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CN-224232372-U - Multilayer internal insulation shielding signal cable

CN224232372UCN 224232372 UCN224232372 UCN 224232372UCN-224232372-U

Abstract

The utility model relates to the technical field of cables, in particular to a multilayer internal insulation shielding signal cable, which comprises a signal cable body, wherein the signal cable body comprises a conductor core wire, an internal insulation layer is coated outside the conductor core wire, a first insulation layer is arranged outside the internal insulation layer, an internal shielding layer is matched with the internal insulation layer, an external insulation layer is coated outside the internal shielding layer, and a sheath layer is arranged outside the external insulation layer.

Inventors

  • LI ZHIFAN
  • YOU GANHUA
  • ZENG ZHIHUI
  • GAO JIEFENG

Assignees

  • 江苏优奈特电缆有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (7)

  1. 1. The utility model provides an inside insulating shielding signal cable of multilayer, includes the signal cable body, a serial communication port, the signal cable body includes conductor heart yearn (1), conductor heart yearn (1) outside cladding is provided with interior insulating layer (2), the outside of interior insulating layer (2) is provided with first insulating layer (3), interior insulating layer (2) cooperation is provided with interior shielding layer (4), interior shielding layer (4) outsourcing is covered and is equipped with outer insulating layer (5), the outside of outer insulating layer (5) is provided with restrictive coating (6).
  2. 2. The multilayer internal insulation shielding signal cable according to claim 1, wherein the conductor core wire (1) is formed by twisting a plurality of metal copper wires, the conductor core wire (1) is formed by concentrically twisting, and a nano-scale graphene coating (7) is coated on the surface of the conductor core wire (1).
  3. 3. The multilayer internal insulation shielded signal cable of claim 1, wherein the internal insulation layer (2) is made of polytetrafluoroethylene material, the thickness of the internal insulation layer (2) is uniform, the thickness of the internal insulation layer (2) is in a range of 0.1mm-0.3mm, the first insulation layer (3) is made of crosslinked polyethylene material, and the thickness of the first insulation layer (3) is in a range of 0.2mm-0.5 mm.
  4. 4. The multilayer internal insulation shielding signal cable according to claim 1, wherein a lubricating layer (8) is further arranged between the conductor core wire (1) and the internal insulation layer (2), the lubricating layer (8) is a polytetrafluoroethylene micro powder coating, and the coating thickness of the lubricating layer (8) is 0.01-0.03 mm.
  5. 5. The multilayer internal insulation shielded signal cable according to claim 1, wherein the internal shielding layer (4) is woven from tin-plated copper wires, the weaving density is not less than 85%, the external insulating layer (5) is made of polyimide film, and the thickness of the external insulating layer (5) is 0.05mm-0.15mm.
  6. 6. The multilayer internal insulation shielding signal cable according to claim 1, wherein an external shielding layer (9) is arranged between the external insulation layer (5) and the sheath layer (6), the external shielding layer (9) is an aluminum-plastic composite tape wrapping shielding layer, and a micropore structure (10) is arranged on the surface of the aluminum-plastic composite tape of the external shielding layer (9), and the micropore diameter is 0.01-0.03mm.
  7. 7. The multilayer internal insulation shielding signal cable according to claim 1, wherein the sheath layer (6) is made of high-strength polyurethane, the thickness of the sheath layer (6) is 0.3-0.6mm through extrusion molding, the surface of the sheath layer (6) is frosted, a plurality of reinforcing ribs (11) are embedded in the sheath layer (6), the reinforcing ribs (11) are uniformly distributed along the axial direction of the cable, the reinforcing ribs (11) are made of glass fiber reinforced plastics, and the diameter of the reinforcing ribs is 0.5-1.0mm.

Description

Multilayer internal insulation shielding signal cable Technical Field The utility model relates to the technical field of cables, in particular to a multilayer internal insulation shielding signal cable. Background In the present informatization age, the signal cable is used as an important carrier for transmitting electric signals or optical signals, and is widely applied to various fields such as communication, electronics, industrial control and the like. With the continuous development of technology, the performance requirements on the signal cable are also higher and higher, especially in the aspects of stability, anti-interference capability, mechanical strength and the like of signal transmission. Conventional signal cables have certain limitations in terms of insulation and shielding. For example, the material selection and the structural design of the insulating layer may not effectively prevent signal leakage and external interference, resulting in degradation of signal transmission quality, the shielding effect of the shielding layer is not ideal enough and difficult to resist complex electromagnetic environment interference, and meanwhile, the mechanical strength of the cable is insufficient and is easily damaged in the installation and use processes, thus influencing the service life and the reliability of signal transmission. Therefore, it is important to develop a signal cable having excellent insulation, shielding properties and high mechanical strength. Disclosure of utility model In order to solve some problems in the prior art, the utility model provides a multilayer internal insulation shielding signal cable, which adopts multilayer insulation and shielding design by optimizing the internal structure of the cable, improves the stability and anti-interference capability of signal transmission, enhances the mechanical strength of the cable and prolongs the service life of the cable. In order to achieve the above purpose, the utility model provides a multilayer internal insulation shielding signal cable, which comprises a signal cable body, wherein the signal cable body comprises a conductor core wire, an internal insulation layer is coated outside the conductor core wire, a first insulation layer is arranged outside the internal insulation layer, an internal shielding layer is matched with the internal insulation layer, an external insulation layer is coated outside the internal shielding layer, and a sheath layer is arranged outside the external insulation layer. As a further improvement of the utility model, in order to enable the arrangement among the wires in the conductor core wire to be more compact and uniform, the interference and loss generated by uneven wire distribution in the signal transmission process are reduced, the conductor core wire is formed by twisting a plurality of metal copper wires, the conductor core wire is formed by concentric twisting, and the surface of the conductor core wire is coated with a layer of nano-scale graphene coating. As a further improvement of the utility model, in order to effectively reduce attenuation of signals in the transmission process and ensure strength and quality of the signals, the inner insulating layer is made of polytetrafluoroethylene materials, the thickness of the inner insulating layer is uniform, the thickness of the inner insulating layer ranges from 0.1mm to 0.3mm, the first insulating layer is made of crosslinked polyethylene materials, and the thickness of the first insulating layer ranges from 0.2mm to 0.5 mm. As a further improvement of the utility model, in order to reduce the friction force between the conductor core wire and the inner insulating layer, the cable is smoother in the bending and mounting processes, the risk of damage to the conductor core wire and damage to the insulating layer caused by friction is reduced, a lubricating layer is further arranged between the conductor core wire and the inner insulating layer, the lubricating layer is a polytetrafluoroethylene micro powder coating, and the thickness of the lubricating layer is 0.01-0.03 mm. As a further improvement of the utility model, in order to form effective electromagnetic shielding, prevent mutual interference between internal signals and interference of external electromagnetic fields on signals, and improve accuracy and stability of signal transmission, the inner shielding layer is formed by braiding tinned copper wires, the braiding density is not less than 85%, the outer insulating layer is made of polyimide film, and the thickness of the outer insulating layer is 0.05-0.15 mm. As a further improvement of the utility model, in order to effectively block external electromagnetic interference, the flexibility of the shielding layer is increased, so that the cable is easier to bend and mount, an outer shielding layer is arranged between the outer insulating layer and the sheath layer, the outer shielding layer is an aluminum-plastic composite be