CN204516876U - The steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height - Google Patents
The steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height Download PDFInfo
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- CN204516876U CN204516876U CN201520124926.1U CN201520124926U CN204516876U CN 204516876 U CN204516876 U CN 204516876U CN 201520124926 U CN201520124926 U CN 201520124926U CN 204516876 U CN204516876 U CN 204516876U
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- frequency coaxial
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Abstract
The utility model is the steady phase radio frequency coaxial-cable of a kind of mechanical fixed ampllitude of super soft height; it comprises by the stranded center conductor of inner outwards design successively, dielectric layer, the internal shield being wrapped in described dielectric layer periphery, outer shielding layer and the external sheath layer being wrapped in described outer shielding layer periphery, and described cable also comprises and is arranged on the protective cover of conductor between described stranded center conductor and described dielectric layer, the inner shield protective layer between described internal shield and described outer shielding layer.The utility model, by arranging protective cover of conductor, makes cable in BENDING PROCESS, and the pitch of stranded center conductor can not be loose, improves number of bends and the useful life of cable; Secondly, be provided with inner shield protective layer, make cable when bending, internal shield is not loose, do not produce displacement with dielectric layer, further increase number of bends and the useful life of cable; Last dielectric layer adopts LD-PTFE material, ensure that, in the operational environment of-45 DEG C ~ 85 DEG C, cable still has the steady phasic property of higher temperature.
Description
[technical field]
The utility model belongs to radio-frequency communication manufacturing technology field, particularly relates to the steady phase radio frequency coaxial-cable of a kind of mechanical fixed ampllitude of super soft height.
[background technology]
Coaxial cable has referred to two concentric conductors, and conductor and screen share the cable in same axle center.Conventional coax cable center axis is a silver-plated copper wire, additional one deck insulating material, is that outermost one deck is insulating barrier by a hollow cylinder netted silver-plated copper conductor parcel outside this layer of insulating material.It is compared with twisted-pair feeder, and the antijamming capability of coaxial cable is strong, advantages of good shielding performance, transmission data stabilization, price are also cheap, and it need not be connected on hub or switch and can use.Along with the expansion of range of application, as robot arm communication, radar etc., it requires to improve greatly to the flexible number of times of coaxial cable.The structure of existing super flexible cable comprises stranded center conductor, dielectric, inner shield, external shield, oversheath.The cable of this structure can be accomplished super soft, but its mechanical bend performance can only reach 30,000 times at most, can not meet present industry, military exigence far away.And stranded center conductor easily scatters after repeatedly bending, destroy twisting pitch, thus cause the steady phasic property of the temperature of cable to decline, electric property is deteriorated.Through checking, the number of bends of the existing construction of cable can only reach 30,000 times at most, and after bending more than 30,000 times, the decay of cable becomes large, and attenuation stability is deteriorated.
Therefore, be necessary to provide a kind of steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height newly to solve the problems referred to above.
[utility model content]
Main purpose of the present utility model is to provide the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height that a kind of number of bends is many, the steady phasic property of temperature is good, the life-span is long.
The utility model is achieved through the following technical solutions above-mentioned purpose: the steady phase radio frequency coaxial-cable of a kind of mechanical fixed ampllitude of super soft height; it comprises by the stranded center conductor of inner outwards design successively, dielectric layer, the internal shield being wrapped in described dielectric layer periphery, outer shielding layer and the external sheath layer being wrapped in described outer shielding layer periphery, and described cable also comprises and is arranged on the protective cover of conductor between described stranded center conductor and described dielectric layer, the inner shield protective layer between described internal shield and described outer shielding layer.
Concrete, described stranded center conductor is the three-decker of some silver-plated copper conductor strand.
Concrete, what described protective cover of conductor and described external sheath layer adopted is FEP (perfluoroethylene-propylene) material, and its thickness is 0.2 ~ 0.5mm.
Concrete, described dielectric layer is made up by around-packing technology of novel LD-PTFE (low-density polytetrafluoroethylene) material.
Concrete, described internal shield adopts silver-plated copper around-packing technology to make, and its silver plating thicknesses is 0.2 ~ 0.5um.
Concrete, described inner shield protective layer adopts novel LD-PTFE (low-density polytetrafluoroethylene) around-packing technology, and tension force when it is wrapped is greater than 8N.
Concrete, described outer shielding layer is woven by silver-gilt copper wire to form.
Compared with prior art, the beneficial effect of the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of the super soft height of the utility model is:
(1) between stranded center conductor and dielectric layer, protective cover of conductor is provided with, instead of originally exposed stranded center conductor, by protective cover of conductor tightly be wrapped in stranded center conductor, make cable in BENDING PROCESS, the pitch of stranded center conductor can not be loose, improves number of bends and the useful life of cable;
(2) between internal shield and outer shielding layer, inner shield protective layer is provided with, by inner shield protective layer tightly be wrapped in internal shield and make its tightly be wrapped on dielectric layer, make cable when bending, internal shield is not loose, do not produce displacement with dielectric layer, further increases number of bends and the useful life of cable;
(3) dielectric layer adopts LD-PTFE material, ensure that in the operational environment of-45 DEG C ~ 85 DEG C, cable still has the steady phasic property of higher temperature---550PPM, prove by experiment, the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of the super soft height of the utility model is after 1,600,000 times bending, and its electric property does not still change.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of a kind of super soft height of the utility model.
Numeral in figure:
The 100 steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height;
1 stranded center conductor; 2 protective cover of conductors; 3 dielectric layers; 4 internal shields; 5 inner shield protective layers; 6 outer shielding layers; 7 external sheath layers.
[embodiment]
Please refer to Fig. 1; the utility model is the steady phase radio frequency coaxial-cable 100 (hereinafter referred to as cable) of the mechanical fixed ampllitude of super soft height, it comprise the stranded center conductor 1 being positioned at center, the protective cover of conductor 2 being wrapped in stranded center conductor 1 periphery, be wrapped in protective cover of conductor 2 periphery dielectric layer 3, be wrapped in dielectric layer 3 periphery internal shield 4, be wrapped in internal shield 4 periphery inner shield protective layer 5, be wrapped in the outer shielding layer 6 of inner shield protective layer 5 periphery and be wrapped in the external sheath layer 7 of outer shielding layer 6 periphery.
Stranded center conductor 1 is the three-decker being provided with 1,6,12 totally 19 silver-plated copper conductor strand from inside to outside successively, which increases the pliability of cable.
Protective cover of conductor 2 is FEP (perfluoroethylene-propylene) protective layer of 0.2 ~ 0.5mm by a layer thickness that high temperature sheath machine is stretched on stranded center conductor 1, makes stranded center conductor 1 being wrapped in protective cover of conductor 2 tightly.The high and low temperature resistance of FEP is good, can at-250 DEG C ~ 200 DEG C temperature Long-Time Service; Resistance to wear is good, and self-lubricating property is excellent, and electrical insulating property is excellent, and not by the impact of the humidity of operational environment, temperature and frequency, has good arc resistance; Chemical resistance is excellent, is widely used in every field, as mechanical industry is used as sealing ring, instrument and meter parts etc.; Electrical industry is used as cable insulation, cable cover(ing) etc.
Dielectric layer 3 adopts novel LD-PTFE (low-density polytetrafluoroethylene) around-packing technology to make.Polytetrafluoroethylene (Teflon or PTFE), being commonly called as " King ", is that its high and low temperature resistance is good by the macromolecular compound of tetrafluoroethene through being polymerized---can use for a long time in 200 DEG C ~ 260 DEG C environment, when low temperature-100 DEG C, still can keep soft; High lubrication---its coefficient of friction is 0.04, is that in plastics, coefficient of friction is minimum; Not viscosity---there is surface tension minimum in solid material and do not adhere to any material.Therefore make cable in communication transfer, have low-down loss, and have higher temperature stability, in-45 DEG C ~ 85 DEG C temperature ranges, the steady phase performance of its temperature reaches 550PPM.
Internal shield 4 adopts silver-plated copper around-packing technology to make, and its silver plating thicknesses is 0.2 ~ 0.5um, because silver has abundant ductility, therefore, can improve the bendability of cable.
Inner shield protective layer 5 is identical with the manufacturing process of dielectric layer 3; adopt novel LD-PTFE (low-density polytetrafluoroethylene) around-packing technology; tension force when it is wrapped needs to be greater than 8N, to ensure that the internal shield 4 of cable can tightly be attached on dielectric layer 3.
What outer shielding layer 6 adopted is silver-gilt copper wire weaving, is not only increased the shield effectiveness of cable, too increases the tensile strength of cable simultaneously, and make outer shielding layer 6 to be tightly wrapped on the inner shield protective layer 5 of cable by weaving.
The material that external sheath layer 7 adopts is identical with the material that protective cover of conductor 2 adopts, and is all FEP (perfluoroethylene-propylenes), cable so just can be enable to adapt to various external environment condition, improves the life-span of cable, expands its scope of application.
The utility model mechanical fixed ampllitude of super soft height steady phase radio frequency coaxial-cable 100 is provided with protective cover of conductor 2 between stranded center conductor 1 and dielectric layer 3, instead of originally exposed center conductor, by protective cover of conductor 2 tightly be wrapped in stranded center conductor 1, make cable in BENDING PROCESS, the pitch of stranded center conductor 1 can not be loose, improves number of bends and the useful life of cable; Secondly, inner shield protective layer 5 is provided with between internal shield 4 and outer shielding layer 6, by inner shield protective layer 5 tightly be wrapped in internal shield 4 and make its tightly be wrapped on dielectric layer 3, make cable when bending, internal shield 4 is not loose, do not produce displacement with dielectric layer 3, further increases number of bends and the useful life of cable; Dielectric layer 3 adopts LD-PTFE material, ensure that, in the operational environment of-45 DEG C ~ 85 DEG C, cable still has the steady phasic property of higher temperature---550PPM.Prove by experiment, the steady phase radio frequency coaxial-cable 100 of the mechanical fixed ampllitude of the super soft height of the utility model is after 1,600,000 times bending, and its electric property does not still change.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (7)
1. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height; it comprises by the stranded center conductor of inner outwards design successively, dielectric layer, the internal shield being wrapped in described dielectric layer periphery, outer shielding layer and the external sheath layer being wrapped in described outer shielding layer periphery, it is characterized in that: described cable also comprises and is arranged on the protective cover of conductor between described stranded center conductor and described dielectric layer, the inner shield protective layer between described internal shield and described outer shielding layer.
2. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, is characterized in that: described stranded center conductor is the three-decker of some silver-plated copper conductor strand.
3. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, it is characterized in that: what described protective cover of conductor and described external sheath layer adopted is perfluoroethylene-propylene material, its thickness is 0.2 ~ 0.5mm.
4. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, is characterized in that: described dielectric layer is made up by around-packing technology of novel low density polytetrafluoroethylene material.
5. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, is characterized in that: described internal shield adopts silver-plated copper around-packing technology to make, and its silver plating thicknesses is 0.2 ~ 0.5um.
6. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, is characterized in that: described inner shield protective layer adopts novel low density polytetrafluoroethylene around-packing technology, and tension force when it is wrapped is greater than 8N.
7. the steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height as claimed in claim 1, is characterized in that: described outer shielding layer is woven by silver-gilt copper wire to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124926.1U CN204516876U (en) | 2015-03-04 | 2015-03-04 | The steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124926.1U CN204516876U (en) | 2015-03-04 | 2015-03-04 | The steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height |
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| Publication Number | Publication Date |
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| CN204516876U true CN204516876U (en) | 2015-07-29 |
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| CN201520124926.1U Expired - Fee Related CN204516876U (en) | 2015-03-04 | 2015-03-04 | The steady phase radio frequency coaxial-cable of the mechanical fixed ampllitude of super soft height |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113724933A (en) * | 2021-08-11 | 2021-11-30 | 广东速联科技术有限公司 | High-transmission-rate coaxial cable and manufacturing process thereof |
-
2015
- 2015-03-04 CN CN201520124926.1U patent/CN204516876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113724933A (en) * | 2021-08-11 | 2021-11-30 | 广东速联科技术有限公司 | High-transmission-rate coaxial cable and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20200304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |