CN105655677B - Super soft aluminium outer conductor radio frequency coaxial cable - Google Patents
Super soft aluminium outer conductor radio frequency coaxial cable Download PDFInfo
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- CN105655677B CN105655677B CN201610152023.3A CN201610152023A CN105655677B CN 105655677 B CN105655677 B CN 105655677B CN 201610152023 A CN201610152023 A CN 201610152023A CN 105655677 B CN105655677 B CN 105655677B
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- outer conductor
- insulating layer
- conductor
- coaxial cable
- radio frequency
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/06—Coaxial lines
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- Waveguides (AREA)
Abstract
The present invention relates to super soft aluminium outer conductor radio frequency coaxial cables, belong to technical field of coaxial cable.Super soft aluminium outer conductor radio frequency coaxial cable, it from the inside to the outside successively include inner conductor, insulating layer and the outer conductor being mutually socketed, the axle center of the inner conductor and the outer conductor coincides, the inner conductor is provided with the vacant space of perforation in the normal orientation of cross section, supporting element is provided in the vacant space, the supporting element is flexible shaft；The insulating layer is the dielectric being spirally wound on the inner conductor outer surface, and the dielectric forms insulating layer spiral lamination；The insulating layer includes at least the exposed portion for exposing the inner conductor outer surface；The outer conductor wraps the insulating layer, is provided with outer conductor spiral lamination.The coaxial cable has both the low-loss of good bendable folding endurance and signal.
Description
Technical field
The present invention relates to technical field of coaxial cable, and in particular to super soft aluminium outer conductor radio frequency coaxial cable.
Background technique
China is the manufacturing nation of maximum radio frequency coaxial-cable and demand state in the world.In recent years, China Mobile produces
The rapid development of industry is greatly promoted demand of the market to radio frequency coaxial-cable.Meanwhile as downstream industry transmits signal
The requirement of quality is continuously improved, China for requirement of the radio frequency coaxial-cable in terms of softness and low-loss also increasingly
It is high.
Radio frequency coaxial-cable generally comprises inner conductor, insulating layer, outer conductor and sheath, softness by each section material
Material and its structure determine.And low-loss depends primarily on foam degrees, and since air proportion is higher in insulating layer, foam degrees
Better, the loss of signal is with regard to smaller in cable.Meanwhile when cable bend, insulating layer is difficult to provide enough supports, causes cable
Surface wrinkling when bending, bending section section flatten, the alignment of inner conductor and outer conductor is destroyed, will also result in the damage of signal
Consumption.
Therefore, the development of cable internal structure often gets down to find the balance between bending property and low-loss quality,
Optimal equalization point is found so that the super soft flexible of cable spacing can be with the low-loss quality of signal.
Authorization Notice No. is that the Chinese utility model patent of 201466188 U of CN discloses a kind of super soft RF coaxial electricity
Cable, it is characterised in that outer conductor and inner conductor use spiral corrugated structure.Though this structure can increase the softness of cable,
But low-loss effect could not be reached.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems, to provide a kind of super soft flexible and low-loss aluminium outer conductor
Radio frequency coaxial-cable.
Technical proposal that the invention solves the above-mentioned problems is as follows:
Super soft aluminium outer conductor radio frequency coaxial cable successively includes the inner conductor being mutually socketed, insulating layer and outer from the inside to the outside
The axle center of conductor, the inner conductor and the outer conductor coincides, and the inner conductor is provided in the normal orientation of cross section and passes through
Logical vacant space, supporting element is provided in the vacant space, and the supporting element is flexible shaft；The insulation
Layer is the dielectric being spirally wound on the inner conductor outer surface, and the dielectric forms insulating layer spiral lamination, described
Insulating layer spiral lamination includes the tooth bottom being recessed to the inner conductor direction；The insulating layer, which includes at least, to be exposed outside the inner conductor
The exposed portion on surface；The outer conductor wraps the insulating layer, is provided with outer conductor spiral lamination, the outer conductor spiral
Line includes the thread to the insulating layer protrusion.
Firstly, analyzing from the technical effect of soft pliable song, the present invention is for documents: 1. in inner conductor
It is equipped with supporting element, supporting element itself is more flexible for metal inner conductor, and provides for cable in bending
Enough supports；2. the branch for playing the insulating layer of part supporting role originally can be reduced on the basis of supporting element provides manufactured
Support requires, it is wound on the inner conductor with spiricle shape, when providing cable bend by the exposed portion between spiral lamination
Required compression and extending space, so that the not wrinkled deformation in cable bend portion；3. being provided with outer conductor spiral lamination on outer conductor
It is acted on above-mentioned insulating layer spiral lamination, for promoting the flexibility energy of the cable.
Secondly, analyzing from the low-loss technical effect of signal, the present invention is for documents: 1. in inner conductor
The supporting element set provides support, therefore can promote the insulation effect for playing the insulating layer of part supporting role originally emphatically, increases as far as possible
Big accounting of the exposed portion's (i.e. air) in the insulating layer；2. the exposed portion of insulating layer is mentioned in bending for the bending section of cable
The space compressed and stretched has been supplied, the coaxial property of the bending section inner conductor and outer conductor that ensure that cable is substantially interference-free,
Signal is alleviated in the loss in cable bend portion；3. being provided with outer conductor spiral lamination on outer conductor, it is acted on above-mentioned insulating layer spiral shell
Lira.
In conclusion this technical characteristic of supporting element is that the coaxial cable has both flexibility energy and low-loss quality mention
Technical foundation is supplied, on this basis, the spiral lamination structure of insulating layer and outer conductor improves the bendability of coaxial cable simultaneously
It can and reduce loss of the signal in transmission process.
As a preferred embodiment of the above technical solution, the precession direction of the outer conductor spiral lamination and the insulating layer spiral lamination
Precession is contrary, and the outer conductor spiral lamination and the insulating layer spiral lamination at least have supporting point.
Since outer conductor wraps insulating layer, so spiral salient, that is, insulator thread of the insulating layer to outer conductor direction
It can contact on multiple points with outer conductor to spiral salient, that is, outer conductor thread in insulating layer direction, mutually support.
As a preferred embodiment of the above technical solution, the precession direction of the outer conductor spiral lamination and the insulating layer spiral lamination
Precession direction and screw pitch are all the same, and the thread is connected on the tooth bottom, and there are air between the thread and the tooth bottom
Layer.
The opposite direction of rotation and wedging position or identical direction of rotation of outer conductor and insulating layer spiral lamination and spiral shell
Away from can separate inner conductor and outer conductor, increase gap between the two, while can also realize the mutual of outer conductor and insulating layer
Fixed effect.
In view of the dielectric that is directly wound in spiral lamination on the inner conductor and the inner conductor and outer conductor
Contact fastness is limited, therefore is reinforced using the structure that thread is clamped the tooth bottom to it.
As a preferred embodiment of the above technical solution, the insulating layer spiral lamination first anti-is squeezed along offering for precession direction interval
Indent.
As a preferred embodiment of the above technical solution, the thread offers the second anti-extrusion slot along precession direction interval.
The first anti-extrusion slot and the second anti-extrusion slot on insulating layer and outer conductor can expand outer conductor and inner conductor it
Between gap, can also make cable bending when provide crooked position compression/extension space, it is not easy to wrinkle.
As a preferred embodiment of the above technical solution, the volume ratio that the exposed portion accounts for the insulating layer is greater than 80%.
As a preferred embodiment of the above technical solution, the dielectric is foam insulating material.
As a preferred embodiment of the above technical solution, the supporting element and the inner conductor, the inner conductor and the insulating layer,
It is connected respectively by the first adhesive layer, the second adhesive layer and third adhesive layer between the insulating layer and the outer conductor.
As a preferred embodiment of the above technical solution, the supporting element includes central support shaft and wraps the central support shaft
Foamed plastic.
As a preferred embodiment of the above technical solution, the ratio between the maximum value with the maximum value of its outer diameter of the outer conductor thickness are less than
0.01。
Super soft aluminium outer conductor radio frequency coaxial cable of the present invention prepares the inner conductor with supporting element in production first,
The dielectric is wrapped on the inner conductor again, the processing of the outer conductor spiral lamination and cladding are compared with coaxial cable
Production method is identical；First anti-extrusion slot can be wrapped in the post-processing on the inner conductor in dielectric, can also process in advance
Then row winding again；Second anti-extrusion slot can be by realizing in pressure roller trussell, and the pressure roller is used to carry out the outer conductor
Processing has generated outer conductor spiral lamination.
In conclusion the present invention has the advantage that
Super soft aluminium outer conductor radio frequency coaxial cable of the present invention is more soft, flexible, transmission signal low-loss, and
Material cost is lower.
Detailed description of the invention
Fig. 1 is super soft aluminium outer conductor radio frequency coaxial cable cross section structure schematic diagram；
Fig. 2 is super soft aluminium outer conductor radio frequency coaxial cable side the schematic diagram of the section structure described in embodiment 1；
Fig. 3 is super soft aluminium outer conductor radio frequency coaxial cable side the schematic diagram of the section structure described in embodiment 2；
In figure, 0- supporting element, 01- central axis supporting element, 02- foamed plastic, 1- inner conductor, 2- insulating layer, 21- tooth bottom,
The anti-extrusion slot of 22- first, 3- outer conductor, 31- thread, the anti-extrusion slot of 311- second, 4- air layer, the first adhesive layer of a-, b-
Two adhesive layers, c- third adhesive layer.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Embodiment in the present invention, ordinary skill
Personnel's all other embodiment obtained under the premise of not doing creative work, shall fall within the protection scope of the present invention.
With embodiment, the present invention is described in detail with reference to the accompanying drawing.
Embodiment 1: super soft aluminium outer conductor radio frequency coaxial cable successively includes the inner conductor 1 being mutually socketed, exhausted from the inside to the outside
The axle center of edge layer 2 and outer conductor 3, the inner conductor 1 and the outer conductor 3 coincides, and the inner conductor 1 is along cross section normal direction side
The vacant space of perforation is set up, supporting element 0 is provided in the vacant space, the supporting element 0 is flexible
Shaft；The insulating layer 2 is the dielectric being spirally wound on 1 outer surface of inner conductor, and the dielectric is hair
Insulating materials is steeped, insulating layer spiral lamination is formed, the insulating layer spiral lamination includes the tooth bottom being recessed to 1 direction of inner conductor
21；The insulating layer 2 includes at least the exposed portion for exposing 1 outer surface of inner conductor, and the exposed portion accounts for the insulating layer 2
Volume ratio is 85%；The outer conductor 3 wraps the insulating layer 2, is provided with outer conductor spiral lamination, the outer conductor spiral shell
Lira includes the thread 31 to 2 protrusion of insulating layer.
The precession direction of the outer conductor spiral lamination and the precession direction of the insulating layer spiral lamination and screw pitch are all the same, institute
It states thread 31 to be connected on the tooth bottom 21, there are air layers 4 between the thread 31 and the tooth bottom 21.
The supporting element 0 and the inner conductor 1, the inner conductor 1 and the insulating layer 2, the insulating layer 2 and described outer
It is connected respectively by the first adhesive layer a, the second adhesive layer b with third adhesive layer c between conductor 3.
Super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that the supporting element 0 wraps
It includes central support shaft 01 and wraps the foamed plastic 02 of the central support shaft 01.
Embodiment 2: super soft aluminium outer conductor radio frequency coaxial cable successively includes the inner conductor 1 being mutually socketed, exhausted from the inside to the outside
The axle center of edge layer 2 and outer conductor 3, the inner conductor 1 and the outer conductor 3 coincides, and the inner conductor 1 is along cross section normal direction side
The vacant space of perforation is set up, supporting element 0 is provided in the vacant space, the supporting element 0 is flexible
Shaft；The insulating layer 2 is the dielectric being spirally wound on 1 outer surface of inner conductor, and the dielectric is hair
Insulating materials is steeped, insulating layer spiral lamination is formed, the insulating layer spiral lamination includes the tooth bottom being recessed to 1 direction of inner conductor
21；The insulating layer 2 includes at least the exposed portion for exposing 1 outer surface of inner conductor, and the exposed portion accounts for the insulating layer 2
Volume ratio is 82%；The outer conductor 3 wraps the insulating layer 2, is provided with outer conductor spiral lamination, the outer conductor spiral shell
Lira includes the thread 31 to 2 protrusion of insulating layer.
The supporting element 0 and the inner conductor 1, the inner conductor 1 and the insulating layer 2, the insulating layer 2 and described outer
It is connected respectively by the first adhesive layer a, the second adhesive layer b with third adhesive layer c between conductor 3.
The precession direction of the outer conductor spiral lamination is contrary with the precession of the insulating layer spiral lamination, the insulating layer
For spiral lamination along the first anti-extrusion slot 22 that offers at precession direction interval, the thread 31 offers along precession direction interval
Two anti-extrusion slots 311.
Claims (8)
1. super soft aluminium outer conductor radio frequency coaxial cable successively includes inner conductor (1), the insulating layer (2) being mutually socketed from the inside to the outside
With outer conductor (3), the axle center of the inner conductor (1) and the outer conductor (3) coincides, it is characterised in that: the inner conductor (1)
It is provided with the vacant space of perforation in the normal orientation of cross section, supporting element (0), the support are provided in the vacant space
Part (0) is flexible shaft；The insulating layer (2) is the insulation being spirally wound on the inner conductor (1) outer surface
Medium, the dielectric form insulating layer spiral lamination, and the insulating layer spiral lamination includes being recessed to the inner conductor (1) direction
Tooth bottom (21)；The insulating layer (2) includes at least the exposed portion for exposing inner conductor (1) outer surface；The outer conductor (3)
The insulating layer (2) are wrapped, outer conductor spiral lamination is provided with, the outer conductor spiral lamination includes to the insulating layer
(2) raised thread (31)；The precession direction and spiral shell of the precession direction of the outer conductor spiral lamination and the insulating layer spiral lamination
Away from all the same, the thread (31) is connected on the tooth bottom (21), exists between the thread (31) and the tooth bottom (21)
Air layer (4)；The ratio between the maximum value of outer conductor (3) thickness and the maximum value of its outer diameter are less than 0.01.
2. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that the outer conductor spiral lamination
Precession direction it is contrary with the precession of the insulating layer spiral lamination.
3. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1 or 2, which is characterized in that the insulating layer spiral shell
Lira offers the first anti-extrusion slot (22) along precession direction interval.
4. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1 or 2, which is characterized in that the thread (31)
The second anti-extrusion slot (311) is offered along precession direction interval.
5. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that the exposed portion accounts for described
The volume ratio of insulating layer (2) is greater than 80%.
6. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that the dielectric is hair
Steep insulating materials.
7. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that the supporting element (0) with
Divide between the inner conductor (1), the inner conductor (1) and the insulating layer (2), the insulating layer (2) and the outer conductor (3)
Not Tong Guo the first adhesive layer (a), the second adhesive layer (b) be connected with third adhesive layer (c).
8. super soft aluminium outer conductor radio frequency coaxial cable according to claim 1, which is characterized in that supporting element (0) packet
It includes central support shaft (01) and wraps the foamed plastic (02) of the central support shaft (01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152023.3A CN105655677B (en) | 2016-03-17 | 2016-03-17 | Super soft aluminium outer conductor radio frequency coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152023.3A CN105655677B (en) | 2016-03-17 | 2016-03-17 | Super soft aluminium outer conductor radio frequency coaxial cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105655677A CN105655677A (en) | 2016-06-08 |
| CN105655677B true CN105655677B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610152023.3A Active CN105655677B (en) | 2016-03-17 | 2016-03-17 | Super soft aluminium outer conductor radio frequency coaxial cable |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244714A (en) * | 2018-10-22 | 2019-01-18 | 镇江市华展电子科技有限公司 | High performance radio frequeney connector |
| CN109524752A (en) * | 2019-01-11 | 2019-03-26 | 广州天移通信科技发展有限公司 | A kind of helicitic texture insulating layer low-loss semi-flexible radio-frequency coaxial cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202258403U (en) * | 2011-09-07 | 2012-05-30 | 江苏通鼎光电股份有限公司 | Inner conductor for cable |
| CN204189486U (en) * | 2014-09-01 | 2015-03-04 | 国网山东省电力公司日照供电公司 | A kind of Anti-pressure cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003168330A (en) * | 2001-11-29 | 2003-06-13 | Mitsubishi Cable Ind Ltd | Leakage cable |
| CN204271227U (en) * | 2014-12-09 | 2015-04-15 | 天津米克威科技有限公司 | The polytetrafluoroethylene rope winding type soft copper pipe that insulate shields low attenuating RF cable |
| CN205406691U (en) * | 2016-03-17 | 2016-07-27 | 浙江德通科技有限公司 | Super gentle aluminium outer conductor radio frequency coaxial cable |
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2016
- 2016-03-17 CN CN201610152023.3A patent/CN105655677B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202258403U (en) * | 2011-09-07 | 2012-05-30 | 江苏通鼎光电股份有限公司 | Inner conductor for cable |
| CN204189486U (en) * | 2014-09-01 | 2015-03-04 | 国网山东省电力公司日照供电公司 | A kind of Anti-pressure cable |
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| CN105655677A (en) | 2016-06-08 |
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Effective date of registration: 20230316 Address after: No. 138, Taodu Road, Dingshu Town, Yixing City, Wuxi City, Jiangsu Province, 214000 Patentee after: JIANGSU HENGXIN TECHNOLOGY Co.,Ltd. Address before: 313000 Zhejiang Detong Technology Co., Ltd., Huancheng North Road, Deqing Economic Development Zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG DETONG TECHNOLOGY Co.,Ltd. |
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