CN215183176U

CN215183176U - PVC insulation and sheath control cable

Info

Publication number: CN215183176U
Application number: CN202121253624.6U
Authority: CN
Inventors: 应旭彬; 应日强; 林鹏
Original assignee: Zhejiang Zhongwei Cable Factory
Current assignee: Zhejiang Zhongwei Cable Factory
Priority date: 2021-06-05
Filing date: 2021-06-05
Publication date: 2021-12-14
Anticipated expiration: 2031-06-05

Abstract

The application relates to an insulating and sheath control cable of PVC, it includes cable core, insulating layer, shielding layer, PTFE that from interior to exterior set gradually around covering, armor and PVC sheath, the armor is the galvanized steel strip, shielding layer and PTFE are provided with three at least strengthening ribs around being provided with along circumference between the covering. This application has the effect that compressive property is high.

Description

PVC insulation and sheath control cable

Technical Field

The application relates to the technical field of cables, in particular to a PVC (polyvinyl chloride) insulation and sheath control cable.

Background

The control cable is mainly used for transmitting control signals, measuring signals and the like, and along with the continuous development of industries such as the power industry, data communication, rail transit and the like, the demand of the control cable is larger and larger.

In the related art, chinese patent No. CN200969245Y discloses a control cable, which includes a conductor, a filler and a sheath, wherein a PFA insulating layer is extruded outside the conductor to form a cable core, a wrapping tape is wrapped outside the cable core, and a PFA sheath is extruded outside the wrapping tape.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the control cable has poor compression resistance, and the cable is easy to cause conductor deformation when being extruded, so that the transmission quality of current signals is influenced and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the compressive property of cable, this application provides an insulating and sheath control cable of PVC.

The application provides a PVC insulation and sheath control cable adopts following technical scheme:

the utility model provides an insulating and sheath control cable of PVC, includes cable core, insulating layer, shielding layer, PTFE that from interior to exterior set gradually around covering, armor and PVC sheath, the armor is the galvanized steel strip, shielding layer and PTFE are provided with three at least strengthening ribs around being provided with along circumference between the covering.

By adopting the technical scheme, the insulating layer is arranged on the outer side of the cable core, so that the cable core is isolated to prevent people from being injured by electric shock; the shielding layer can effectively shield external electromagnetic waves from interfering current signals transmitted in the cable core, and stable transmission of the signals is facilitated.

The PVC sheath is arranged on the outermost layer of the cable and has the advantages of good flame retardance, high chemical resistance, and good mechanical strength and electrical insulation. The armor layer is made of galvanized steel strips, and the armor layer is not easy to deform when being extruded, so that the cable core positioned on the inner side of the armor layer is not easy to damage due to compression, and stable transmission of current signals is guaranteed. The surface of the steel strip is galvanized, so that the steel strip is not easy to rust, and the service life of the steel strip is prolonged. PTFE is made around the covering and is adopted the PTFE material, has good chemical stability, corrosion resistance, leakproofness, electrical insulation and good ageing resistance, and it sets up between shielding layer and armor, has not only improved comprehensive properties such as the insulation of cable, corrosion resistance, still plays the effect of protection shielding layer and each layer of inboard thereof. The strengthening rib is filled between shielding layer and PTFE around the covering, has further strengthened the structural strength of cable self, and the comprehensive properties of cable is high, long service life.

Optionally, the reinforcing rib is a galvanized steel wire.

By adopting the technical scheme, the galvanized steel wire is a carbon steel wire with the surface galvanized by a hot-dip plating or electroplating method, and has the advantages of smooth surface, good compression resistance and corrosion resistance.

Optionally, the outer side of the PVC sheath is provided with a titanium dioxide coating.

By adopting the technical scheme, the PVC sheath is made of the polyvinyl chloride material, the polyvinyl chloride has poor stability to light and heat, and the polyvinyl chloride is oxidized and decomposed by ultraviolet rays and oxygen in sunlight, so that the flexibility of the polyvinyl chloride is reduced and even the polyvinyl chloride is crisp. The titanium dioxide coating has the advantages of good thermal stability and strong ultraviolet ray blocking capability, and is arranged on the outer side of the PVC sheath, so that the PVC sheath can be effectively protected, and the PVC sheath is not embrittled and damaged due to sun solarization.

Optionally, a waterproof layer is arranged between the armor layer and the PVC sheath.

Through adopting above-mentioned technical scheme, after titanium dioxide coating and PVC sheath are damaged, the waterproof layer can separate and keep off external moisture infiltration, has improved the waterproof nature of cable.

Optionally, the waterproof layer is a PE layer.

By adopting the technical scheme, the PE is thermoplastic resin prepared by polymerizing ethylene, has the characteristics of small water absorption and excellent electrical insulation, and the waterproof layer is made of the material, so that the waterproof cable has the advantage of good waterproof property and can further improve the insulation property of the cable.

Optionally, a PVDF corrosion-resistant layer is arranged between the PTFE lapping layer and the armor layer.

Through adopting above-mentioned technical scheme, PVDF corrosion resistant coating adopts the PVDF material to make, has that mechanical strength is high, the wearability is good, ultraviolet resistance and nuclear ray can the reinforce and the advantage that corrosion resistance is good, sets up it between PTFE is around covering and armor, can effectively strengthen the corrosion resistance and the wearability of cable for PTFE is difficult for receiving wearing and tearing around covering surface.

Optionally, the cable core is a tinned copper wire.

By adopting the technical scheme, the tinned copper wire is soft in material and good in conductivity, the tinned copper wire is stronger in corrosion resistance and oxidation resistance compared with a bare copper wire, and the cable core is made of the material and is long in service life.

Optionally, the insulating layer is an environment-friendly PVC layer.

Through adopting above-mentioned technical scheme, environmental protection PVC still has the characteristics of low cigarette hypohaline on insulating good basis, and the harmful gas that releases when the cable burning is little, can effectively reduce the secondary disaster that brings after catching fire, and security and feature of environmental protection are high.

Optionally, the shielding layer is a copper mesh braid.

By adopting the technical scheme, the shielding layer is woven by the copper wires to form a net, so that the interference of external electromagnetism on transmission current signals can be effectively shielded, and the orderly operation of the circuit can be guaranteed. In addition, micropores are formed in the reticular shielding layer, so that heat generated after the cable core is electrified can be dissipated outwards.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the armor layer and the reinforcing ribs are arranged in the cable, so that the compressive strength of the cable can be effectively improved, the cable core is not easy to deform after the cable is extruded, and stable transmission of current signals is facilitated;

2, the outer side of the PVC sheath is provided with the titanium dioxide coating, so that the PVC sheath is not easy to embrittle and discolor after being subjected to sun exposure for a long time, and the service life of the cable is prolonged;

and 3, the waterproof layer made of the PE material can enhance the waterproofness and insulativity of the cable, and the cable is high in comprehensive performance and long in service life.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present application.

Description of reference numerals:

1. a cable core; 2. an insulating layer; 3. a shielding layer; 4. a PTFE lapping layer; 5. a PVDF corrosion-resistant layer; 6. an armor layer; 7. a waterproof layer; 8. a PVC sheath; 9. a titanium dioxide coating; 10. and (5) reinforcing ribs.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses PVC insulation and sheath control cable. Referring to fig. 1, the PVC insulation and sheath control cable includes cable core 1, insulating layer 2, shielding layer 3, PTFE that set gradually from inside to outside around covering 4, PVDF corrosion-resistant layer 5, armor 6, waterproof layer 7, PVC sheath 8 and titanium dioxide coating 9, wherein shielding layer 3 and PTFE are provided with many strengthening ribs 10 around filling along circumference between the covering 4, and the quantity of strengthening rib 10 is four in this embodiment, plays the effect of reinforcing cable compressive strength.

Referring to fig. 1, the cable core 1 is made of tinned copper wires, copper has excellent conductivity, tinning on the surface of the copper can effectively enhance the corrosion resistance and oxidation resistance of the cable core 1, and the service life of the cable core 1 is long.

Referring to fig. 1, the insulating layer 2 is made of environment-friendly PVC material, which not only can isolate the cable from electric shock and injury, has good insulation property, but also has the characteristics of low smoke and low halogen, and releases less harmful gas during combustion, and has high safety and environmental protection.

Referring to fig. 1, the shielding layer 3 is formed by weaving copper wires into a net, so that the influence of external electromagnetic waves on the transmission of current signals can be shielded, heat generated after the cable core 1 is electrified can be dissipated outwards, and the heat dissipation performance of the cable is improved.

Referring to fig. 1, the reinforcing rib 10 is a galvanized steel wire, that is, the surface of the carbon steel wire is galvanized by hot dipping, and the surface is smooth and clean, has high corrosion resistance and toughness, is not easy to deform when being extruded, and enhances the structural strength of the cable.

Referring to fig. 1, PTFE is made around covering 4 and is adopted the PTFE material, has good chemical stability, corrosion resistance, leakproofness, electrical insulation and ageing resistance, and it sets up in the outside of shielding layer 3, has not only strengthened the insulating nature and the corrosion resistance of cable, still plays the effect of protection shielding layer 3, insulating layer 2 and cable core 1.

Referring to fig. 1, the PVDF corrosion-resistant layer 5 is formed by coating PVDF resin, and has the characteristics of good wear resistance and corrosion resistance, and high ultraviolet resistance and irradiation resistance, and further enhances the comprehensive performance of the cable.

Referring to fig. 1, the armor layer 6 is a galvanized copper strip and plays a role in supporting and shaping the cable, so that the cable is not easy to deform when being extruded, and stable transmission of current signals is guaranteed.

Referring to fig. 1, the waterproof layer 7 is made of PE material, and plays a role in blocking outside moisture from entering the inside of the waterproof layer, so that the cable is not easy to cause a safety accident due to short circuit, and the potential safety hazard is small.

Referring to fig. 1, the PVC sheath 8 is made of soft PVC material, has the advantages of softness, being capable of bending and folding at will, and the like, and not only plays a role in protecting the waterproof layer 7, but also can further enhance the insulating property of the cable.

Referring to fig. 1, the titanium dioxide coating 9 is titanium dioxide, and is coated on the outer side of the PVC jacket 8 to protect the PVC jacket 8, so that the PVC jacket 8 is not easily embrittled and damaged due to long-term solarization.

The implementation principle of the PVC insulation and sheath control cable in the embodiment of the application is as follows: the cable core 1 is used for transmitting current signals, and the insulating layer 2 is arranged on the outer side of the cable core 1 and plays a role in insulation protection; the shielding layer 3 can effectively shield the influence of external electromagnetic waves on signal transmission; the reinforcing ribs 10 and the armor layers 6 enhance the compressive strength of the cable, so that the cable is not easy to deform under pressure to influence the conductive effect. PTFE can strengthen the corrosion resistance and the chemical stability of cable around covering 4, and PVDF corrosion-resistant layer 5 can also improve the ultraviolet resistance ability of cable except can strengthening the corrosion resistance of cable, and waterproof layer 7 plays the effect that separates the entering cable core 1 of retaining moisture. The PVC sheath 8 sets up at the outer of cable core 1, and the guard effect is good, and titanium dioxide coating 9 plays the effect of protection PVC sheath 8. The cable has high comprehensive performance and long service life.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a PVC is insulating and sheath control cable which characterized in that: the cable comprises a cable core (1), an insulating layer (2), a shielding layer (3), PTFE (polytetrafluoroethylene) and a wrapping layer (4), an armor layer (6) and a PVC (polyvinyl chloride) sheath (8), wherein the cable core, the insulating layer (2), the shielding layer (3), the PTFE and the wrapping layer (4) are sequentially arranged from inside to outside, the armor layer (6) is a galvanized steel strip, and at least three reinforcing ribs (10) are arranged between the shielding layer (3) and the PTFE and along the circumferential direction.

2. The PVC insulation and sheath control cable of claim 1, wherein: the reinforcing ribs (10) are galvanized steel wires.

3. The PVC insulation and sheath control cable of claim 1, wherein: and a titanium dioxide coating (9) is arranged on the outer side of the PVC sheath (8).

4. The PVC insulation and sheath control cable of claim 3, wherein: and a waterproof layer (7) is arranged between the armor layer (6) and the PVC sheath (8).

5. The PVC insulation and sheath control cable of claim 4, wherein: the waterproof layer (7) is a PE layer.

6. The PVC insulation and sheath control cable of claim 3, wherein: and a PVDF corrosion-resistant layer (5) is arranged between the PTFE wrapping layer (4) and the armor layer (6).

7. The PVC insulation and sheath control cable of claim 1, wherein: the cable core (1) is a tinned copper wire.

8. The PVC insulation and sheath control cable of claim 1, wherein: the insulating layer (2) is an environment-friendly PVC layer.

9. The PVC insulation and sheath control cable of claim 1, wherein: the shielding layer (3) is a copper mesh braided layer.