CN111029017A - Shielded cable with wound copper foil layer - Google Patents
Shielded cable with wound copper foil layer Download PDFInfo
- Publication number
- CN111029017A CN111029017A CN201911423151.7A CN201911423151A CN111029017A CN 111029017 A CN111029017 A CN 111029017A CN 201911423151 A CN201911423151 A CN 201911423151A CN 111029017 A CN111029017 A CN 111029017A
- Authority
- CN
- China
- Prior art keywords
- copper foil
- rolled copper
- wound
- periphery
- shielded cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Insulated Conductors (AREA)
Abstract
The invention discloses a shielded cable with a wound copper foil layer, which comprises a PTFE (polytetrafluoroethylene) core wire with a plurality of guide cores inside, wherein a rolled copper foil tape is seamlessly wound on the periphery of the PTFE core wire, a protective agent curing sleeve is arranged on the periphery of the rolled copper foil tape, and a PVC (polyvinyl chloride) protective sleeve is arranged on the periphery of the protective agent curing sleeve. According to the invention, the traditional tin-impregnated copper metal braided sleeve is replaced by the rolled copper foil tape, so that the cost of the shielded cable is effectively reduced, and the shielding performance of the shielded cable is ensured. The design of the specific protective agent curing sleeve is adopted, the wound and rolled copper foil tape can be cured, the stability requirement of the wound and rolled copper foil tape in a cable is met, meanwhile, the cable also has the characteristics of high temperature resistance, corrosion resistance and the like, and the service life is prolonged. The rolled copper foil belt adopts a winding single-side bonding mode, the structural stability of the shielding layer is further improved, certain fatigue resistance is achieved, in addition, a shielding closed loop is formed by the copper foils in a butt joint mode, and the shielding performance is obvious.
Description
Technical Field
The invention relates to a shielded cable with a wound copper foil layer, and belongs to the technical field of shielded cables.
Background
The advent of 5G networks has had a significant impact on critical components, particularly connectors and cables used in wireless and wired infrastructures. Recently, the united states and the united kingdom have announced an acceleration in 5G network development, which has injected energy into the entire network industry. Today, western economies are trying to compete with the 5G technology that was intensively introduced in china.
However, achieving this leap on a large scale will depend on the adoption of new cable technology. Worldwide, copper-based mobile backhaul architectures are being upgraded to packet transmission over fiber architectures. Optical cables can transmit higher bandwidths and are therefore indispensable configurations for the processing speed of future 5G network products. Small base stations, new equipment and products, etc. that match 5G networks must be able to handle higher speeds and densities while reducing delays, consuming less energy, generating less heat, etc. Among them, the shielding performance of the cable is very strict.
Traditionally, communication shielded cable adopts PTFE heart yearn and PVC protective sheath, has designed the metal braid cover between PTFE heart yearn and PVC protective sheath, and the metal braid cover adopts the tin copper that soaks to handle, and this shielded cable's cost is higher, and shielding nature is relatively poor, and the diameter is also great, is unfavorable for cable laying.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a shielding cable with a wound copper foil layer aiming at the problems of high production cost and poor shielding property of the traditional shielding cable.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the shielding cable who possesses coiling copper foil layer possesses a plurality of PTFE heart yearns of leading the core including inside, the seamless winding of periphery of PTFE heart yearn has calendering copper foil tape, the periphery of calendering copper foil tape is equipped with protective agent solidification cover, the periphery of protective agent solidification cover is equipped with the PVC protective sheath.
Preferably, the winding surface of the rolled copper foil strip is provided with a single-side arranged hot melt adhesive tape, and in a seamless winding state, an overlapping part is arranged between the adjacent rolled copper foil strips,
the copper foil main body adjacent to the rolled copper foil strip in the overlapping part is provided with a continuous and abutted conduction part.
The invention has the following beneficial effects:
1. the traditional tin-impregnated copper metal braided sleeve is replaced by the rolled copper foil tape, so that the cost of the shielded cable is effectively reduced, and the shielding performance of the shielded cable is guaranteed.
2. The design of the specific protective agent curing sleeve is adopted, the wound and rolled copper foil tape can be cured, the stability requirement of the wound and rolled copper foil tape in a cable is met, meanwhile, the cable also has the characteristics of high temperature resistance, corrosion resistance and the like, and the service life is prolonged.
3. The rolled copper foil belt adopts a winding single-side bonding mode, the structural stability of the shielding layer is further improved, certain fatigue resistance is achieved, in addition, a shielding closed loop is formed by the copper foils in a butt joint mode, and the shielding performance is obvious.
Drawings
Fig. 1 is a schematic structural view of a shielded cable with a wound copper foil layer according to the present invention.
Fig. 2 is a schematic cross-sectional view of a shielded cable with a wound copper foil layer according to the present invention.
Detailed Description
The invention provides a shielded cable with a wound copper foil layer. The technical solution of the present invention is described in detail below with reference to the accompanying drawings so that it can be more easily understood and appreciated.
Possess the shielded cable of coiling copper foil layer, as shown in fig. 1 and fig. 2, including inside PTFE heart yearn 2 that possesses a plurality of core 1 of leading, the seamless winding of the periphery of PTFE heart yearn 2 has calendering copper foil tape 3, and the periphery of calendering copper foil tape 3 is equipped with protectant solidification cover 4, and the periphery of protectant solidification cover 4 is equipped with PVC protective sheath 5.
The specific implementation process and principle description are as follows:
the PTFE core wire 2 is formed by extrusion, that is, the PTFE material is extruded and wrapped on the guide core 1 to form the PTFE core wire 2.
In the present case, adopt calendering copper foil area 3 to replace traditional immersion tin copper metal woven cover, adopt seamless winding's mode to carry out the shaping on shielding jacket layer, possess the cost advantage, and in calendering copper foil area 3 coiling process, can carry out the shaping of protective agent solidification cover 4, specifically, in the coiling process, carry out the protective agent spraying to the coiling completion section, and form protective agent solidification cover 4 through the thermosetting, thereby satisfy the design demand after the coiling of calendering copper foil area 3 to the coiling. Finally, the PVC protective sleeve 5 is extruded and wrapped to form.
The protective agent used in the protective agent curing sleeve 4 in the present application is a mixed adhesive agent of a resin material and an acrylic acid material, and has high temperature resistance and corrosion resistance, and the protective agent is commonly used for manufacturing a copper foil shielding film.
In a preferred embodiment, the protective agent curing sleeve 4 is conductive colloid, i.e. conductive medium such as graphite powder is added in the protective agent to assist in interfering signal transmission. The protective agent curing sleeve 4 has certain high temperature resistance.
In one embodiment, as shown in fig. 2, the rolled copper foil strips have one-side hot-melt adhesive tape 6 on the winding surface, and in the seamless winding state, the adjacent rolled copper foil strips have an overlapping portion, and the copper foil bodies of the adjacent rolled copper foil strips in the overlapping portion have continuous and abutting conduction portions 7.
Specifically, the hot-melt adhesive tape 6 may be an FEP adhesive material, and mainly serves as an auxiliary hot-bonding between the copper foils in the overlapping portion, and the conduction portion 7 where the copper foils contact each other is provided in the overlapping portion, so that the design can satisfy the winding sealing performance of the copper foils, has no gaps such as creepage, realizes the sealing of interference signals, and has very excellent shielding performance.
Through the above description, it can be found that the shielding cable provided by the invention has the copper foil layer winding function, and the traditional tin-impregnated copper metal braided sleeve is replaced by the rolled copper foil tape, so that the cost of the shielding cable is effectively reduced, and meanwhile, the shielding performance of the shielding cable is ensured. The design of the specific protective agent curing sleeve is adopted, the wound and rolled copper foil tape can be cured, the stability requirement of the wound and rolled copper foil tape in a cable is met, meanwhile, the cable also has the characteristics of high temperature resistance, corrosion resistance and the like, and the service life is prolonged. The rolled copper foil belt adopts a winding single-side bonding mode, the structural stability of the shielding layer is further improved, certain fatigue resistance is achieved, in addition, a shielding closed loop is formed by the copper foils in a butt joint mode, and the shielding performance is obvious.
The technical solutions of the present invention are fully described above, it should be noted that the specific embodiments of the present invention are not limited by the above description, and all technical solutions formed by equivalent or equivalent changes in structure, method, or function according to the spirit of the present invention by those skilled in the art are within the scope of the present invention.
Claims (2)
1. Possess the shielded cable of coiling copper foil layer, its characterized in that:
including the inside PTFE heart yearn that possesses a plurality of core of leading, the seamless winding in periphery of PTFE heart yearn has calendering copper foil tape, the periphery of calendering copper foil tape is equipped with protective agent solidification cover, protective agent solidification cover's periphery is equipped with the PVC protective sheath.
2. The shielded cable with a wound copper foil layer as claimed in claim 1, wherein:
the winding surface of the rolled copper foil strip is provided with a single-side arranged hot melting type adhesive tape, and a superposition part is arranged between the adjacent rolled copper foil strips in a seamless winding state,
the copper foil main body adjacent to the rolled copper foil strip in the overlapping part is provided with a continuous and abutted conduction part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911423151.7A CN111029017A (en) | 2019-12-31 | 2019-12-31 | Shielded cable with wound copper foil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911423151.7A CN111029017A (en) | 2019-12-31 | 2019-12-31 | Shielded cable with wound copper foil layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111029017A true CN111029017A (en) | 2020-04-17 |
Family
ID=70201891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911423151.7A Pending CN111029017A (en) | 2019-12-31 | 2019-12-31 | Shielded cable with wound copper foil layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111029017A (en) |
-
2019
- 2019-12-31 CN CN201911423151.7A patent/CN111029017A/en active Pending
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