CN219246398U

CN219246398U - Medium-voltage silicone rubber polyurethane flexible cable

Info

Publication number: CN219246398U
Application number: CN202321223662.6U
Authority: CN
Inventors: 李高强; 金航; 蔡彦敏; 轩雪松; 连炎军
Original assignee: Henan Jinshui Cable Group Co ltd
Current assignee: Henan Jinshui Cable Group Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-06-23
Anticipated expiration: 2033-05-19

Abstract

The utility model provides a medium-voltage silicone rubber polyurethane flexible cable, which relates to the technical field of cables and comprises a power transmission conductor, wherein a shielding layer is arranged outside the power transmission conductor, a silicone rubber insulating layer is arranged outside the shielding layer, a polyurethane sheath is arranged outside the silicone rubber insulating layer, and an outer protective layer is arranged outside the polyurethane sheath. According to the utility model, the power transmission conductor manufactured by the concentric twisting process and the shielding layer manufactured by the braiding process have certain ductility, the silicon rubber insulating layer is provided with the compensation ripple on the surface, so that the ductility of the silicon rubber insulating layer is greatly improved, the polyurethane sheath manufactured by twisting and braiding by the extrusion molding process has good ductility, the elasticity of the cable is greatly improved under the mutual matching, the damage of mechanical bending to the cable is effectively reduced, and the breakage and damage are avoided.

Description

Medium-voltage silicone rubber polyurethane flexible cable

Technical Field

The utility model relates to the technical field of cables, in particular to a medium-voltage silicone rubber polyurethane flexible cable.

Background

The medium-voltage silicone rubber polyurethane flexible cable is a cable commonly used for industrial and mechanical equipment, has the advantages of high temperature resistance, oil corrosion resistance, interference resistance and the like, and is mainly internally provided with power transmission conductor cells for power transmission, provides insulation performance through a silicone rubber layer and provides wear resistance and corrosion resistance through polyurethane materials.

In the prior art, as in Chinese patent publication No. CN206040245U, a medium voltage silicone rubber polyurethane flexible cable is disclosed, which comprises a single-core copper conductor, wherein the single-core copper conductor is sequentially coated with a semiconductive nylon belt, a semiconductive layer, an ultra-clean silicone rubber insulating layer and a flame-retardant polyurethane elastomer protective layer from inside to outside. According to the utility model, the semiconductive layer and the ultra-clean silicon rubber insulating layer are additionally arranged outside the single-core copper conductor, and the flame-retardant polyurethane elastomer protective layer is additionally arranged outside the single-core copper conductor, so that the single-core copper conductor has the characteristics of uniform electric field, good flame retardance, wear resistance, damage resistance and the like, and has a long service life.

According to the novel medium-voltage silicone rubber polyurethane flexible cable, the flame resistance, wear resistance and damage resistance of the cable are improved by adding the semiconductive layer outside the single-core copper conductor and matching with the original structure, the service life is prolonged, and although the silicone rubber and polyurethane materials are excellent in performance, the silicone rubber and polyurethane protective layers have performance defects with poor elasticity, so that the cable is easy to break and damage due to the fact that the cable is easy to break in mechanical bending, and therefore, a novel medium-voltage silicone rubber polyurethane flexible cable is provided for the problems.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, the silicon rubber and the polyurethane protective layer have performance defects of poor elasticity, so that a cable is easy to break and damage when being bent mechanically, and provides a medium-voltage silicon rubber polyurethane flexible cable.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the medium-voltage silicone rubber polyurethane flexible cable comprises a power transmission conductor, wherein a shielding layer is arranged outside the power transmission conductor, a silicone rubber insulating layer is arranged outside the shielding layer, a polyurethane sheath is arranged outside the silicone rubber insulating layer, an outer protective layer is arranged outside the polyurethane sheath, compensating waves are arranged on the outer surface of the silicone rubber insulating layer, and the outer protective layer is made of butyl rubber materials.

Further, the power transmission conductor is formed by stranding a plurality of strands of copper cores by adopting a concentric stranding process, and the outer surface of the power transmission conductor is covered with a polyimide film.

Further, the shielding layer is manufactured by adopting a copper mesh weaving process.

Further, the polyurethane sheath is twisted and woven by adopting an extrusion molding process.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the power transmission conductor manufactured by the concentric twisting process and the shielding layer manufactured by the braiding process have certain ductility, the silicon rubber insulating layer is provided with the compensation ripple on the surface, so that the ductility of the silicon rubber insulating layer is greatly improved, the polyurethane sheath manufactured by twisting and braiding by the extrusion molding process has good ductility, the elasticity of the cable is greatly improved under the mutual matching, the damage of mechanical bending to the cable is effectively reduced, and the breakage and damage are avoided.

Drawings

Fig. 1 is a plan view of a medium voltage silicone rubber polyurethane flexible cable according to the present utility model;

fig. 2 is a perspective view of a medium voltage silicone rubber polyurethane flexible cable according to the present utility model;

fig. 3 is an exploded view of the medium voltage silicone rubber polyurethane flexible cable according to the present utility model.

Legend description: 1. a power transmission conductor; 2. a shielding layer; 3. a silicone rubber insulating layer; 4. compensating for the ripple; 5. a polyurethane sheath; 6. and an outer protective layer.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

The embodiment of the utility model provides a medium-voltage silicone rubber polyurethane flexible cable, which comprises a power transmission conductor 1, wherein a shielding layer 2 is arranged outside the power transmission conductor 1, a silicone rubber insulating layer 3 is arranged outside the shielding layer 2, a polyurethane sheath 5 is arranged outside the silicone rubber insulating layer 3, an outer protective layer 6 is arranged outside the polyurethane sheath 5, compensating waves 4 are arranged on the outer surface of the silicone rubber insulating layer 3, the outer protective layer 6 is made of a butyl rubber material, the power transmission conductor 1 is formed by twisting a plurality of strands of copper cores by adopting a concentric twisting process, a polyimide film is covered on the outer surface of the power transmission conductor 1, the shielding layer 2 is made by adopting a copper mesh braiding process, and the polyurethane sheath 5 is twisted and braided by adopting an extrusion molding process.

The effect that its whole embodiment reached is, this device has played the effect of transmission power through setting up transmission conductor 1 when using, shielding layer 2 has played the effect that prevents that the cable from receiving external electromagnetic interference, silicon rubber insulating layer 3 mainly is used for isolated transmission conductor 1 and external electrical environment, and have high temperature resistant and corrosion resistant performance, can deal with most adverse circumstances, polyurethane sheath 5 has good wear resistance and corrosion resistance, outer sheath 6 that butyl rubber material made has wear resistance, oil resistance, acid and alkali resistant etc. performance, the effectual inner structure of cable that has protected, the wholeness performance is better, long service life, and, transmission conductor 1 that makes through concentric transposition technology and shielding layer 2 that adopts the weaving technology to make it possess certain ductility, silicon rubber insulating layer 3 is through being provided with compensation ripple 4 on the surface, thereby make its ductility obtain great improvement, polyurethane sheath 5 that adopts extrusion molding technology distortion to weave and make has better ductility, under the mutual cooperation, elasticity of cable has been promoted by a wide margin, the damage that the cable has effectively reduced the mechanical bending caused the cable, take place fracture and damage.

Working principle: when the device is used, the power transmission conductor 1 is arranged to play a role in transmitting power, the shielding layer 2 plays a role in preventing the cable from being subjected to external electromagnetic interference, the silicon rubber insulating layer 3 is mainly used for isolating the power transmission conductor 1 and the external electric environment, has high temperature resistance and corrosion resistance, can cope with most severe environments, the polyurethane sheath 5 has good wear resistance and corrosion resistance, the outer sheath 6 made of butyl rubber material has wear resistance, oil resistance, acid and alkali resistance and other properties, the inner structure of the cable is effectively protected, the whole performance is good, the service life is long, the power transmission conductor 1 made through the concentric twisting process and the shielding layer 2 made through the braiding process enable the cable to have certain ductility, the silicon rubber insulating layer 3 is provided with compensating ripples 4 on the surface, so that the ductility of the cable is greatly improved, the polyurethane sheath 5 made through twisting braiding through the extrusion molding process has good ductility, the elasticity of the cable is greatly improved under the mutual cooperation, the damage to the cable caused by mechanical bending is effectively reduced, and the occurrence of fracture and damage is avoided.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The medium-voltage silicone rubber polyurethane flexible cable comprises a power transmission conductor (1), and is characterized in that: the outside of transmission of electricity conductor (1) is provided with shielding layer (2), the outside of shielding layer (2) is provided with silicone rubber insulating layer (3), the outside of silicone rubber insulating layer (3) is provided with polyurethane sheath (5), the outside of polyurethane sheath (5) is provided with outer sheath (6), the surface of silicone rubber insulating layer (3) is provided with compensation ripple (4), outer sheath (6) adopt butyl rubber material to make.

2. The medium voltage silicone rubber polyurethane flexible cable according to claim 1, wherein: the power transmission conductor (1) is formed by stranding a plurality of strands of copper cores by adopting a concentric stranding process, and the outer surface of the power transmission conductor (1) is covered with a polyimide film.

3. The medium voltage silicone rubber polyurethane flexible cable according to claim 1, wherein: the shielding layer (2) is manufactured by adopting a copper mesh weaving process.

4. The medium voltage silicone rubber polyurethane flexible cable according to claim 1, wherein: the polyurethane sheath (5) is twisted and woven by adopting an extrusion molding process.