CN117476275A - Longitudinally-wrapped braided outer conductor type coaxial cable shielding structure and shielding method thereof - Google Patents
Longitudinally-wrapped braided outer conductor type coaxial cable shielding structure and shielding method thereof Download PDFInfo
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- CN117476275A CN117476275A CN202311689196.5A CN202311689196A CN117476275A CN 117476275 A CN117476275 A CN 117476275A CN 202311689196 A CN202311689196 A CN 202311689196A CN 117476275 A CN117476275 A CN 117476275A
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- 239000004020 conductor Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 41
- 239000002184 metal Substances 0.000 claims description 41
- 239000002131 composite material Substances 0.000 claims description 28
- 239000004033 plastic Substances 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 28
- 239000011888 foil Substances 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- -1 polypropylene Polymers 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 238000009954 braiding Methods 0.000 claims description 10
- 239000002905 metal composite material Substances 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 7
- 229920002313 fluoropolymer Polymers 0.000 claims description 5
- 229920001774 Perfluoroether Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 11
- 238000009941 weaving Methods 0.000 description 7
- 238000004049 embossing Methods 0.000 description 5
- 239000005030 aluminium foil Substances 0.000 description 4
- 150000004696 coordination complex Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/067—Insulating coaxial cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2606—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by braiding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
- H01B13/262—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping of an outer metallic screen
-
- 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
- H01B7/02—Disposition of insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a shielding structure of a longitudinally-wrapped braided outer conductor type coaxial cable and a shielding method thereof, wherein the shielding structure comprises an inner conductor, an insulating bush, a longitudinally-wrapped shielding layer, a braided shielding layer and a sheath, the insulating bush is wrapped on the outer surface of the inner conductor, the longitudinally-wrapped shielding layer is wrapped on the outer surface of the insulating bush, the braided shielding layer is wrapped on the outer surface of the longitudinally-wrapped shielding layer, the sheath is wrapped on the outer surface of the braided shielding layer, and the longitudinally-wrapped shielding layer and the braided shielding layer are provided with three shielding structures which are respectively a standard shielding structure, a three-shielding structure and a four-shielding structure. According to the shielding structure and the shielding method of the longitudinally-wrapped braided outer conductor type coaxial cable, disclosed by the invention, the insulation is continuously and concentrically extruded on the inner conductor by adopting a foaming structure, the insulation eccentricity is not more than 7%, the shielding of the outer conductor of the cable is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure, the structure is more diversified, and the shielding structure is suitable for different use scenes.
Description
Technical Field
The invention relates to the technical field of coaxial cables, in particular to a shielding structure of a longitudinally-wrapped braided outer conductor type coaxial cable and a shielding method thereof.
Background
The shielding structure of the longitudinally-wrapped braided outer conductor type coaxial cable is a supporting structure for shielding and protecting the cable, is suitable for transmitting signals in indoor occasions such as a cable television system, a security monitoring system and a mobile communication distributed antenna system, and is used for transmitting signals by using fluoroplastic foamed insulating longitudinally-wrapped braided outer conductor type radio frequency coaxial cable, and along with the continuous development of technology, the requirements of people on the manufacturing process of the longitudinally-wrapped braided outer conductor type coaxial cable shielding structure are higher and higher.
The existing longitudinally-wrapped braided outer conductor type coaxial cable shielding structure has certain defects when in use, firstly, when in use, the cable shielding structure is single, cannot be well adapted to more scenes, is high in manufacturing cost, is unfavorable for people to use, and also, when in use, the shielding effect cannot well meet the requirement, the situation of easy damage occurs, and certain adverse effects are brought to the use process of people.
Disclosure of Invention
The technical problems to be solved are as follows: aiming at the defects of the prior art, the invention provides a shielding structure of a longitudinally-wrapped braided outer conductor type coaxial cable and a shielding method thereof, wherein the insulation is continuously and concentrically extruded on an inner conductor by adopting a foaming structure, the insulation eccentricity is not more than 7%, the cable outer conductor shielding is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure, the structure is more diversified, the shielding structure is suitable for different use scenes, and the problems in the background art can be effectively solved.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a indulge and wrap and weave outer conductor type coaxial cable shielding structure, includes inner conductor, insulating bush, indulges and wraps shielding layer, braided shield layer and sheath, insulating bush cladding is including the surface of conductor, indulge and wrap the shielding layer cladding at the surface of insulating bush, braided shield layer cladding is at the surface of indulging and wrap the shielding layer, the sheath cladding is at the surface of braided shield layer, indulge and wrap shielding layer and braided shield layer and set up three kind of shielding structure, be standard shielding structure, three shielding structure and four shielding structure respectively.
As a preferable technical scheme of the application, in the standard shielding structure, the longitudinal wrapping shielding layer and the braiding shielding layer are both provided with a group, and the braiding shielding layer is wrapped on the surface of the longitudinal wrapping shielding layer.
As a preferable technical scheme of the application, in the three-shielding structure, the longitudinal wrapping shielding layers are provided with two groups, the weaving shielding layers are provided with one group, and the two groups of the longitudinal wrapping shielding layers are respectively arranged on the inner surface and the outer surface of the weaving shielding layers.
As a preferable technical scheme of the application, in the four-shielding structure, the longitudinal wrapping shielding layer and the weaving shielding layer are both provided with two groups, and the longitudinal wrapping shielding layer and the weaving shielding layer are overlapped.
As a preferable technical scheme of the application, the inner conductor, the insulating bush, the longitudinal wrapping shielding layer, the braiding shielding layer and the sheath are integrally formed through injection molding and hot pressing.
As a preferred technical scheme of this application, indulge the shielding layer and include polypropylene film, embossing copper strips membrane, aluminium foil, shielding film and PC membrane, the shielding film is located the surface of PC membrane, the aluminium foil is located the surface of shielding film, embossing copper strips membrane is located the surface of aluminium foil, the polypropylene film is located the surface of embossing copper strips membrane, through hot briquetting integrated into one piece between polypropylene film, embossing copper strips membrane, aluminium foil, shielding film and the PC membrane.
As a preferred technical scheme of this application, weave the shielding layer and include metal complex film, metal foil, netted braided membrane, plastic-aluminum complex film and braided metal wire, netted braided membrane is located the surface of plastic-aluminum complex film, the metal foil is located the surface of netted braided membrane, the metal complex film is located the surface of metal foil, braided metal wire is located the surface of metal complex film, through hot briquetting integrated into one piece between metal complex film, metal foil, netted braided membrane, plastic-aluminum complex film and the braided metal wire.
A shielding method of a longitudinally-wrapped braided outer conductor type coaxial cable comprises the following operation steps:
s1: inner conductor material: the inner conductor consists of one or more of solid copper wires, copper-clad aluminum wires and copper-clad steel wires;
s2: insulating material: the insulating material is one or more of poly (perfluoroethylene propylene), perfluoroalkoxy copolymer and fluoroplastic;
s3: inner conductor insulation: the insulation adopts a foaming structure, the insulation is continuously and concentrically extruded on the inner conductor, and the insulation eccentricity is not more than 7%;
s4: outer conductor shielding: the cable outer conductor shielding is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure;
s5: shielding structure: the standard shielding consists of an aluminum-plastic composite belt and a braided metal wire, the three-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire and an aluminum-plastic composite belt, and the four-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire, an aluminum-plastic composite belt and a braided metal wire.
The beneficial effects are that: compared with the prior art, the invention provides the shielding structure and the shielding method of the longitudinally-wrapped braided outer conductor type coaxial cable, which have the following beneficial effects: the shielding structure and the shielding method of the longitudinally-wrapped braided outer conductor type coaxial cable are characterized in that a foaming structure is adopted for insulation, insulation is continuously and concentrically extruded on an inner conductor, the insulation eccentricity is not more than 7%, the shielding of the cable outer conductor is divided into three structures including a standard shielding structure, a three-shielding structure and a four-shielding structure, the structure is more diversified, the shielding structure is suitable for different use scenes, the whole longitudinally-wrapped braided outer conductor type coaxial cable shielding structure is simple in structure and convenient to operate, and the use effect is better than that of the traditional method.
Drawings
Fig. 1 is a schematic diagram of a shielding structure of a coaxial cable of a longitudinally-wrapped braid outer conductor and a standard shielding structure of a shielding method thereof according to the present invention.
Fig. 2 is a schematic diagram of a shielding structure of a coaxial cable of a longitudinally-wrapped braid outer conductor and a three-shielding structure in a shielding method thereof according to the present invention.
Fig. 3 is a schematic diagram of a shielding structure of a coaxial cable of a longitudinally-wrapped braid outer conductor and a four-shielding structure in a shielding method thereof according to the present invention.
Fig. 4 is a schematic view of a shielding structure of a longitudinally-wrapped braided outer conductor type coaxial cable and a shielding method thereof according to the present invention.
Fig. 5 is a schematic view of a shielding structure of a coaxial cable with a longitudinally-wrapped braided outer conductor and a braided shielding layer in a shielding method thereof according to the present invention.
In the figure: 1. an inner conductor; 2. an insulating bush; 3. longitudinally wrapping the shielding layer; 4. braiding a shielding layer; 5. a sheath; 6. a polypropylene film; 7. embossing the copper strip film; 8. aluminum foil; 9. a shielding film; 10. a PC film; 11. a metal composite film; 12. a metal foil; 13. a mesh woven film; 14. an aluminum-plastic composite film; 15. and weaving the metal wire.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and detailed description, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present invention, and are intended to be illustrative of the present invention only and should not be construed as limiting the scope of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, a shielding structure of a longitudinally-wrapped braided outer conductor type coaxial cable comprises an inner conductor 1, an insulating bush 2, a longitudinally-wrapped shielding layer 3, a braided shielding layer 4 and a sheath 5, wherein the insulating bush 2 is wrapped on the outer surface of the inner conductor 1, the longitudinally-wrapped shielding layer 3 is wrapped on the outer surface of the insulating bush 2, the braided shielding layer 4 is wrapped on the outer surface of the longitudinally-wrapped shielding layer 3, the sheath 5 is wrapped on the outer surface of the braided shielding layer 4, three shielding structures are respectively a standard shielding structure, a three shielding structure and a four shielding structure, the insulation adopts a foaming structure, the insulation is continuously and concentrically extruded on the inner conductor, the insulation eccentricity is not more than 7%, and the structure is more diversified and is suitable for different use scenes.
Further, in the standard shielding structure, a group of longitudinal shielding layers 3 and a group of braided shielding layers 4 are arranged, and the braided shielding layers 4 are coated on the surface of the longitudinal shielding layers 3.
Further, in the three-shielding structure, two groups of longitudinal shielding layers 3 are arranged, one group of woven shielding layers 4 are arranged, and the two groups of longitudinal shielding layers 3 are respectively arranged on the inner surface and the outer surface of the woven shielding layers 4.
Further, in the four-shielding structure, two groups of longitudinal shielding layers 3 and the weaving shielding layers 4 are arranged, and the longitudinal shielding layers 3 and the weaving shielding layers 4 are overlapped.
Further, the inner conductor 1, the insulating bush 2, the longitudinal wrapping shielding layer 3, the woven shielding layer 4 and the sheath 5 are integrally formed through injection molding and hot pressing.
Further, the longitudinally-wrapped shielding layer 3 comprises a polypropylene film 6, an embossed copper strip film 7, an aluminum foil 8, a shielding film 9 and a PC film 10, wherein the shielding film 9 is positioned on the surface of the PC film 10, the aluminum foil 8 is positioned on the surface of the shielding film 9, the embossed copper strip film 7 is positioned on the surface of the aluminum foil 8, the polypropylene film 6 is positioned on the surface of the embossed copper strip film 7, and the polypropylene film 6, the embossed copper strip film 7, the aluminum foil 8, the shielding film 9 and the PC film 10 are integrally formed through hot pressing.
Further, the braided shielding layer 4 includes a metal composite film 11, a metal foil 12, a mesh braided film 13, an aluminum-plastic composite film 14 and a braided metal wire 15, the mesh braided film 13 is located on the surface of the aluminum-plastic composite film 14, the metal foil 12 is located on the surface of the mesh braided film 13, the metal composite film 11 is located on the surface of the metal foil 12, the braided metal wire 15 is located on the surface of the metal composite film 11, and the metal composite film 11, the metal foil 12, the mesh braided film 13, the aluminum-plastic composite film 14 and the braided metal wire 15 are integrally formed by hot pressing.
A shielding method of a longitudinally-wrapped braided outer conductor type coaxial cable comprises the following operation steps:
s1: inner conductor material: the inner conductor consists of one or more of solid copper wires, copper-clad aluminum wires and copper-clad steel wires;
s2: insulating material: the insulating material is one or more of poly (perfluoroethylene propylene), perfluoroalkoxy copolymer and fluoroplastic;
s3: inner conductor insulation: the insulation adopts a foaming structure, the insulation is continuously and concentrically extruded on the inner conductor, and the insulation eccentricity is not more than 7%;
s4: outer conductor shielding: the cable outer conductor shielding is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure;
s5: shielding structure: the standard shielding consists of an aluminum-plastic composite belt and a braided metal wire, the three-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire and an aluminum-plastic composite belt, and the four-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire, an aluminum-plastic composite belt and a braided metal wire.
Working principle: the invention comprises an inner conductor 1, an insulating bush 2, a longitudinally-wrapped shielding layer 3, a braided shielding layer 4, a sheath 5, a polypropylene film 6, an embossed copper belt film 7, an aluminum foil 8, a shielding film 9, a PC film 10, a metal composite film 11, a metal foil 12, a net-shaped braided film 13, an aluminum-plastic composite film 14 and a braided metal wire 15, wherein the inner conductor consists of one or more of solid copper wires, copper-clad aluminum wires and copper-clad steel wires; the insulating material is one or more of poly (perfluoroethylene propylene), perfluoroalkoxy copolymer and fluoroplastic; the insulation adopts a foaming structure, the insulation is continuously and concentrically extruded on the inner conductor, and the insulation eccentricity is not more than 7%; the cable outer conductor shielding is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure; the standard shielding consists of an aluminum-plastic composite belt and a braided metal wire, the three-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire and an aluminum-plastic composite belt, and the four-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire, an aluminum-plastic composite belt and a braided metal wire.
It should be noted that in this document, relational terms such as first and second (first and second), and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (8)
1. The utility model provides a indulge and wrap braided outer conductor type coaxial cable shielding structure, includes inner conductor (1), insulating bush (2), indulge wrap shielding layer (3), braided shield layer (4) and sheath (5), its characterized in that: the insulation lining (2) cladding is at the surface of inner conductor (1), indulge the surface of wrapping shielding layer (3) cladding at insulation lining (2), braided shield layer (4) cladding is at the surface of indulging wrapping shielding layer (3), sheath (5) cladding is at the surface of braided shield layer (4), indulge wrapping shielding layer (3) and braided shield layer (4) and set up three kind of shielding structure, be standard shielding structure, three shielding structure and four shielding structure respectively.
2. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: in the standard shielding structure, the longitudinal wrapping shielding layer (3) and the braiding shielding layer (4) are both provided with a group, and the braiding shielding layer (4) is wrapped on the surface of the longitudinal wrapping shielding layer (3).
3. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: in the three-shielding structure, the longitudinal wrapping shielding layers (3) are provided with two groups, the braiding shielding layers (4) are provided with one group, and the two groups of the longitudinal wrapping shielding layers (3) are respectively arranged on the inner surface and the outer surface of the braiding shielding layers (4).
4. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: in the four-shielding structure, the longitudinal wrapping shielding layer (3) and the braiding shielding layer (4) are respectively provided with two groups, and the longitudinal wrapping shielding layer (3) and the braiding shielding layer (4) are overlapped.
5. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: the inner conductor (1), the insulating bush (2), the longitudinal wrapping shielding layer (3), the woven shielding layer (4) and the sheath (5) are integrally formed through injection molding and hot pressing.
6. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: the longitudinal wrapping shielding layer (3) comprises a polypropylene film (6), an embossed copper strip film (7), an aluminum foil (8), a shielding film (9) and a PC film (10), wherein the shielding film (9) is located on the surface of the PC film (10), the aluminum foil (8) is located on the surface of the shielding film (9), the embossed copper strip film (7) is located on the surface of the aluminum foil (8), the polypropylene film (6) is located on the surface of the embossed copper strip film (7), and the polypropylene film (6), the embossed copper strip film (7), the aluminum foil (8), the shielding film (9) and the PC film (10) are integrally formed through hot pressing.
7. A longitudinally wrapped braided outer conductor type coaxial cable shield structure according to claim 1, wherein: the shielding layer (4) comprises a metal composite film (11), a metal foil (12), a net-shaped woven film (13), an aluminum-plastic composite film (14) and a woven metal wire (15), wherein the net-shaped woven film (13) is positioned on the surface of the aluminum-plastic composite film (14), the metal foil (12) is positioned on the surface of the net-shaped woven film (13), the metal composite film (11) is positioned on the surface of the metal foil (12), the woven metal wire (15) is positioned on the surface of the metal composite film (11), and the metal composite film (11), the metal foil (12), the net-shaped woven film (13), the aluminum-plastic composite film (14) and the woven metal wire (15) are integrally formed through hot pressing.
8. A shielding method of a longitudinally-wrapped braided outer conductor type coaxial cable is characterized by comprising the following steps of: the method comprises the following operation steps:
s1: inner conductor material: the inner conductor consists of one or more of solid copper wires, copper-clad aluminum wires and copper-clad steel wires;
s2: insulating material: the insulating material is one or more of poly (perfluoroethylene propylene), perfluoroalkoxy copolymer and fluoroplastic;
s3: inner conductor insulation: the insulation adopts a foaming structure, the insulation is continuously and concentrically extruded on the inner conductor, and the insulation eccentricity is not more than 7%;
s4: outer conductor shielding: the cable outer conductor shielding is divided into three structures, namely a standard shielding structure, a three-shielding structure and a four-shielding structure;
s5: shielding structure: the standard shielding consists of an aluminum-plastic composite belt and a braided metal wire, the three-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire and an aluminum-plastic composite belt, and the four-layer shielding consists of an aluminum-plastic composite belt, a braided metal wire, an aluminum-plastic composite belt and a braided metal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311689196.5A CN117476275A (en) | 2023-12-11 | 2023-12-11 | Longitudinally-wrapped braided outer conductor type coaxial cable shielding structure and shielding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311689196.5A CN117476275A (en) | 2023-12-11 | 2023-12-11 | Longitudinally-wrapped braided outer conductor type coaxial cable shielding structure and shielding method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117476275A true CN117476275A (en) | 2024-01-30 |
Family
ID=89633146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311689196.5A Pending CN117476275A (en) | 2023-12-11 | 2023-12-11 | Longitudinally-wrapped braided outer conductor type coaxial cable shielding structure and shielding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117476275A (en) |
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2023
- 2023-12-11 CN CN202311689196.5A patent/CN117476275A/en active Pending
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