CN208061718U - A kind of cross-linked polyethylene insulated cable - Google Patents

Abstract

A kind of cross-linked polyethylene insulated cable, including insulation crust, insulation crust is tubular structure, the inside of insulation crust is installed by crosslinked polyethylene pipe, the inside installation cable core of crosslinked polyethylene pipe and several crosslinked polyethylene triangle convexs, the length of crosslinked polyethylene triangle convex is identical as the length of crosslinked polyethylene pipe, the crosslinked polyethylene triangle convex of the utility model has gap between triangular prism shaped and adjacent crosslinked polyethylene triangle convex, each triangle convex is set to only have a rib to be contacted with cable core, to which cable core can be made to be maintained at the middle part of crosslinked polyethylene pipe, it can make cable core that there is enough heat dissipation areas again, heat is avoided to gather, reduce the generation of cable burnout failure.

Description

A kind of cross-linked polyethylene insulated cable

Technical field

The utility model is related to a kind of insulated cable, more precisely a kind of cross-linked polyethylene insulated cable.

Background technology

Cross-linked polyethylene insulated cable is to make cable insulation polyethylene molecule by linear using chemically or physically Molecular structure is changed into main body network molecular structure, i.e., thermoplastic polyethylene is changed into heat cured crosslinked polyethylene.It is existing A kind of cross-linked polyethylene insulated cable cable core often by tight, cannot be quick when overheat condition occurs in cable core Heat dissipation, heat can be such that cable burns in cable accumulated inside, and a kind of existing cross-linked polyethylene insulated cable is due to being crosslinked poly- second The phenomenon that alkene intensity is larger, and crosslinked polyethylene often will appear fracture when cable is bent.

Invention content

The purpose of this utility model is to provide a kind of cross-linked polyethylene insulated cable, can solve the problem above-mentioned.

The utility model to achieve the above object, is achieved through the following technical solutions：

A kind of cross-linked polyethylene insulated cable, including insulation crust, insulation crust are tubular structure, the inside of insulation crust Crosslinked polyethylene pipe is installed, the inside installation cable core of crosslinked polyethylene pipe and several crosslinked polyethylene triangle convexs, crosslinking are poly- The length of ethylene triangle convex is identical as the length of crosslinked polyethylene pipe, and crosslinked polyethylene triangle convex is in triangular prism shaped, crosslinking One side of polyethylene triangle convex is connect with crosslinked polyethylene pipe, has gap between adjacent crosslinked polyethylene triangle convex, Several crosslinked polyethylene triangle convexs are located at the side week of cable core, and a side of crosslinked polyethylene triangle convex is stupefied to match with cable core It closes.

In order to further realize the purpose of this utility model, following technical scheme can also be used:The crosslinked polyethylene The cross section of triangle convex is isosceles triangle.Metal layer is set between the insulation crust and crosslinked polyethylene pipe.

The utility model has the advantage of：The crosslinked polyethylene triangle convex of the utility model is in triangular prism shaped and adjacent There is gap between crosslinked polyethylene triangle convex, each triangle convex is made to only have a rib to be contacted with cable core, to make Cable core is maintained at the middle part of crosslinked polyethylene pipe, and cable core can be made to have enough heat dissipation areas, avoids heat from gathering, subtracts The generation of small cable burnout failure.There is gap that crosslinking can be made poly- between the adjacent crosslinked polyethylene triangle convex of the utility model Ethylene triangle convex has enough activity spaces, and when cable is bent, crosslinked polyethylene triangle convex can be by slight Variation outside deformation adaptation, is broken so as to avoid crosslinked polyethylene material, improves a kind of cross-linked polyethylene insulated cable Bend resistance ability.The utility model also has the advantages of compact structure, low manufacturing cost and easy to use.

Description of the drawings

Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：

Fig. 1 is the structural schematic diagram of the utility model；Fig. 2 is the A of Fig. 1 to enlarged structure schematic diagram.

Specific implementation mode

The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

A kind of cross-linked polyethylene insulated cable, as depicted in figs. 1 and 2, including insulation crust 1, insulation crust 1 are tubulose knot The inside of structure, insulation crust 1 is installed by crosslinked polyethylene pipe 2, the inside installation cable core 4 of crosslinked polyethylene pipe 2 and several crosslinkings The length of polyethylene triangle convex 3, crosslinked polyethylene triangle convex 3 is identical as the length of crosslinked polyethylene pipe 2, crosslinked polyethylene Triangle convex 3 is in triangular prism shaped, and a side of crosslinked polyethylene triangle convex 3 is connect with crosslinked polyethylene pipe 2, adjacent crosslinking There are gap, several crosslinked polyethylene triangle convexs 3 to be located at the side week of cable core 4, crosslinked polyethylene between polyethylene triangle convex 3 One side of triangle convex 3 is stupefied to be coordinated with cable core 4.

The crosslinked polyethylene triangle convex 3 of the utility model is in triangular prism shaped and adjacent crosslinked polyethylene triangle convex 3 Between have gap, make each triangle convex 3 only have a rib to be contacted with cable core 4, so that cable core 4 can be made to be maintained at crosslinking The middle part of polyethylene pipe 2, and can make cable core 4 that there is enough heat dissipation areas, it avoids heat from gathering, reduces cable burnout failure Generation.There is gap that can make crosslinked polyethylene triangle convex 3 between the adjacent crosslinked polyethylene triangle convex 3 of the utility model With enough activity spaces, when cable is bent, crosslinked polyethylene triangle convex 3 can be adapted to external by slight deformation Variation, so as to avoid crosslinked polyethylene material be broken, improve a kind of bend resistance ability of cross-linked polyethylene insulated cable.

The cross section of the crosslinked polyethylene triangle convex 3 is isosceles triangle.The polyethylene triangle of the utility model is convex The cross section of block 3, which is isosceles triangle, can be such that polyethylene triangle convex 3 is more uniformly stressed.

Metal layer 5 is set between the insulation crust 1 and crosslinked polyethylene pipe 2.The metal layer 5 of the utility model can shield Cover extraneous electromagnetic interference influences caused by polyethylene insulated cable.

Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (3)

1. a kind of cross-linked polyethylene insulated cable, it is characterised in that：Including insulation crust（1）, insulation crust（1）For tubulose knot Structure, insulation crust（1）Inside install crosslinked polyethylene pipe（2）, crosslinked polyethylene pipe（2）Inside install cable core（4）With Several crosslinked polyethylene triangle convexs（3）, crosslinked polyethylene triangle convex（3）Length and crosslinked polyethylene pipe（2）Length It is identical, crosslinked polyethylene triangle convex（3）In triangular prism shaped, crosslinked polyethylene triangle convex（3）A side and crosslinking it is poly- Ethylene tube（2）Connection, adjacent crosslinked polyethylene triangle convex（3）Between have gap, several crosslinked polyethylene triangle convexs（3）Position In cable core（4）Side week, crosslinked polyethylene triangle convex（3）A side is stupefied and cable core（4）Cooperation.

2. a kind of cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：The crosslinked polyethylene triangle Convex block（3）Cross section be isosceles triangle.

3. a kind of cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：The insulation crust（1）With Crosslinked polyethylene pipe（2）Between metal layer is set（5）.