High-efficiency conductive electrostatic shielding cable

Abstract

The utility model relates to the technical field of cables, and discloses a high-efficiency conductive electrostatic shielding cable, which comprises a conductive filler and a plurality of leads, an inner lining layer is arranged outside the leads, a metal electrostatic shielding layer is arranged outside the inner lining layer, the metal electrostatic shielding layer is grounded through a grounding cable, and the conductive filler is arranged outside the metal electrostatic shielding layer. A metal electrostatic shielding layer is arranged outside the cable, a middle protection layer is arranged outside the metal electrostatic shielding layer, an armor layer is arranged outside the middle protection layer, an outer sheath is arranged outside the armor layer, an anti-static conductive rubber layer is arranged outside the outer sheath, and the anti-static conductive rubber layer and the ground are grounded. The anti-static conductive rubber layer and the metal electrostatic shielding layer form an inner anti-static structure and an outer anti-static structure, the anti-static capacity is effectively improved, and meanwhile, compared with an anti-static coating, the conductive performance of the anti-static conductive rubber layer is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and specifically relates to an electrostatic shielding cable with high conductivity. Background Art

[0002] A cable is a wire that transmits electricity or information from one place to another. It is usually a cable similar to a rope formed by stranding several or several groups of wires (at least two wires in each group). The wires in each group are insulated from each other and are often twisted around a center, and the whole is wrapped with a highly insulating covering layer. The cable has the characteristics of conducting electricity inside and being insulated outside.

[0003] In order to prevent static electricity, existing cables generally have an anti-static layer provided on the cable or an anti-static coating applied to the outside of the cable. Generally, cables have a single anti-static structure, which has limitations in anti-static use in some complex environments. At the same time, when an anti-static coating is applied to the outside of the cable, the sprayed coating is prone to uneven spraying or scratching, which affects the static conduction performance, and the use stability needs to be improved. In order to improve the anti-static ability of the cable and the stability of static conduction, an electrostatic shielding cable with high conductivity is provided. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electrostatic shielding cable with high conductivity in order to solve the above-mentioned problems.

[0005] The technical scheme adopted by the utility model is as follows: An electrostatic shielding cable with high conductivity includes conductive fillers and a plurality of wires. An inner lining layer is provided outside the plurality of wires. A metal electrostatic shielding layer is provided inside and outside the inner lining layer. The metal electrostatic shielding layer is grounded through a grounding cable. An intermediate sheath is provided outside the metal electrostatic shielding layer. An armor layer is provided outside the intermediate sheath. An outer sheath is provided outside the armor layer. An antistatic conductive rubber layer is provided outside the outer sheath. The antistatic conductive rubber layer is grounded to the ground.

[0006] In a preferred embodiment, the antistatic conductive rubber layer is composed of conductive fillers and silicone rubber. The conductive filler is conductive carbon black. The resistance value of the antistatic conductive rubber layer is 10^4 - 10^8 Ω·cm.

[0007] In a preferred embodiment, the inner lining layer, the intermediate sheath, and the outer sheath are all made of polyvinyl chloride.

[0008] In a preferred embodiment, the metal electrostatic shielding layer is composed of copper braiding.

[0009] In a preferred embodiment, the armor layer is made of steel.

[0010] In a preferred embodiment, the outside of the wire includes a copper conductor and an insulating layer, the insulating layer is wrapped outside the copper conductor, and the insulating layer is made of polyvinyl chloride.

[0011] In a preferred embodiment, a filling cord is filled in the gap between the wire and the inner lining layer.

[0012] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, an antistatic conductive rubber layer is used to form the first antistatic structure on the outside. This structure will not cause uneven spraying or rubbing, which may affect the antistatic ability, compared with the existing sprayed antistatic coating structure. The antistatic ability is more stable. And when the external antistatic conductive rubber layer of the above cable is broken or damaged during use and cannot quickly conduct static electricity, at this time, the static electricity can be conducted by the metal static shielding layer inside the cable, thus forming the second antistatic structure. The whole structure forms a double antistatic structure, and the cable has good antistatic ability, making the cable suitable for antistatic use in complex environments, and the cable will be safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the present utility model;

[0015] Figure 2 is a schematic cross-sectional diagram of the present utility model.

[0016] Reference numerals in the figures: 1 - wire, 2 - inner lining layer, 3 - metal static shielding layer, 4 - intermediate sheath, 5 - armor layer, 6 - outer sheath, 7 - antistatic conductive rubber layer, 8 - copper conductor, 9 - insulating layer, 10 - filling cord. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Next, a highly conductive electrostatic shielding cable according to an embodiment of the present utility model will be described in detail in conjunction with Figure 1 - Figure 2 DETAILED DESCRIPTION OF AN EMBODIMENT OF THE PRESENT UTILITY MODEL

[0019] Embodiment:

[0020] A highly conductive electrostatic shielding cable provided by an embodiment of the present utility model is referred toFigures 1 to 2 As shown in the figure, it includes conductive fillers and multiple wires 1. An inner lining layer 2 is arranged outside the multiple wires 1. A metal electrostatic shielding layer 3 is arranged outside the inner lining layer 2. The metal electrostatic shielding layer 3 is grounded through a grounding cable. An intermediate sheath layer 4 is arranged outside the metal electrostatic shielding layer 3. An armor layer 5 is arranged outside the intermediate sheath layer 4. An outer sheath 6 is arranged outside the armor layer 5. An antistatic conductive rubber layer 7 is arranged outside the outer sheath 6. The antistatic conductive rubber layer 7 is grounded to the ground. In this structure, the wires, the inner lining layer 2, the metal electrostatic shielding layer 3, the intermediate sheath layer 4, the armor layer 5, the outer sheath 6 and the antistatic conductive rubber layer 7 form an antistatic cable with high conductivity.

[0021] Among them, the antistatic conductive rubber layer 7 forms the first antistatic structure on the outside. Compared with the existing sprayed antistatic coating structure, this structure will not have uneven spraying or scratching, which will affect the antistatic ability. The antistatic ability is more stable. And when the external antistatic conductive rubber layer 7 is broken and damaged during the use of the above cable and the static electricity cannot be quickly discharged, at this time, the static electricity can be discharged by the metal electrostatic shielding layer 3 inside the cable, thus forming a double-channel antistatic structure, and the cable will be safer to use.

[0022] Reference Figures 1 to 2 As shown in the figure, the antistatic conductive rubber layer 7 is composed of conductive fillers and silicone rubber. The conductive filler is conductive carbon black. The resistance value of the antistatic conductive rubber layer 7 is 10^4 - 10^8 Ω·cm.

[0023] Reference Figures 1 to 2 As shown in the figure, the inner lining layer 2, the intermediate sheath layer 4 and the outer sheath 6 are all made of polyvinyl chloride.

[0024] Reference Figures 1 to 2 As shown in the figure, the metal electrostatic shielding layer 3 is composed of copper braiding. Copper has good electrical conductivity and is convenient for efficiently conducting static electricity.

[0025] Reference Figures 1 to 2 As shown in the figure, the armor layer 5 is made of steel. The steel armor layer 5 has good compressive strength.

[0026] Reference Figures 1 to 2 As shown in the figure, the outside of the wire 1 includes a copper conductor 8 and an insulating layer 9. The insulating layer 9 is wrapped outside the copper conductor 8. The insulating layer 9 is made of polyvinyl chloride. This structure uses the copper conductor 8 and the insulating layer 9 to form the wire 1 structure.

[0027] Reference Figures 1 to 2 As shown in the figure, a filling cord 10 is filled in the gap between the wire 1 and the inner lining layer 2. This structure uses the filling cord 10 to improve the roundness of the cable, enhance the softness and flexibility of the cable, improve the anti-tensile and anti-swaying ability of the cable, and at the same time improve the flame retardant performance.

[0028] The implementation principle of an electrostatic shielding cable with high efficiency conductivity in the embodiments of the present application is as follows: during use, the antistatic conductive rubber layer 7 is utilized to form the first antistatic structure on the outside. Compared with the existing structure of spraying antistatic coating, this structure will not have uneven spraying or scratching, which may affect the antistatic ability. The antistatic ability is more stable. Moreover, when the external antistatic conductive rubber layer 7 is broken or damaged during the use of the above cable and the static electricity cannot be quickly conducted out, at this time, the static electricity can be conducted out by the metal electrostatic shielding layer 3 inside the cable, thus forming the second antistatic structure. The whole structure forms a double-channel antistatic structure, and the cable has good antistatic ability, making the cable suitable for antistatic use in complex environments and the cable will be safer to use.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrostatic shielding cable with high conductivity, comprising a conductive filler and a plurality of conductors (1), characterized in that: An inner lining layer (2) is provided outside multiple said wires (1). A metal static shielding layer (3) is provided outside the inner lining layer (2). The metal static shielding layer (3) is grounded through a grounding cable. An intermediate sheath layer (4) is provided outside the metal static shielding layer (3). An armor layer (5) is provided outside the intermediate sheath layer (4). An outer sheath (6) is provided outside the armor layer (5). An antistatic conductive rubber layer (7) is provided outside the outer sheath (6). The antistatic conductive rubber layer (7) is grounded to the ground.

2. The highly efficient conductive electrostatic shielding cable according to claim 1, characterized in that: The conductive filler is conductive carbon black. The resistance value of the antistatic conductive rubber layer (7) is 10^4 - 10^8 Ω·cm.

3. The highly conductive electrostatic shielding cable according to claim 1, wherein: The inner lining layer (2), the intermediate sheath layer (4) and the outer sheath (6) are all made of polyvinyl chloride.

4. An electrostatic shielding cable with high conductivity as described in claim 1, characterized in that: The metal static shielding layer (3) is composed of copper braiding.

5. The highly conductive electrostatic shielding cable according to claim 1, wherein: The armor layer (5) is made of steel.

6. An electrostatic shielding cable with high conductivity as described in claim 1, characterized in that: Outside the wire (1) includes a copper conductor (8) and an insulating layer (9). The insulating layer (9) is wrapped outside the copper conductor (8). The insulating layer (9) is made of polyvinyl chloride.

7. An electrostatic shielding cable with high efficiency conductivity as claimed in claim 1, characterized in that: A filling rope (10) is filled in the gap between the wire (1) and the inner lining layer (2).

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