CN202905277U - Stretch-resistant distortion-tolerant flexible cable for frequency converter - Google Patents

Abstract

The utility model provides a stretch-resistant distortion-tolerant flexible cable for a frequency converter. A line core of the cable is formed by twisting multiple strands of thin copper wires having a corrosion-resistant anti-oxidation coating in the same direction in a normal way, is easy to bend, and can help to reduce loss during an electric energy transmission process. A stretch-resistant layer arranged outside each line core improves tensile strength of the cable, and prevents phenomena of broken conductors and ruptured insulation caused by frequent movement, thereby strongly guaranteeing safety of power construction workers. An isolation layer of a silicon rubber insulation high-molecular polymer further improves flexibility of the cable, enhances the distortion-tolerant performance of the cable. A high-performance soft silica gel protective sheath layer enhances the torsion resistance of the cable, and at the same time, helps to prolong service life of the cable.

Description

Frequency converter stretch-proof distortion resistant flexible cable

Technical field:

The utility model belongs to the power cable field, particularly a kind of frequency converter stretch-proof distortion resistant flexible cable.

Background technology:

Along with power electronic technology, the application in Alternating Current Governor System of microelectric technique and modern control theory, performance as the frequency converter of AC variable-frequency speed regulation system core has also obtained tremendous development and raising, and more and more be applied to the numerous areas of industrial production and daily life, and supporting cable with it, also play very important effect, converter cable need to be in the mine, pipeline is carried, diversion works, use in the abominable situation of the environment such as colliery and in the power supply quality cable that drags of having relatively high expectations, this cable in long-term adverse circumstances use procedure because oxidation, the factors such as heating and hardening, become fragile, and two jacket structures of this cable not only can be crossed the right pitch in ambassador's cable interior lines because of pulling force in when wiring construction and change because of stretching, and can be excessive because of the cable bending, change the right sheaf space in cable interior lines, thereby affect every electric property of converter cable.Because the above-mentioned limitation of converter cable, under the emergency maintenance of cable fault, adverse circumstances, cause the stretch-proof warp resistance ability of converter cable greatly to descend in distributing system, the automated detection system, therefore so that converter cable has significant limitation in the use.

Summary of the invention:

In order to address the above problem, the utility model provides a kind of frequency converter stretch-proof distortion resistant flexible cable.

The utility model frequency converter stretch-proof distortion resistant flexible cable, it is characterized in that, this cable comprises cable core, metal material reinforcement screen, high performance silicon rubber insulated with material layer, silicon rubber insulation high molecular polymer separator and high-performance soft silica gel restrictive coating from inside to outside successively; Described cable core is by some eradication edge cores and be coated on successively insulated wire cores outer tensile layer, composition metal screen and nonmetal insulating barrier and form.

Described insulated wire cores is the main transmission lines of electric current, and described insulated wire cores is the stranded in the same way flexible conductor that forms of soft thin copper wire multiply with corrosion-resistant anti-oxidant coating.

Described tensile layer is netted metal knitted structure.

A kind of frequency converter stretch-proof distortion resistant flexible cable that the utility model provides, the core of this cable is by regular in the same way stranded the forming of the thin copper wire multiply with corrosion-resistant anti-oxidant coating, easily crooked, and in the process that transmits electric energy, can reduce loss, every outer tensile layer that arranges of core has promoted the tensile strength of cable, the conductor of having avoided frequent movement to produce cut-offs, the insulation fracture phenomena, sound assurance power construction personnel's safety, silicon rubber insulation high molecular polymer separator has further improved the cable flexibility, so that the warp resistance enhancing of cable, high-performance soft silica gel restrictive coating can strengthen the anti-torsion performance of cable, has also prolonged the useful life of cable simultaneously.

Description of drawings:

Fig. 1 is a kind of frequency converter that provides of the utility model with the structural representation of stretch-proof distortion resistant flexible cable.

Among the figure: cable core 1, metal material are strengthened screen 2, high performance silicon rubber insulated with material layer 3, silicon rubber insulation high molecular polymer separator 4, high-performance soft silica gel restrictive coating 5, insulated wire cores 6, tensile layer 7, composition metal screen 8, nonmetal insulating barrier 9.

Embodiment:

The utility model frequency converter stretch-proof distortion resistant flexible cable, this cable comprise cable core 1, metal material reinforcement screen 2, high performance silicon rubber insulated with material layer 3, silicon rubber insulation high molecular polymer separator 4 and high-performance soft silica gel restrictive coating 5 from inside to outside successively; Described cable core 1 is by some eradication edge cores 6 and be coated on successively insulated wire cores outer tensile layer 7, composition metal screen 8 and nonmetal insulating barrier 9 and form, described insulated wire cores 6 is the main transmission lines of electric current, described insulated wire cores 6 is for having the stranded in the same way flexible conductor that forms of soft thin copper wire multiply of corrosion-resistant anti-oxidant coating, and described tensile layer 7 is netted wire sheathing.

Claims (3)

1. the utility model frequency converter stretch-proof distortion resistant flexible cable, it is characterized in that, this cable comprises cable core (1), metal material reinforcement screen (2), high performance silicon rubber insulated with material layer (3), silicon rubber insulation high molecular polymer separator (4) and high-performance soft silica gel restrictive coating (5) from inside to outside successively;

Described cable core (1) is by some eradication edge cores (6) and be coated on successively insulated wire cores outer tensile layer (7), composition metal screen (8) and nonmetal insulating barrier (9) and form.

2. according to claims 1 described frequency converter stretch-proof distortion resistant flexible cable, it is characterized in that: described insulated wire cores (6) is the main transmission lines of electric current, and described insulated wire cores (6) is for having the stranded in the same way flexible conductor that forms of soft thin copper wire multiply of corrosion-resistant anti-oxidant coating.

3. according to claims 1 described frequency converter stretch-proof distortion resistant flexible cable, it is characterized in that: described tensile layer (7) is netted metal knitted structure.

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