in the subsequent use.

Preferably, the core wire includes a conductor layer and an insulating layer coated outside the conductor; the conductor layer is a tin-plated copper conductor;

preferably, the conductor is formed by twisting 7 tin-plated copper conductors with the thickness of 0.200 mm;

in the implementation process, the conductor adopts a 7/0.200mm normal stranded tin-plated copper conductor, the single wire breaking elongation of the conductor is more than or equal to 10%, each insulated conductor is combined in opposite twisting directions, the conductor is ensured to be round, and the integral stability of the core wire is improved.

Preferably, the insulating layer is made of cross-linked polyolefin and is formed with a matte surface;

preferably, the outer cladding is epoxy resin;

in the implementation process, the insulating layer in the application adopts matte crosslinked polyolefin, so that the wire is ensured to reach a certain temperature resistance level (150 ℃) and insulating property (3 KV); meanwhile, the contact area between the wire and the epoxy resin can be increased by forming the fog surface on the sizing material, so that the flowability of epoxy resin fluid can be weakened, and the problem of epoxy resin deformation can be effectively solved.

Compared with the prior art, the beneficial effect of this application lies in: this application starts from the chooseing for use of conductor, insulating material chooses for use and heart yearn structure adjustment three direction, receives the influence of gravity when effectively having solved current epoxy solidification to lead to epoxy to seriously warp and be the water droplet form, and the leakproofness is poor and not moisture-proof and moisture-resistant, occupies connection space's technical problem.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of the overall structure of one embodiment of the present application;

fig. 2 is a schematic cross-sectional view of a core wire according to an embodiment of the present application.

Wherein: 10. a core wire; 11. a conductor layer; 12. an insulating layer; 20. an epoxy resin layer; 30. connected with each other.

Detailed Description

Embodiments of the present application are illustrated in the following description and are not intended to be limited to the details shown in the following description. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings for the sake of simplicity.

It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present application are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in this application are used for descriptive purposes only, are not specifically intended to be in an orderly or sequential sense, and are not intended to limit the present application, but are merely used for distinguishing components or operations described in the same technical terms, and are not intended to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

For a further understanding of the contents, features and functions of the present invention, reference will now be made to the following examples, which are illustrated in the accompanying drawings and described in the following detailed description:

examples

The joints at the two ends of the cable line are called terminal heads, and the joint in the middle is called a middle joint. The main function of the joint is to keep the cable sealed, to keep the line smooth, and to ensure the insulation grade at the cable joint, to make it run safely and reliably.

Because the epoxy resin has longer curing time and is in a fluid state before curing, the epoxy resin is seriously deformed into a drop shape under the influence of gravity when the epoxy resin is cured, has poor sealing property, is not moisture-resistant and moisture-proof, and occupies a connecting space;

in order to solve the above technical problem, the present embodiment provides the following technical solutions:

specifically, referring to fig. 1-2, the present embodiment provides an epoxy-coating deformation-preventing high-voltage wire, which includes a core wire 10 and an outer cladding layer covering the core wire 10;

specifically, the core wires 10 comprise two groups, and a connecting body 30 is arranged between the two groups of core wires 10;

in the scheme, the connecting body 30 is additionally arranged between the core wires 10, so that the stress area between the outer cladding and the surface of the wire is increased, the outer cladding can be tightly attached to the wire and does not flow downwards due to gravity, and the sealing part is flat and does not occupy the connecting space; meanwhile, the connecting body 30 added between the core wires 10 also improves the stability of the whole structure, so that the parallel connection and the cross-over connection are more convenient in the subsequent use.

Wherein in some embodiments, the force-bearing area of the cable is increased from 1.37mm to 1.41 mm.

Specifically, the core wire 10 includes a conductor layer 11 and an insulating layer 12 coated outside the conductor; the conductor layer 11 is a tin-plated copper conductor;

furthermore, the conductor is formed by twisting 7 tin-plated copper conductors with the thickness of 0.200 mm;

in the scheme, the conductors are 7/0.200mm normal stranded tinned copper conductors, the breaking elongation of conductor monofilaments is larger than or equal to 10%, each insulated conductor is combined in the opposite twisting direction, the rounding of the conductors is guaranteed, and the overall stability of the core wire 10 is improved.

Specifically, the insulating layer 12 is made of cross-linked polyolefin and is formed with a matte surface;

further, the outer cladding is made of epoxy resin;

in the scheme, the insulating layer 12 in the application adopts matte crosslinked polyolefin, so that the wire is ensured to reach a certain temperature resistance level (150 ℃) and insulating property (3 KV); meanwhile, the contact area between the wire and the epoxy resin can be increased by forming the fog surface on the sizing material, so that the flowability of epoxy resin fluid can be weakened, and the problem of epoxy resin deformation can be effectively solved.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present application are intended to be included within the scope of the present application.

Claims

1. The utility model provides a prevent epoxy coating deformation line for high pressure which characterized in that: comprises a core wire and an outer cladding layer coated on the outer layer of the core wire;

the core wire comprises a conductor layer and an insulating layer coated outside the conductor; the conductor layer is a tin-plated copper conductor; the insulating layer is made of cross-linked polyolefin and is formed with a matte surface.

2. The epoxy coating deformation prevention high voltage wire as claimed in claim 1, wherein: the conductor is formed by twisting 7 tin-plated copper conductors with the thickness of 0.200 mm.

3. The epoxy coating deformation preventing high voltage wire according to any one of claims 1 or 2, characterized in that: the outer cladding is made of epoxy resin.