CN211907084U - Lightweight electromagnetic compatibility instrument cable - Google Patents

Abstract

The utility model discloses a lightweight electromagnetic compatibility instrument cable, its main points are: including main 3 sinle silks, shielding layer and oversheath. 3 wire cores are stranded into a cable. The structure of 3 sinle silks is the same, all includes 2 main sinle silks and sinle silk shielding layer. The 2 main wire cores are respectively provided with a conductor and an insulating layer from inside to outside along the respective radial directions. The insulating layer is extruded outside the conductor by adopting a cross-linked polyolefin material. After the 2 main wire cores are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber cloth is wrapped outside the main wire cores to form a wire core shielding layer. The lapping rate is 15 to 30 percent. After the 3 wire cores are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber cloth is wrapped outside the 3 wire cores to form a shielding layer. The lapping rate is 15 to 30 percent. The outer sheath is extruded outside the shielding layer by adopting a cross-linked polyolefin material.

Description

Lightweight electromagnetic compatibility instrument cable

Technical Field

The utility model relates to a power cable technical field specifically is a lightweight electromagnetic compatibility instrument cable.

Background

With the rapid development of science and technology and the continuous improvement of automation degree, the automation and intellectualization level of ships is higher and higher. The technical level of the electrical instrument matched with the ship is continuously improved, so that the requirement on the instrument cable matched with the ship is higher and higher. In the marine cable, the instrument cable is because the reason of transmission digital signal or analog signal, in the narrow and small region in space, can not keep apart with other cables completely, at transmission signal's in-process, receive the influence of other cables or equipment easily and reduce transmission parameter, make the signal distortion, therefore, in traditional signal cable, the shielding form is mostly aluminium-plastic tape around the package, copper wire is woven etc. one or more form and is compound, the form shielding effect is poor, the compound shielding effect of multiform is effectual, but single weight is heavy, the external diameter increases greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lightweight electromagnetic compatibility instrument cable of simple structure.

Realize the utility model discloses the basic technical scheme of purpose is: the utility model provides a lightweight electromagnetic compatibility instrument cable, its structural feature is: including main 3 sinle silks, shielding layer and oversheath. 3 wire cores are stranded into a cable. The structure of 3 sinle silks is the same, all includes 2 main sinle silks and sinle silk shielding layer.

The 2 main wire cores are respectively provided with a conductor and an insulating layer from inside to outside along the respective radial directions.

The insulating layer is extruded outside the conductor by adopting a cross-linked polyolefin material. After the 2 main wire cores are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber cloth is wrapped outside the main wire cores to form a wire core shielding layer. The lapping rate is 15 to 30 percent.

After the 3 wire cores are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber cloth is wrapped outside the 3 wire cores to form a shielding layer. The lapping rate is 15 to 30 percent.

The outer sheath is extruded outside the shielding layer by adopting a cross-linked polyolefin material.

Another basic technical scheme for realizing the purpose of the utility model is as follows: the utility model provides a lightweight electromagnetic compatibility instrument cable, its structural feature is: including main 3 sinle silks, shielding layer and oversheath. 3 wire cores are stranded into a cable. The structure of 3 sinle silks is the same, all includes 2 main sinle silks and sinle silk shielding layer.

The 2 main wire cores are respectively provided with a conductor and an insulating layer from inside to outside along the respective radial directions.

The insulating layer is extruded outside the conductor by adopting a cross-linked polyolefin material. After the 2 main wire cores are stranded into a cable, light-weight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber yarns are woven outside the main wire cores to form a wire core shielding layer. The weaving density is more than 88 percent.

After the 3 wire cores are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber yarns are woven outside the 3 wire cores to form a shielding layer. The weaving density is more than 88 percent.

The outer sheath is extruded outside the shielding layer by adopting a cross-linked polyolefin material.

The technical scheme based on the corresponding technical schemes is as follows: the thickness of the insulating layer of the main wire core is 0.1 mm to 0.6 mm.

The technical scheme based on the corresponding technical schemes is as follows: the outer sheath has a thickness of 1.0 mm to 2.1 mm.

The utility model discloses following beneficial effect has: (1) the utility model discloses a lightweight electromagnetic compatibility instrument cable simple structure, adopt the metallic fiber silk of high strength plating to make fibre cloth form the shielding layer around the package or directly weave into the shielding layer, it possesses and bears powerful load, tensile modulus is big, the elongation is little, light, pliability, resistant performance of buckling, compare original cable and adopt the copper product system to weave the structure as the cable weight greatly reduced of armor shielding layer, adopt the metallic fiber silk of high strength plating, possess very strong electromagnetic compatibility, effectively shield the interference of other cables and the production of instrument equipment to the signal. (2) The armored shielding layer is formed by weaving and armoring original tinned copper wires or galvanized steel wires into a shielding layer woven by light-weight high-strength metallized fiber wires, the effects of strengthening tension and overall shielding are achieved, and the shielding layer can also play a role in shielding low-frequency magnetic field interference and high-frequency electric field interference simultaneously by plating magnetic or non-magnetic metals. (3) The outer sheath is made of cross-linked polyolefin materials, so that the protective effects of oil resistance, UV resistance, moisture resistance and the like can be achieved, and the service life of the cable is prolonged.

Drawings

Fig. 1 is the utility model discloses a structural schematic of lightweight electromagnetic compatibility instrument cable.

The reference numbers in the drawings are:

a wire core 1, a main wire core 1-1, conductors 1-11, insulating layers 1-12, a wire core shielding layer 1-2,

the shielding layer (2) is provided with a shielding layer,

an outer sheath 3.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings. The description of the orientation of the utility model is performed according to the orientation shown in fig. 1, that is, the up-down left-right direction shown in fig. 1 is the up-down left-right direction of the description, the side towards which fig. 1 faces is the front side, and the side departing from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation must be provided.

(example 1)

See fig. 1, the utility model discloses a lightweight electromagnetic compatibility instrument cable includes main 3 sinle silks 1, shielding layer 2 and oversheath 3. 3 wire cores 1 are twisted into a cable. The 3 wire cores 1 are identical in structure and comprise 2 main wire cores 1-1 and wire core shielding layers 1-2.

The 2 main wire cores 1-1 are respectively provided with conductors 1-11 and insulating layers 1-12 from inside to outside along the respective radial direction.

The conductors 1-11 are formed by regularly twisting 5 types of conductors.

The insulating layers 1-12 are extruded outside the conductors 1-11 by adopting cross-linked polyolefin materials. The thickness of the insulating layers 1-12 is 0.1 mm to 0.6 mm, 0.5 mm in this embodiment.

After 2 main wire cores 1-1 are stranded into a cable, lightweight high-strength metal-plated or magnetic-plated or non-magnetic-metal-plated fiber cloth is wrapped outside the main wire cores 1-1 to form wire core shielding layers 1-2. The lapping rate is 15% to 30%, and 20% in this embodiment. The embodiment adopts metal-plated fiber cloth, and the metal-plated fiber cloth is woven by using metallized high polymer fiber yarns of Dalian-Yibang company.

After the 3 wire cores 1 are stranded into a cable, lightweight high-strength metal plating or magnetic plating or non-magnetic metal plating fiber cloth is wrapped outside the 3 wire cores 1 to form a shielding layer 2. The lapping rate is 15% to 30%, and 20% in this embodiment. The embodiment adopts metal-plated fiber cloth which is woven by metallized polymer fiber yarns of Daiiyi Banbury company.

The outer sheath 3 is extruded outside the shielding layer 2 by adopting a cross-linked polyolefin material. The thickness of the outer sheath 3 is 1.0 mm to 2.1 mm, 1.1 mm in this embodiment.

(example 2)

The rest of the embodiment is the same as the embodiment 1, and the difference is that after 2 main wire cores 1-1 are stranded into a cable, lightweight high-strength metal-plated or magnetic-plated or non-magnetic metal-plated fiber yarns are woven outside the main wire cores 1-1 to form wire core shielding layers 1-2, and the weaving density is larger than 88%. The metal-plated fiber yarn of this example was a metallized polymer fiber yarn from Daiiyi Banbury company.

(example 3)

The rest of the embodiment is the same as the embodiment 1, and the difference is that after the 3 wire cores 1 are stranded into a cable, lightweight high-strength metal-plated or magnetic-plated or non-magnetic metal-plated fiber yarns are woven outside the 3 wire cores 1 to form a shielding layer 2, and the weaving density is more than 88%. The metal-plated fiber yarn of this example was a metallized polymer fiber yarn from Daiiyi Banbury company.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides a lightweight electromagnetic compatibility instrument cable which characterized in that: the cable comprises 3 cable cores, a shielding layer and an outer sheath; 3 wire cores are stranded into a cable; the 3 wire cores have the same structure and respectively comprise 2 main wire cores and a wire core shielding layer;

the 2 main wire cores are respectively provided with a conductor and an insulating layer from inside to outside along the respective radial direction;

the insulating layer is extruded outside the conductor by adopting a cross-linked polyolefin material; 2 main wire cores are stranded into a cable, and then a lightweight high-strength metal-plated or magnetic-plated or non-magnetic metal-plated fiber cloth is wrapped outside the main wire cores to form a wire core shielding layer, wherein the wrapping and covering rate of the wire core shielding layer is 15-30%;

after the 3 wire cores are stranded into a cable, lightweight high-strength metal-plated or magnetic-plated or non-magnetic metal-plated fiber cloth is wrapped outside the 3 wire cores to form a shielding layer, and the wrapping covering rate of the shielding layer is 15-30%;

the outer sheath is extruded outside the shielding layer by adopting a cross-linked polyolefin material.

2. The lightweight electromagnetic compatibility instrument cable of claim 1, wherein: the thickness of the insulating layer of the main wire core is 0.1 mm to 0.6 mm.

3. The lightweight electromagnetic compatibility instrument cable of claim 1, wherein: the outer sheath has a thickness of 1.0 mm to 2.1 mm.

4. The utility model provides a lightweight electromagnetic compatibility instrument cable which characterized in that: the cable comprises 3 cable cores, a shielding layer and an outer sheath; 3 wire cores are stranded into a cable; the 3 wire cores have the same structure and respectively comprise 2 main wire cores and a wire core shielding layer;

the 2 main wire cores are respectively provided with a conductor and an insulating layer from inside to outside along the respective radial direction;

the insulating layer is extruded outside the conductor by adopting a cross-linked polyolefin material; 2 main wire cores are stranded into a cable, and then light-weight high-strength metal-plated or magnetic-plated or non-magnetic-metal-plated fiber yarns are woven outside the main wire cores to form a wire core shielding layer, wherein the weaving density of the wire core shielding layer is larger than 88%;

after the 3 wire cores are stranded into a cable, lightweight high-strength metal-plated or magnetic-plated or non-magnetic-metal-plated fiber yarns are woven outside the 3 wire cores to form a shielding layer, wherein the weaving density of the shielding layer is greater than 88%;

the outer sheath is extruded outside the shielding layer by adopting a cross-linked polyolefin material.

5. The lightweight electromagnetic compatibility instrument cable of claim 4, wherein: the thickness of the insulating layer of the main wire core is 0.1 mm to 0.6 mm.

6. The lightweight electromagnetic compatibility instrument cable of claim 4, wherein: the outer sheath has a thickness of 1.0 mm to 2.1 mm.

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