CN206619429U - Oil-resistant polyvinyl chloride gum cover shielded cable - Google Patents

Abstract

The utility model discloses an oil-resistant polyvinyl chloride rubber-sheathed shielding cable, which comprises a wire core formed by twisting multiple strands of wires, a polyvinyl chloride middle layer and a metal coating resin coated on the wire core in sequence. Tape layer, tinned copper braided mesh and oil-resistant polyvinyl chloride outer covering layer, the metal-coated resin tape layer is formed by winding the metal-coated resin tape on the outer surface of the wire core along the circumferential direction of the wire core; the utility model has an ingenious structural design , reasonable, equipped with oil-resistant polyvinyl chloride outer layer, which can effectively protect and isolate the wire core, greatly prolonging the service life of the wire, has good oil resistance, water resistance, corrosion resistance, high and low temperature resistance, high mechanical strength, chemical stability and It has excellent dielectric properties and good flexibility; it is equipped with a metal-coated resin tape layer, which has a good shielding effect; it is equipped with a tinned copper braided mesh, which has a good shielding effect through the transfer impedance test and further improves the anti-interference ability. Good performance and wide application range.

Description

Oil-resistant PVC sheathed shielded cable

technical field

The utility model relates to the technical field of wires and cables, in particular to an oil-resistant polyvinyl chloride rubber sheathed shielding cable.

Background technique

Although the wire and cable industry is only a supporting industry, it accounts for 1/4 of the output value of China's electrical industry. It has a wide variety of products and a wide range of applications, involving industries such as electric power, construction, communications, and manufacturing, and is closely related to various sectors of the national economy. Wires and cables are also known as the "arteries" and "nerves" of the national economy. They are indispensable basic equipment for transmitting electric energy, transmitting information, manufacturing various motors, instruments, and meters, and realizing electromagnetic energy conversion. Basic products necessary in a modernized society.

The current power cord generally only has a conductor and an insulating layer, which is formed by melting the insulating layer and then combining with the conductor, and then cooling; the wire with this structure will generate electromagnetic radiation when it is energized, and it will also be radiated by itself. The electromagnetic waves of other electronic components are interfered, so that the normal operation of electrical appliances is often affected by electromagnetic interference during use. That is, its anti-interference is poor and it is easily affected by the outside world. At the same time, when used in places with relatively harsh environments, it is easy to be corroded by oil and chemical reagents, resulting in a limited service life of the cable, and the replacement and maintenance of the power cord increases the corresponding costs, causing great inconvenience to life and production.

Utility model content

In view of the above shortcomings, the purpose of this utility model is to provide an oil-resistant polyvinyl chloride rubber-sheathed shielded cable.

In order to achieve the above purpose, the technical solution provided by the utility model is: an oil-resistant polyvinyl chloride rubber-sheathed shielded cable, which includes a core formed by twisting multiple strands of wires and polystyrene coated on the core in turn. Vinyl chloride middle layer, metal-coated resin tape layer, tinned copper braided mesh and oil-resistant polyvinyl chloride outer layer, metal-coated resin tape layer is wound outside the wire core along the circumferential direction of the wire core by the metal-coated resin tape The wire is formed on the surface; the wire includes a core made of twisted copper conductors and a polyvinyl chloride inner layer covering the core, and the thickness of the polyvinyl chloride inner layer is 2.1-2.3mm , the thickness of the polyvinyl chloride middle layer is 17-19mm, and the thickness of the oil-resistant polyvinyl chloride outer layer is 21-24mm.

As an improvement of the utility model, the mesh number of the tinned copper braided mesh is 12 mesh.

As an improvement of the utility model, the tinned copper braided mesh and the outer layer of oil-resistant polyvinyl chloride are provided with grounding steel wires.

The beneficial effects of the utility model are as follows: the utility model has an ingenious and reasonable structural design, and is equipped with an oil-resistant polyvinyl chloride outer layer, which can effectively protect and isolate the wire core, greatly prolong the service life of the wire, and has better oil resistance, water resistance, and corrosion resistance. , high and low temperature resistance, high mechanical strength, excellent chemical stability and dielectric properties, and good flexibility; with metal-coated resin tape layer, good shielding effect; with tinned copper braided mesh, passed the transfer impedance test , has a good shielding effect, further improves the anti-interference ability, has good comprehensive performance, and has a wide range of applications.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

Fig. 1 is a structural representation of the utility model.

detailed description

Referring to Fig. 1, an oil-resistant polyvinyl chloride sheathed shielded cable provided in this embodiment includes a wire core 1 formed by twisting multiple wires and a polyvinyl chloride layer coated on the wire core 1 in turn. Layer 2, metal-coated resin belt layer 3, tinned copper braided mesh 4 and oil-resistant PVC outer coating layer 5, with oil-resistant PVC outer coating layer 5, which can effectively protect and isolate the wire core 1, and greatly extend the wire It has good oil resistance, water resistance, corrosion resistance, high and low temperature resistance, high mechanical strength, excellent chemical stability and dielectric properties, and good flexibility. It is equipped with a metal-coated resin tape layer 3, which has good shielding effect; it is equipped with a tinned copper braided mesh 4, which has a good shielding effect through the transfer impedance test, further improves the anti-interference ability, and has good comprehensive performance.

The metal-clad resin tape layer 3 is formed by winding the metal-clad resin tape on the outer surface of the wire core 1 along the circumferential direction of the wire core 1; the metal-clad resin tape includes a resin layer and is laminated with the resin layer. aluminum foil layer. The wire includes a core body twisted by a plurality of copper conductors and a polyvinyl chloride inner coating covering the core body, the thickness of the polyvinyl chloride inner coating layer is 2.1-2.3mm, and the polyvinyl chloride inner coating layer is The vinyl chloride middle layer 2 has a thickness of 17-19 mm, and the oil-resistant polyvinyl chloride outer layer 5 has a thickness of 21-24 mm.

Preferably, the mesh number of the tinned copper braided mesh 4 is preferably 12 mesh, and the shielding rate reaches 80%.

In addition, the tinned copper braided mesh 4 and the oil-resistant polyvinyl chloride outer layer 5 can also be provided with grounding steel wires, which can not only enhance the tensile strength, but also facilitate the rapid tearing of the oil-resistant polyvinyl chloride without tools. The outer covering layer 5 exposes the wire core 1, which facilitates wiring and brings convenience to use. When wiring, the shielding effect can be further improved by grounding.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the above-mentioned specific implementation manners, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. As described in the above embodiments of the utility model, wires and cables of other structures obtained by adopting the same or similar structure are all within the protection scope of the utility model.

Claims (3)

1. a kind of oil-resistant polyvinyl chloride gum cover shielded cable, it is characterised in that it is included by the stranded core of stranded conductor Tegillum in the polyvinyl chloride on the core, metallic cover resin belt, tin-coated copper mesh grid and oil resistant polychlorostyrene are coated on successively Ethene serving, metallic cover resin belt by metallic cover resin band along core be wrapped circumferentially around the core outer surface and Into；The wire includes the tegillum in the stranded core body of multiply copper conductor and the polyvinyl chloride being coated on the core body, should The thickness of tegillum is that the thickness of tegillum in 2.1~2.3mm, the polyvinyl chloride is 17~19mm, the oil resistant in polyvinyl chloride The thickness of polyvinyl chloride serving is 21~24mm.

2. oil-resistant polyvinyl chloride gum cover shielded cable according to claim 1, it is characterised in that：The tin-coated copper mesh grid Mesh number be 12 mesh.

3. oil-resistant polyvinyl chloride gum cover shielded cable according to claim 1 or 2, it is characterised in that：The tin-coated copper is compiled Knitmesh is with oil-resistant polyvinyl chloride serving provided with ground connection steel wire.