CN213366205U

CN213366205U - Anti-electromagnetic pulse interference silicon rubber insulated wire

Info

Publication number: CN213366205U
Application number: CN202022537290.7U
Authority: CN
Inventors: 杨林臻; 邹明; 张公卓
Original assignee: Hunan Valin Wire and Cable Co Ltd
Current assignee: Hunan Valin Wire and Cable Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-04
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an anti-electromagnetic pulse interference's silicon rubber insulated wire, including wire, insulating layer, band layer, internal shield layer, outer shielding layer and sheath are from inside to outside parcel wire in proper order, the conductor is twisted by the tinned wire and is formed, and the material of insulating layer is high tear-resistant silicon rubber, and outside the insulating layer, around covering F4 film, the internal shield layer is woven by the tinned wire, and the outer shielding layer is woven by ferronickel alloy silk and is formed, the utility model provides an anti-electromagnetic pulse interference's silicon rubber insulated wire's sheath material adopts and gathers perfluor ethylene propylene (FEP), can strengthen the wear resistance of electric wire; meanwhile, a double-braided structure formed by braiding tinned copper wires and braiding nickel-iron alloy wires is adopted for shielding, so that the shielding efficiency index of the wire is not less than 60dB, and the anti-electromagnetic pulse interference performance of the wire is effectively improved.

Description

Anti-electromagnetic pulse interference silicon rubber insulated wire

Technical Field

The utility model relates to the technical field of electric wire, especially, relate to an anti-electromagnetic pulse interference's silicon rubber insulated wire.

Background

The rubber cable is a wire or cable with an insulating layer and a sheath made of rubber. The insulating layer and the sheath are made of natural rubber, styrene butadiene rubber, ethylene propylene rubber and the like, and the insulating layer and the sheath not only meet the insulating property and the physical and mechanical properties, but also need aging resistance and wear resistance, and some products need oil resistance and flame retardance. The cable is classified into a power cable, a control and signal cable, a ship cable, an aviation cable, a mine cable, an installation wire, and the like according to the application. At present, the following conditions exist in the common silicone rubber insulated wire: the sheath material is silicon rubber, so that the surface of the wire has poor wear resistance; the common products have no anti-electromagnetic pulse interference characteristic, so that the signal transmission is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the surface wear resistance of the common silicon rubber insulated wire in the prior art is not good, and the common silicon rubber insulated wire does not have the characteristic of anti-electromagnetic pulse interference, and the provided silicon rubber insulated wire of anti-electromagnetic pulse interference.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an anti-electromagnetic pulse interference's silicon rubber insulated wire, includes wire, insulating layer, band layer, internal shield layer, outer shielding layer and sheath wrap up the wire from inside to outside in proper order.

Specifically, the wire is formed by twisting 19 tinned copper wires with the diameter of 0.16mm, the twisted wire is in a regular twisting form, the twisting direction of the outermost diameter is in the left direction, the pitch diameter ratio of the inner layer is not more than 30 times, and the pitch diameter ratio of the outer layer is not more than 16 times.

Furthermore, the insulating layer is made of high tear-resistant silicon rubber, the insulating layer is tightly extruded on the outer wall of the lead, the nominal thickness of the insulating layer is 0.55mm, the outer diameter of the insulating layer is 1.95-2.15mm, the average thickness of the insulating layer is not less than the nominal thickness, and the thickness of the thinnest part is not less than 90-0.1 mm of the nominal thickness.

Further, a directional or semi-directional F4 film with the nominal thickness ranging from 0.035 mm to 0.05mm is wrapped outside the insulating layer to form a wrapping layer, and the wrapping overlapping rate of the wrapping layer is not less than 20%.

Further, the inner shielding layer is formed by weaving tinned copper wires with the nominal diameter of 0.10mm, and the weaving density is not less than 80%; the outer shielding layer is formed by weaving nickel-iron alloy wires with the nominal diameter of 0.12mm, and the weaving density is not less than 85%.

Further, the material of the sheath is Fluorinated Ethylene Propylene (FEP). The sheath is tightly extruded on the outer wall of the outer shielding layer, the nominal thickness of the sheath is 0.25mm, the maximum outer diameter of the finished wire is 3.90mm, the average thickness of the sheath is not less than the nominal thickness, and the thinnest thickness is not less than 80% of the nominal thickness.

Compared with the prior art, the beneficial effects of the utility model are that: the sheath material of the anti-electromagnetic pulse interference silicon rubber insulated wire adopts Fluorinated Ethylene Propylene (FEP), so that the wear resistance of the wire can be enhanced; meanwhile, a double-braided structure formed by braiding tinned copper wires and braiding nickel-iron alloy wires is adopted for shielding, so that the shielding efficiency index of the wire is not less than 60dB, and the anti-electromagnetic pulse interference performance of the wire is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the anti-electromagnetic pulse interference silicone rubber insulated wire.

In the figure: 1. a wire; 2. an insulating layer; 3. a belting layer; 4. an inner shield layer; 5. an outer shield layer; 6. a sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the silicon rubber insulated wire capable of resisting electromagnetic pulse interference comprises a wire 1, an insulating layer 2, a belting layer 3, an inner shielding layer 4, an outer shielding layer 5 and a sheath 6, wherein the insulating layer 2, the belting layer 3, the inner shielding layer 4, the outer shielding layer 5 and the sheath 6 wrap the wire 1 from inside to outside in sequence.

Specifically, the lead 1 is formed by twisting 19 tinned copper wires with the diameter of 0.16mm, the twisted lead adopts a regular twisting mode, the twisting direction of the outermost diameter is the left direction, the pitch diameter ratio of the inner layer is not more than 30 times, and the pitch diameter ratio of the outer layer is not more than 16 times.

Further, the insulating layer 2 is made of high tear-resistant silicon rubber, the insulating layer is tightly extruded on the outer wall of the lead 1, the nominal thickness of the insulating layer 2 is 0.55mm, the outer diameter of the insulating layer 2 is 1.95-2.15mm, the average thickness of the insulating layer 2 is not less than the nominal thickness, and the thickness of the thinnest part is not less than 90-0.1 mm of the nominal thickness.

Further, a wrapping layer of oriented or semi-oriented F4 film with the nominal thickness ranging from 0.035 mm to 0.05mm is wrapped outside the insulating layer 2 to form the wrapping layer 3, and the wrapping overlapping rate of the wrapping layer 3 is not less than 20%.

Further, the inner shielding layer 4 is formed by weaving tinned copper wires with the nominal diameter of 0.10mm, and the weaving density is not less than 80%; the outer shielding layer 5 is formed by weaving nickel-iron alloy wires with the nominal diameter of 0.12mm, and the weaving density is not less than 85%.

Further, the material of the sheath 6 is Fluorinated Ethylene Propylene (FEP). The sheath 6 is tightly extruded on the outer wall of the outer shielding layer 5, the nominal thickness of the sheath 6 is 0.25mm, the maximum outer diameter of the finished wire is 3.90mm, the average thickness of the sheath is not less than the nominal thickness, and the thinnest thickness is not less than 80% of the nominal thickness.

The sheath material of the silicon rubber insulated wire capable of resisting electromagnetic pulse interference in the embodiment adopts Fluorinated Ethylene Propylene (FEP), so that the wear resistance of the wire can be enhanced; meanwhile, a double-braided structure formed by braiding tinned copper wires and braiding nickel-iron alloy wires is adopted for shielding, so that the shielding efficiency index of the wire is not less than 60dB, and the anti-electromagnetic pulse interference performance of the wire is effectively improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The silicon rubber insulated wire is characterized by comprising a wire (1), an insulating layer (2), a belting layer (3), an inner shielding layer (4), an outer shielding layer (5) and a sheath (6), wherein the insulating layer (2), the belting layer (3), the inner shielding layer (4), the outer shielding layer (5) and the sheath (6) wrap the wire (1) from inside to outside in sequence;

the inner shielding layer (4) is formed by weaving tinned copper wires with nominal diameters of 0.10mm, and the weaving density is not less than 80%; the outer shielding layer (5) is formed by weaving nickel-iron alloy wires with the nominal diameter of 0.12mm, and the weaving density is not less than 85%;

the sheath (6) is made of fluorinated ethylene propylene.

2. The silicon rubber insulated wire capable of resisting electromagnetic pulse interference according to claim 1, wherein the lead (1) is formed by twisting 19 tinned copper wires with the diameter of 0.16mm in the outermost twisting direction is in the left direction, the inner layer pitch diameter ratio is not more than 30 times, and the outer layer pitch diameter ratio is not more than 16 times.

3. The silicon rubber insulated wire against electromagnetic pulse interference according to claim 1, wherein the material of the insulating layer (2) is high tear-resistant silicon rubber, and the outer diameter of the insulating layer (2) is 1.95-2.15 mm.

4. The electromagnetic pulse interference resistant silicone rubber insulated wire according to claim 1, wherein said wrapping layer (3) is a directional or semi-directional F4 film with a nominal thickness in the range of 0.035-0.05mm and a wrapping overlap of not less than 20%.

5. The electromagnetic pulse interference resistant silicone rubber insulated wire according to claim 1, wherein the sheath (6) is extruded outside the outer shielding layer (5), the nominal thickness of the sheath (6) is 0.25mm, and the maximum outer diameter of the sheath (6) is 3.90 mm.