CN215450951U - High-speed communication cable - Google Patents
High-speed communication cable Download PDFInfo
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- CN215450951U CN215450951U CN202121500655.7U CN202121500655U CN215450951U CN 215450951 U CN215450951 U CN 215450951U CN 202121500655 U CN202121500655 U CN 202121500655U CN 215450951 U CN215450951 U CN 215450951U
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Abstract
The utility model discloses a high-speed communication cable which comprises a conductive core and an insulating protective sleeve, wherein an aluminum foil shielding layer and a wrapping protective layer which are longitudinally wrapped are arranged on the periphery of the conductive core, an aluminum foil shielding tape comprises an aluminum foil layer and a PET (polyethylene terephthalate) layer which are compounded into a whole, a hot melt adhesive dot matrix coated is arranged on one side of the aluminum foil layer, which faces the conductive core, the wrapping protective layer comprises the wrapping PET layer, a wrapping adhesive layer is arranged on one side of the wrapping PET layer, which faces the insulating protective sleeve, and no adhesive butt is formed between the wrapping PET layer and the aluminum foil shielding layer. The utility model adopts the design of matching the longitudinal aluminum foil shielding layer with the wrapping protective layer, thereby improving the structural stability of the cable and ensuring the conduction and the matching of the cable to be safer and more reliable. Can satisfy the relative tensioning cooperation demand of heat effect, reduce cable deformation volume, extension cable effective service life. The hot melt adhesive dot matrix with matrix coating is provided, so that the aluminum foil shielding layer and the conductive core are bonded reliably, and the expansion and shrinkage space during thermal effect is provided, so that the cable is protected from deformation due to better thermal effect.
Description
Technical Field
The utility model relates to a high-speed communication cable, and belongs to the technical field of cables.
Background
Shielded electrical wires are communication cables that transmit telephone, telegraph, facsimile documents, television and radio programs, data and other electrical signals. Is formed by twisting more than one pair of mutually insulated wires. Compared with an overhead open wire, the communication cable has the advantages of large communication capacity, high transmission stability, good confidentiality, less influence of natural conditions and external interference and the like.
The traditional shielding electric wire comprises an insulation core, a braided shielding net layer surrounding the insulation core and a peripheral insulation protective layer, wherein the braided shielding net layer needs to be dipped with tin and copper, the cost is high, the wire diameter specification is large, and the manufacturing process is complex.
In view of the above situation, a shielding electric wire using a shielding film instead of a conventional braided shielding mesh layer has appeared in the prior art, which can reduce the cost and diameter of the electric wire and improve the shielding effect.
My department has proposed the chinese utility model patent of application date 2020230710994, and it has disclosed the shielded wire who possesses shielding aluminium foil complex film, and this electric wire includes electrically conductive core and insulating protective sheath, exists aluminium foil shielding area between electrically conductive core and the insulating protective sheath, and this aluminium foil shielding area adopts PET layer and aluminium foil layer looks complex structure. The aluminum foil layer is mainly used for shielding, and the PET layer is mainly used for wrapping structures and insulation.
This type of cable can have the on-state cooperation of free end in the use, the free end generally cooperates through connector seat or communication joining end, need get rid of the peripheral insulating protective layer of cable free end, and the aluminium foil shielding area is for indulging the package or around the package structure, there is exposed rim in the parcel, this rim has the superimposed aluminium foil condition of exposing, influence shielding effect and insulating effect, in addition, traditional cable adopts singly to wind aluminium foil shielding band structure, the aluminium foil shielding area of singly winding the structure produces deformation and damage easily in the local heat effect of cable circular telegram.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides a high-speed communication cable aiming at the problems that an aluminum foil shielding belt of a traditional cable single-winding structure is exposed and is easy to cause local thermal effect damage.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the high-speed communication cable comprises a conductive core and an insulating protective sleeve, wherein an aluminum foil shielding layer longitudinally wrapped by an aluminum foil shielding tape is arranged on the periphery of the conductive core, a wrapping protective layer wrapped on the periphery of the aluminum foil shielding layer is arranged between the aluminum foil shielding layer and the insulating protective sleeve,
the aluminum foil shielding tape comprises an aluminum foil layer and a PET layer which are compounded into a whole, one side of the aluminum foil layer facing the conductive core is provided with a hot melt adhesive dot matrix coated in a matrix manner, one side of the aluminum foil layer is adhered with the conductive core into a whole,
the package protective layer is including wrapping the PET layer around the package, wrap the PET layer orientation one side of insulating protective sheath is equipped with around the package bond line, wrap the PET layer with be for not having the adhesion butt between the aluminium foil shielding layer.
Preferably, the lapped PET layer comprises a composite lapped PET layer formed by compounding two layers of PET films.
Preferably, the hot melt adhesive dot matrix is a polyamide resin based hot melt adhesive dot matrix.
Preferably, the total area of the lattice area of the hot melt adhesive lattice is 1/2-4/5 of the area of the aluminum foil layer.
Preferably, the adhesive layer between the aluminum foil layer and the PET layer is a polyamide resin-based hot melt adhesive layer.
Preferably, the bonding layer between the two PET films of the wrapping PET layer is a polyamide resin-based hot melt adhesive layer.
Preferably, the conductive core is a three-core conductive core having a ground wire and two conductive wires, and an insulating protective sheath layer is disposed on the periphery of the conductive wires.
The utility model has the following beneficial effects:
1. adopt indulge package aluminium foil shielding layer and around package protective layer cooperation design, satisfy the insulation protection and the tight real demand of package to aluminium foil shielding layer, improved cable structural stability, the cable switches on to join in marriage more safe and reliable.
2. Through indulging the packet aluminium foil shielding layer and wrapping the non-cohesive cooperation between the protective layer, can satisfy the relative tensioning cooperation demand of fuel effect, reduce the cable deformation volume, extension cable effective life.
3. The hot melt adhesive dot matrix with matrix coating is provided, so that the aluminum foil shielding layer and the conductive core are bonded reliably, and the expansion and shrinkage space during thermal effect is provided, so that the cable is protected from deformation due to better thermal effect.
Drawings
Fig. 1 is a schematic structural diagram of a high-speed communication cable according to the present invention.
Fig. 2 is a schematic view of the layered structure of the aluminum foil shielding layer in the present invention.
Fig. 3 is a schematic view of the layered structure of the wrapping protective layer of the present invention.
Detailed Description
The utility model provides a high-speed communication cable. 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.
High-speed communication cable, as shown in fig. 1 to 3, including electrically conductive core 1 and insulating protective sheath 2, the periphery of electrically conductive core 1 is equipped with the aluminium foil shielding layer 3 of indulging the package by the aluminium foil shielding area, is equipped with around the package protective layer 4 around the package in 3 peripheries of aluminium foil shielding layer between aluminium foil shielding layer 3 and insulating protective sheath 2.
The aluminum foil shielding tape comprises an aluminum foil layer 5 and a PET layer 6 which are combined into a whole, wherein a matrix type coated hot melt adhesive dot matrix 7 is arranged on one side of the aluminum foil layer 5 facing the conductive core 1, and the aluminum foil layer 5 is bonded with the conductive core 1 into a whole.
Wrapping protective layer 4 is equipped with around package bond line 9 towards one side of insulating protective sheath 2 including wrapping PET layer 8 around package PET layer 4, for not having the butt between package PET layer 8 and the aluminium foil shielding layer 3.
The specific implementation process and principle description are as follows:
referring to fig. 1, the aluminum foil shielding layer 3 adopts a longitudinal wrapping structure, that is, the aluminum foil shielding tape is aligned and extended along the axial direction of the conductive core 1, then the aluminum foil shielding tape is flanged at two sides, overlapped, adhered and wrapped, the hot melt adhesive dot matrix 7 on the aluminum foil layer 5 is adhered to the conductive core 1, and the hot melt adhesive dot matrix 7 at the overlapped part is overlapped and adhered to the PET layer 6. At this time, a core material wrapping structure of the conductive core 1 and the aluminum foil shielding layer 3 is formed.
Then, will wrap protective layer 4 and carry out on aluminium foil shielding layer 3 around the package, and the spiral winding is promptly wrapped around the package, and the package bond line 9 of wrapping the protective layer during the winding is outside, through realizing the bonding between the package bond line that wraps the coincide position and the package PET layer 8 around the package bond line 9, forms around package protective layer 4.
And finally, performing extrusion outer protection molding on the insulating protective sleeve 2 on the wrapping protective layer 4 to form the insulating protective sleeve.
The shielding protection to electrically conductive core 1 can be realized to aluminium foil shielding layer 3 through indulging the package to its hot melt adhesive dot matrix 7 can provide more reliable adhesive force, when electrically conductive core 1 local thermal effect appears, this hot melt adhesive dot matrix 7 can form the multipoint formula connection effect, prevent to appear the circumference deflection of 3 relative electrically conductive cores of aluminium foil shielding layer 1, and, hot melt adhesive dot matrix 7 possesses the clearance between glue and the glue point, can eliminate certain ground heat and rise the deformation, prevent that 3 damages of aluminium foil shielding layer from appearing.
And can provide the package protection around to aluminium foil shielding layer 3 around package protective layer 4, utilize PET's tensile toughness to carry out the tight package to aluminium foil shielding layer 3, can improve the structural stability of cable, when local thermal effect appears, can provide certain radial deformation power around package protective layer 4 to provide the shrink effect after deformation recovers, possess deformation toughness very reliably.
For not gluing the butt around wrapping between PET layer 8 and the aluminium foil shielding layer 3, do not have the cementing layer, the thermal effect in-process appears promptly, aluminium foil shielding layer 3 with around there is the difference deformation characteristic of covering protective layer 4, there is the interact between the non-sticking butt face, so can play the protection more excellently to aluminium foil shielding layer 3 around covering protective layer 4.
In addition, need destroy insulating protective sheath 2 when cable joint connects, can carry out insulation protection to aluminium foil shielding layer 3 around package protective layer 4 this moment.
In one embodiment, the hot melt adhesive lattices are polyamide resin based hot melt adhesive lattices, which have high temperature resistance, very stable adhesion after heat curing, and certain leveling properties.
The total area of the dot matrix area of the hot melt adhesive dot matrix is 1/2-4/5 of the area of the aluminum foil layer. Can provide a certain leveling gap while satisfying the strength requirement of the bonding structure.
In one particular embodiment, the taped PET layer 8 comprises a composite taped PET layer formed by laminating two layers of PET film. Adopt double-deck PET membrane complex promptly, can improve the protection characteristic around package PET layer, simultaneously, two-layer PET membrane can provide the differentiation ground around rolling up pressure for the cable is more compact reliable around the package.
The adhesive layer between the aluminum foil layer and the PET layer is a polyamide resin-based hot melt adhesive layer. And the adhesive layer between the two PET films wrapping the PET layer is a polyamide resin-based hot melt adhesive layer.
The homogeneous polyamide resin-based hot melt adhesive is adopted to form the adhesive layer and the hot melt adhesive dot matrix, when the high-speed communication cable has thermal effect, the composite layers are heated uniformly, the flow variables of the adhesives are similar, and the overall deformation of the cable is controllable and stable.
In one embodiment, the conductive core 1 is a three-core conductive core provided with a ground line and two conductive lines, and the outer peripheries of the conductive lines are provided with insulating protective covers 10.
The outer surface of hot melt adhesive dot matrix 7 and insulating protection jacket layer 10 and the surface of earth connection bond promptly, and the vertical package through aluminium foil shielding layer 3 carries out the parcel design of three-core conductive core, and the rethread is tightened up around the package of wrapping protective layer 4 and is made the cable form regular and compact.
Through the above description, the high-speed communication cable disclosed by the utility model has the advantages that the design that the longitudinal aluminum foil shielding layer is matched with the wrapping protective layer is adopted, the requirements of insulation protection and tight wrapping of the aluminum foil shielding layer are met, the structural stability of the cable is improved, and the cable is more safe and reliable in conduction and matching. Through indulging the packet aluminium foil shielding layer and wrapping the non-cohesive cooperation between the protective layer, can satisfy the relative tensioning cooperation demand of fuel effect, reduce the cable deformation volume, extension cable effective life. The hot melt adhesive dot matrix with matrix coating is provided, so that the aluminum foil shielding layer and the conductive core are bonded reliably, and the expansion and shrinkage space during thermal effect is provided, so that the cable is protected from deformation due to better thermal effect.
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 (7)
1. High-speed communication cable, including electrically conductive core and insulating protective sheath, its characterized in that:
an aluminum foil shielding layer longitudinally wrapped by an aluminum foil shielding tape is arranged on the periphery of the conductive core, a wrapping protective layer wrapped on the periphery of the aluminum foil shielding layer is arranged between the aluminum foil shielding layer and the insulating protective sleeve,
the aluminum foil shielding tape comprises an aluminum foil layer and a PET layer which are compounded into a whole, one side of the aluminum foil layer facing the conductive core is provided with a hot melt adhesive dot matrix coated in a matrix manner, one side of the aluminum foil layer is adhered with the conductive core into a whole,
the protective layer is including wrapping the PET layer around the package, wrap the PET layer orientation one side of insulating protective sheath is equipped with around the package bond line, wrap the PET layer with be for not having the butt between the PET layer.
2. The high-speed communication cable according to claim 1, wherein:
the lapped PET layer comprises a composite lapped PET layer formed by compounding two PET films.
3. The high-speed communication cable according to claim 1, wherein:
the hot melt adhesive dot matrix is a polyamide resin matrix hot melt adhesive dot matrix.
4. The high-speed communication cable according to claim 3, wherein:
the total area of the lattice area of the hot melt adhesive lattice is 1/2-4/5 of the area of the aluminum foil layer.
5. The high-speed communication cable according to claim 1, wherein:
the adhesive layer between the aluminum foil layer and the PET layer is a polyamide resin-based hot melt adhesive layer.
6. The high-speed communication cable according to claim 2, wherein:
and the bonding layer between the two PET films of the wrapping PET layer is a polyamide resin-based hot melt adhesive bonding layer.
7. The high-speed communication cable according to claim 1, wherein:
the conductive core is a three-core conductive core with a grounding wire and two conducting wires, and an insulating protective sleeve layer is arranged on the periphery of each conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121500655.7U CN215450951U (en) | 2021-07-02 | 2021-07-02 | High-speed communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121500655.7U CN215450951U (en) | 2021-07-02 | 2021-07-02 | High-speed communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215450951U true CN215450951U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121500655.7U Active CN215450951U (en) | 2021-07-02 | 2021-07-02 | High-speed communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215450951U (en) |
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2021
- 2021-07-02 CN CN202121500655.7U patent/CN215450951U/en active Active
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