CN204166939U - A kind of high-frequency low-consumption foamed coaxial cable - Google Patents
A kind of high-frequency low-consumption foamed coaxial cable Download PDFInfo
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- CN204166939U CN204166939U CN201420576748.1U CN201420576748U CN204166939U CN 204166939 U CN204166939 U CN 204166939U CN 201420576748 U CN201420576748 U CN 201420576748U CN 204166939 U CN204166939 U CN 204166939U
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Abstract
The utility model discloses a kind of high-frequency low-consumption foamed coaxial cable, by inner wire, coated in the conductor in adhesion coating, the physic foaming insulation layer be coated on interior adhesion coating, the first screen be woven on physic foaming insulation layer, be woven in secondary shielding layer on the first screen and the restrictive coating be coated on secondary shielding layer forms, also put up between described first screen and described secondary shielding layer and be surrounded with the 3rd screen; Also packed layer is provided with between described secondary shielding layer and described restrictive coating.The utility model is adopted to further increase the transmission frequency of foamed coaxial cable, transmission rate, shielding properties, flexibility, resistance to environmental suitability, waterproof and dampproof property and useful life, reduce the loss of cable simultaneously, make its transmission performance more stable, therefore be with a wide range of applications in fields such as mobile communication, microwave communication, radio broadcasting system, aviation and marine radar systems.
Description
Technical field
The utility model belongs to electric wire, relates to a kind of foamed coaxial cable, particularly a kind of high-frequency low-consumption foamed coaxial cable.This high-frequency low-consumption foamed coaxial cable is with a wide range of applications in fields such as mobile communication, microwave communication, radio broadcasting system, aviation and marine radar systems.It is the improvement of prior art.
Background technology
In prior art, foamed coaxial cable generally comprises: inner wire, coated interior adhesion coating in the conductor, the physic foaming insulation layer be coated on interior adhesion coating, vertical the first screen wrapped on physic foaming insulation layer, be woven in the secondary shielding layer on the first screen and be coated on the restrictive coating composition on secondary shielding layer; Described vertical the first screen wrapped on physic foaming insulation layer is aluminium foil layer; The described restrictive coating be coated on secondary shielding layer is polyvinyl chloride layer or polyethylene layer.The deficiency existed is: transmission frequency narrow (general work highest frequency scope is only 3GHz), transmission rate is low, loss is large, shielding properties not easily meets the demands, flexibility is poor, resistance to environmental suitability undesirable (particularly resistance to solar radiation, wear-resisting and pull resistance is poor), to block water and also poor in moisture resistance, causes the transmission quality of foamed coaxial cable and useful life to be subject to serious impact.
And along with the develop rapidly of science and technology, in some important occasions such as mobile communication, microwave communication, radio broadcasting system, aviation and marine radar systems, to the transmission performance of foamed coaxial cable with have higher requirement useful life, as transmission frequency need reach 10GHz, transmission rate is high, loss is little, shielding properties is high, good, the resistance to environmental suitability of flexibility is strong, long service life, transmission performance is more stable.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, provides a kind of transmission frequency wide (can reach 10GHz), the foamed coaxial cable that transmission rate is high, loss is little, shielding properties is high, strong, the waterproof and dampproof property of good, the resistance to environmental suitability of flexibility is splendid, long service life, transmission performance are more stable.
Content of the present utility model is: a kind of high-frequency low-consumption foamed coaxial cable, by inner wire (1), be coated on the interior adhesion coating (2) on inner wire (1), be coated on the physic foaming insulation layer (3) on interior adhesion coating (2), be woven in the first screen (4) on physic foaming insulation layer (3), be woven in the secondary shielding layer (6) on the first screen (4), and restrictive coating (8) composition be coated on secondary shielding layer (6), it is characterized in that: also put up between described first screen (4) and described secondary shielding layer (6) and be surrounded with the 3rd screen (5), packed layer (7) is also provided with between described secondary shielding layer (6) and described restrictive coating (8).
In content of the present utility model: described first screen (4) is preferably silver-plated flat type copper wire braid.
In content of the present utility model: described 3rd screen (5) is preferably aluminium-plastic tape screen, described aluminium-plastic tape screen is made up of aluminum base layer and the plastic layer that covers aluminum base layer outer surface;
In content of the present utility model: described packed layer (7) is preferably ointment packed layer.
In content of the present utility model: described restrictive coating (8) is preferably flame resistance polyurethane elastomer sheathing layer, adopt flame resistance polyurethane elastomer to extrude and make.
In content of the present utility model: the silver thickness for the silver-plated flat type copper wire weaving silver-plated flat type copper wire braid in described first screen (4) is not less than 1 μm.
In content of the present utility model: in described aluminium-plastic tape screen, the thickness of aluminum base layer is not less than 15 μm.
Compared with prior art, the beneficial effects of the utility model are: what (1) adopted due to the first screen is silver-plated flat type copper wire braid, also put up between the first screen and secondary shielding layer simultaneously and be surrounded with the 3rd screen (that is: aluminium-plastic tape screen), therefore further increase the shielding of cable, antijamming capability and reduce the loss of cable, make cable transmission frequency range to reach 10GHz simultaneously, ensure that the high frequency performance of cable;
(2) owing to being also provided with an ointment packed layer being woven between secondary shielding layer and restrictive coating, therefore further increase cable waterproof, moistureproof ability and shielding, further increase the useful life of cable simultaneously, guarantee the reliability of cable at severe environmental conditions transmission quality;
(3) what adopt due to restrictive coating is that flame resistance polyurethane elastomer extrudes the flame resistance polyurethane elastomer sheathing layer made, therefore further increases the resistance to environmental suitability (particularly resistance to solar radiation, fire-retardant, wear-resisting) of cable, tensile strength and flexibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cross section structure schematic diagram of Fig. 1.
In figure: 1-inner wire, 2-interior adhesion coating, 3-physic foaming insulation layer, the 4-the first screen, the 5-the three screen, 6-secondary shielding layer, 7-packed layer, 8-restrictive coating.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, see each accompanying drawing.
A kind of high-frequency low-consumption foamed coaxial cable, a kind of high-frequency low-consumption foamed coaxial cable, by inner wire 1, be coated on adhesion coating 2 on inner wire 1, the physic foaming insulation layer 3 be coated on interior adhesion coating 2, the first screen 4 be woven on physic foaming insulation layer 3, be woven in the secondary shielding layer 6 on the first screen 4 and the restrictive coating 8 be coated on secondary shielding layer 6 forms, also put up between described first screen 4 and described secondary shielding layer 6 and be surrounded with the 3rd screen 5; Packed layer 7 is also provided with between described secondary shielding layer 6 and described restrictive coating 8.
Described first screen 4 is silver-plated flat type copper wire braids, for weaving the silver thickness 2 μm of the silver-plated flat type copper wire of silver-plated flat type copper wire braid.
Described 3rd screen 5 is aluminium-plastic tape screens, and aluminium-plastic tape screen is made up of aluminum base layer and the plastic layer that covers aluminum base layer outer surface; In aluminium-plastic tape screen, the thickness of aluminum base layer is 15 μm (or 20 μm).
Described packed layer 7 is ointment packed layers.
Described restrictive coating 8 is flame resistance polyurethane elastomer sheathing layers, adopts flame resistance polyurethane elastomer to extrude and makes.
Described inner wire 1 is single annealed copper wire or single copper cover aluminum of being processed by cladding process.
Described interior adhesion coating 2 is polyethylene layers.
Described insulating barrier 3 is polyethylene foamed layers.
Described secondary shielding layer 6 is tinned wird braids.
Described packed layer 7 is ointment packed layers.
The production process of the present embodiment high-frequency low-consumption foamed coaxial cable: (1) selects standard compliant single annealed copper wire or single copper cover aluminum of being processed by cladding process as inner wire 1; (2) outside inner wire 1, adopt polythene material through physical foaming technology, adopt tandem extruder to extrude processing, simultaneously obtained interior adhesion coating 2 and physic foaming insulation layer 3; (3) physic foaming insulation layer 3 outer adopt Combined Machining Technology and high-velocity wire braiding machine to carry out silver-plated flat type copper wire braid braiding, to adopt outward at silver-plated flat type copper wire braid and put up wrapped processing mode to carry out aluminium-plastic tape screen wrapped and then outside aluminium-plastic tape screen, carry out the braiding of tin-plating round copper wire braid, form three layers of screen (i.e. the first screen 4, secondary shielding layer 6 and the 3rd screen 5); (4) adopt gel filling device to be coated in outside secondary shielding layer uniformly by the ointment of thawing outward at secondary shielding layer, obtained ointment packed layer 7, then adopt extrusion molding processing technology and equipment to extrude flame resistance polyurethane elastomer and form restrictive coating 8.
Claims (7)
1. a high-frequency low-consumption foamed coaxial cable, by inner wire (1), the interior adhesion coating (2) be coated on inner wire (1), the physic foaming insulation layer (3) be coated on interior adhesion coating (2), the first screen (4) be woven on physic foaming insulation layer (3), be woven in the secondary shielding layer (6) on the first screen (4) and the restrictive coating (8) be coated on secondary shielding layer (6) forms, it is characterized in that: also put up between described first screen (4) and described secondary shielding layer (6) and be surrounded with the 3rd screen (5); Packed layer (7) is also provided with between described secondary shielding layer (6) and described restrictive coating (8).
2. a kind of high-frequency low-consumption foamed coaxial cable according to claim 1, is characterized in that: described first screen (4) is silver-plated flat type copper wire braid.
3. a kind of high-frequency low-consumption foamed coaxial cable according to claim 1, it is characterized in that: described 3rd screen (5) is aluminium-plastic tape screen, described aluminium-plastic tape screen is made up of aluminum base layer and the plastic layer that covers aluminum base layer outer surface.
4. a kind of high-frequency low-consumption foamed coaxial cable according to claim 1, is characterized in that: described packed layer (7) is ointment packed layer.
5. a kind of high-frequency low-consumption foamed coaxial cable according to claim 1, is characterized in that: described restrictive coating (8) is flame resistance polyurethane elastomer sheathing layer.
6. a kind of high-frequency low-consumption foamed coaxial cable according to claim 2, is characterized in that: the silver thickness for the silver-plated flat type copper wire weaving silver-plated flat type copper wire braid in described first screen (4) is not less than 1 μm.
7. a kind of high-frequency low-consumption foamed coaxial cable according to claim 3, is characterized in that: in described aluminium-plastic tape screen, the thickness of aluminum base layer is not less than 15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576748.1U CN204166939U (en) | 2014-10-08 | 2014-10-08 | A kind of high-frequency low-consumption foamed coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576748.1U CN204166939U (en) | 2014-10-08 | 2014-10-08 | A kind of high-frequency low-consumption foamed coaxial cable |
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| Publication Number | Publication Date |
|---|---|
| CN204166939U true CN204166939U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420576748.1U Active CN204166939U (en) | 2014-10-08 | 2014-10-08 | A kind of high-frequency low-consumption foamed coaxial cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680685A (en) * | 2013-12-20 | 2014-03-26 | 浙江南网电气有限公司 | Dry overall shield insulating tubular bus |
| CN110164602A (en) * | 2019-05-31 | 2019-08-23 | 芜湖航天特种电缆厂股份有限公司 | A kind of high pressure resistant low-impedance cable and preparation method thereof |
-
2014
- 2014-10-08 CN CN201420576748.1U patent/CN204166939U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680685A (en) * | 2013-12-20 | 2014-03-26 | 浙江南网电气有限公司 | Dry overall shield insulating tubular bus |
| CN103680685B (en) * | 2013-12-20 | 2016-08-17 | 浙江南网电气有限公司 | Dry type full-shield insulative tubular bus |
| CN110164602A (en) * | 2019-05-31 | 2019-08-23 | 芜湖航天特种电缆厂股份有限公司 | A kind of high pressure resistant low-impedance cable and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |