CN217848279U - Salt fog prevention ultrahigh shielding radio frequency coaxial cable - Google Patents
Salt fog prevention ultrahigh shielding radio frequency coaxial cable Download PDFInfo
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- CN217848279U CN217848279U CN202222028398.2U CN202222028398U CN217848279U CN 217848279 U CN217848279 U CN 217848279U CN 202222028398 U CN202222028398 U CN 202222028398U CN 217848279 U CN217848279 U CN 217848279U
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Abstract
The utility model relates to a coaxial cable field discloses an anti-salt fog superelevation shielding radio frequency coaxial cable, including many heart yearns, the utility model discloses in, many the skin of heart yearn is provided with shielding radio frequency structure and cable protection structure, shielding radio frequency structure includes electrically conductive cloth, is close to many the skin of heart yearn is provided with the insulating layer, is close to the skin of insulating layer is provided with electrically conductive cloth, cable protection structure includes metal level and oversheath, is close to electrically conductive cloth's skin is provided with the metal level, is close to the skin of metal level is provided with the oversheath, the oversheath includes the fire-retardant master batch of YJV sheath and PE, the YJV sheath is located the outer layer that leans on of oversheath, the fire-retardant master batch of PE is located the oversheath by the inlayer. The novel cable has excellent chemical corrosion resistance in salt spray and electromagnetic radio frequency interference environments, prolongs the service life, has strong electromagnetic shielding performance, and can effectively resist external electromagnetic radio frequency interference.
Description
Technical Field
The utility model relates to a coaxial cable field especially relates to a salt fog prevention superelevation shielding radio frequency coaxial cable.
Background
Cables are wire products used to transmit electrical (magnetic) energy, information and to effect electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, protective layers and sheaths, or additional uninsulated conductors, are provided in the cable, either overhead or installed underground or underwater, for telecommunication or power transmission.
Through retrieval, chinese patent discloses a coaxial cable (publication No. CN 201576487U), which is characterized in that a multilayer sheath is provided to prevent radial through defects of the sheath due to particles and impurities in the sheath material, thereby ensuring and improving the electrical performance and transmission performance of the cable, but the cable still has the problems of insufficient salt spray corrosion resistance and poor electromagnetic interference signal shielding performance, thereby causing a series of problems of low cable service life, easy damage and short replacement cycle.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the super high shielding radio frequency coaxial cable of salt fog that provides, the oversheath of this novel outer setting of cable can resist the chemical corrosion of salt fog and have fire-retardant benefit again, and the electrically conductive cloth of inside setting has the advantage that high benefit shielded electromagnetic radio frequency interference moreover.
In order to achieve the above purpose, the utility model provides a following technical scheme: a salt fog resistant ultrahigh-shielding radio frequency coaxial cable comprises a plurality of core wires, wherein a shielding radio frequency structure and a cable protection structure are arranged on the outer layer of the core wires, the shielding radio frequency structure comprises conductive cloth, an insulating layer is arranged on the outer layer close to the core wires, the conductive cloth is arranged on the outer layer close to the insulating layer, the cable protection structure comprises a metal layer and an outer sheath, the metal layer is arranged on the outer layer close to the conductive cloth, the outer sheath is arranged on the outer layer close to the metal layer, the outer sheath comprises a YJV sheath and PE flame-retardant master batches, the YJV sheath is located on the outer layer of the outer sheath, and the PE flame-retardant master batches are located on the inner layer of the outer sheath;
through the technical scheme, under the salt spray environment, the YJV sheath of oversheath outer layer has excellent electrical property and chemical corrosion resistance, make this cable can guarantee power transmission for a long time, service life has been prolonged, in addition, the YJV sheath still has simple structure and light in weight's characteristics, be convenient for lay and install at long range cable, and the fire-retardant master batch of PE that the oversheath inlayer adopted has the fire-retardant performance of efficient, the spark that cable current overload produced under the unexpected condition has been prevented from spreading, the security of cable use has been improved, make the protective benefits of cable improve greatly, under the electromagnetic radio frequency interference environment, the electrically conductive cloth that the cable inside adopted has powerful electromagnetic shielding nature, can effectively resist outside electromagnetic radio frequency interference, also have fine thinness simultaneously, pliability, can satisfy the bending deformation when the cable uses, be convenient for the storage and transportation of cable, it is convenient and the practicality is strong.
Furthermore, the conductive cloth material is a thin material formed by plating an extremely thin copper and nickel metal film layer on a chemical fiber cloth substrate;
by adopting the technical scheme, the electromagnetic shielding performance of the conductive cloth can be greatly improved by adopting the extremely thin copper and nickel metal layers plated on the chemical fiber cloth base, and the shielding range is 100K-3GHz.
Further, the material of the YJV sheath is cross-linked polyethylene insulating polyvinyl chloride;
through the technical scheme, compared with the traditional PVC material, the cross-linked polyethylene insulated polyvinyl chloride adopted by the YJV sheath has higher rated temperature and insulating property, excellent electrical property and acid and alkali chemical corrosion resistance, and the service life of the cable can be effectively prolonged.
Further, the main component of the PE flame-retardant master batch is polyethylene flame-retardant master batch;
through the technical scheme, the polyethylene flame-retardant master batch is an efficient and environment-friendly additive flame-retardant master batch, has the characteristic of high flame-retardant efficiency, and effectively ensures the safety of cables in use.
Furthermore, the YJV sheath and the PE flame-retardant master batch are connected in a bonding manner;
through above-mentioned technical scheme, adopt the connected mode of bonding can effectively guarantee the stability of cable outside protective layer.
Furthermore, the metal layer is made of an aluminum magnesium alloy layer with the tensile strength of 350-500 MPa;
through above-mentioned technical scheme, the aluminium material has certain salt fog's of preventing efficiency, can block the infiltration of salt fog, and aluminium magnesium alloy material can improve the tensile strength of cable moreover, satisfies the daily slight stretching and the deformation of cable use to prevent to destroy its inner structure.
Further, the maximum outer diameter of the outer sheath is no more than 3.6mm;
through above-mentioned technical scheme, according to the resistance law, the cross section radius of control cable is unqualified in order to prevent the resistance value of the cable of manufacturing.
Furthermore, the insulating layer is made of polyvinyl chloride;
through the technical scheme, the insulating layer made of the polyvinyl chloride material has the characteristic of good insulating property and is low in production cost.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, under the salt spray environment, the outer YJV sheath of oversheath has excellent electrical property and chemical resistance for power transmission can be guaranteed for a long time to this cable, has prolonged life, and the fire-retardant master batch of PE that the oversheath inlayer adopted has the fire-retardant performance of efficient moreover, has prevented that the spark that cable current overloads and produces from stretching under the unexpected condition, has improved the security that the cable used, makes the protection benefit of cable improve greatly.
2. The utility model discloses in, under the electromagnetic radio frequency interference environment, the electrically conductive cloth of the inside adoption of cable has powerful electromagnetic shield nature, can effectively resist outside electromagnetic radio frequency interference, also has fine thinness nature, pliability simultaneously, and bending deformation when can satisfying the cable use, the cable of being convenient for accomodates and transports, and convenient and practicality is strong.
Drawings
Fig. 1 is a cross-sectional view of a salt fog resistant ultra-high shielding rf coaxial cable according to the present invention;
fig. 2 is a perspective view of the salt spray prevention ultrahigh shielding radio frequency coaxial cable provided by the present invention;
fig. 3 is a longitudinal sectional view of the salt spray resistant ultra-high shielding rf coaxial cable according to the present invention;
fig. 4 is a partial view of the outer sheath of the salt fog resistant ultra-high shielding radio frequency coaxial cable provided by the present invention.
Illustration of the drawings:
1. a core wire; 2. an insulating layer; 3. a conductive cloth; 4. a metal layer; 5. an outer sheath; 6. a YJV sheath; 7. PE flame-retardant master batch.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a salt fog prevention superelevation shielding radio frequency coaxial cable, includes many heart yearns 1, and the skin of many heart yearns 1 is provided with shielding radio frequency structure and cable protection structure.
Shielding radio frequency structure includes electrically conductive cloth 3, and the skin that is close to many heart yearns 1 is provided with insulating layer 2, and insulating layer 2 can effectively protect the heart yearn 1 of the internal transmission signal of telecommunication, and the skin that is close to insulating layer 2 is provided with electrically conductive cloth 3, and electrically conductive cloth 3 has powerful electromagnetic shield nature, can effectively resist outside electromagnetic radio frequency interference, and the barrier propterty to the cable transmission signal of telecommunication is good.
The cable protection structure comprises a metal layer 4 and an outer sheath 5, the metal layer 4 is arranged on the outer layer close to the conductive cloth 3, an aluminum material in the metal layer 4 has certain salt mist permeation prevention effect, the outer layer close to the metal layer 4 is provided with the outer sheath 5, the outer sheath 5 is made of a composite material, the outer sheath 5 comprises a YJV sheath 6 and PE flame-retardant master batches 7, the YJV sheath 6 is located on the outer layer close to the outer sheath 5, the YJV sheath 6 has excellent electrical performance and chemical corrosion resistance, so that the cable can guarantee power transmission for a long time, the service life is prolonged, in addition, the YJV sheath 6 also has the characteristics of simple structure and light weight, the laying and installation of the cable in a long range are facilitated, the PE flame-retardant master batches 7 are located on the inner layer close to the outer sheath 5, the PE flame-retardant master batches 7 have efficient flame-retardant performance, the spark spreading caused by cable current overload under an unexpected condition is prevented, the use safety of the cable is improved, and the protection benefit of the cable is greatly improved.
The conductive cloth 3 is made of a thin material formed by plating an extremely thin copper and nickel metal film layer on a chemical fiber cloth base, the electromagnetic shielding performance of the conductive cloth 3 can be greatly improved, the shielding range is 100K-3GHz, the YJV sheath 6 is made of cross-linked polyethylene insulated polyvinyl chloride, the material has higher rated temperature and insulating performance compared with the traditional PVC material, and has excellent electrical performance and acid-base chemical corrosion resistance, the service life of the cable can be effectively prolonged, the main component of the PE flame-retardant master batch 7 is polyethylene flame-retardant master batch, the polyethylene flame-retardant master batch is high-efficiency and environment-friendly additive flame-retardant master batch, the flame-retardant efficiency is high, the safety of the cable in use is effectively ensured, the YJV sheath 6 and the PE flame-retardant master batch 7 are connected in a bonding mode, the stability of an external protective layer of the cable can be effectively ensured, the material of the metal layer 4 is made of an aluminum-magnesium alloy layer with the tensile strength of 350-500 MPa, the tensile strength of the cable can be improved, the daily slight stretching and deformation of the cable can be used to prevent the internal structure from being damaged, the maximum external diameter of the cable is not more than 3.6mm, the maximum external diameter of the cable is controlled according to prevent the resistance law of the cable from being manufactured, and the cable, the insulation cost of the cable is low-resistance value of the outer sheath, and the insulation material has the characteristic of the insulation cost of the polyvinyl chloride insulation layer.
The working principle is as follows: during the use, under the salt spray environment, the YJV sheath 6 of oversheath 5 outer has excellent electrical property and chemical resistance, make this cable can guarantee power transmission for a long time, service life has been prolonged, in addition, YJV sheath 6 still has simple structure and light in weight's characteristics, be convenient for lay and install at long range cable, and the fire-retardant master batch 7 of PE that oversheath 5 inlayer adopted has the fire-retardant performance of efficient, the spark that cable current overload produced under the unexpected condition has been prevented from spreading, the security of cable use has been improved, make the protection benefit of cable improve greatly, under the electromagnetic radio frequency interference environment, the inside conductive fabric 3 that adopts of cable has powerful electromagnetic shielding nature, can effectively resist outside electromagnetic radio frequency interference, also have fine thinness simultaneously, the pliability, can satisfy the bending deformation when cable uses, be convenient for the storage and the transportation of cable, and convenient and the practicality is strong.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a salt fog prevention superhigh shielding radio frequency coaxial cable, includes many heart yearns (1), its characterized in that: the outer layer of the core wires (1) is provided with a shielding radio frequency structure and a cable protection structure;
the shielding radio frequency structure comprises conductive cloth (3), an insulating layer (2) is arranged on the outer layer close to the core wires (1), and the conductive cloth (3) is arranged on the outer layer close to the insulating layer (2);
the cable protection structure comprises a metal layer (4) and an outer sheath (5), wherein the metal layer (4) is arranged on the outer layer close to the conductive cloth (3), the outer layer close to the metal layer (4) is provided with the outer sheath (5), the outer sheath (5) comprises a YJV sheath (6) and PE flame-retardant master batches (7), the YJV sheath (6) is located on the outer layer of the outer sheath (5), and the PE flame-retardant master batches (7) are located on the inner layer of the outer sheath (5).
2. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the conductive cloth (3) is made of a thin material formed by plating an extremely thin copper and nickel metal film layer on a chemical fiber cloth base.
3. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the material of the YJV sheath (6) is cross-linked polyethylene insulating polyvinyl chloride.
4. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the main component of the PE flame-retardant master batch (7) is polyethylene flame-retardant master batch.
5. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the YJV sheath (6) and the PE flame-retardant master batch (7) adopt a bonding connection mode.
6. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the metal layer (4) is made of an aluminum magnesium alloy layer with the tensile strength of 350-500 MPa.
7. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the maximum outer diameter of the outer sheath (5) does not exceed 3.6mm.
8. The salt fog resistant ultra-high shielding radio frequency coaxial cable of claim 1, wherein: the insulating layer (2) is made of polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222028398.2U CN217848279U (en) | 2022-08-02 | 2022-08-02 | Salt fog prevention ultrahigh shielding radio frequency coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222028398.2U CN217848279U (en) | 2022-08-02 | 2022-08-02 | Salt fog prevention ultrahigh shielding radio frequency coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217848279U true CN217848279U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222028398.2U Active CN217848279U (en) | 2022-08-02 | 2022-08-02 | Salt fog prevention ultrahigh shielding radio frequency coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217848279U (en) |
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2022
- 2022-08-02 CN CN202222028398.2U patent/CN217848279U/en active Active
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