CN205488443U - Polyethylene insulation radio frequency coaxial cable - Google Patents
Polyethylene insulation radio frequency coaxial cable Download PDFInfo
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- CN205488443U CN205488443U CN201620025476.5U CN201620025476U CN205488443U CN 205488443 U CN205488443 U CN 205488443U CN 201620025476 U CN201620025476 U CN 201620025476U CN 205488443 U CN205488443 U CN 205488443U
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- radio frequency
- polyethylene insulation
- frequency coaxial
- polyethylene
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Abstract
Higher for polyethylene insulation radio frequency coaxial cable dielectric constant in overcoming prior art, the impedance is higher, problem that transmission rate is low, the utility model provides a polyethylene insulation radio frequency coaxial cable, it includes center conductor, polyethylene insulation, shielding layer and sheath from inside to outside in proper order, polyethylene insulation includes inlayer, skin and is located a plurality of supports wall muscle between inlayer, the skin, it will to support the wall muscle a plurality of sectorial vertical through -holes are equallyd divide into in space between inlayer and the skin. The utility model provides a polyethylene insulation radio frequency coaxial cable and since its polyethylene insulation in be equipped with a plurality of sectorial vertical through -holes, consequently, its very big improvement its polyethylene insulation's porosity, reduced its dielectric constant and impedance effectively, improve this polyethylene insulation radio frequency coaxial cable's transmission rate. And polyethylene insulation radio frequency coaxial cable's cost has effectively been reduced.
Description
Technical field
This utility model relates to a kind of field of cables, especially polyethylene insulation radio frequency coaxial-cable.
Background technology
Gaining the name of radio frequency coaxial-cable is relevant to its structure.Radio frequency coaxial-cable is also most common in LAN
One of transmission medium.It is used for the pair of conductors of information of transmitting is to be enclosed within according to the outer conductor of one layer of drum type brake
Inner wire (a thin core) outside, the structure system choosing being mutually isolated with insulant between two conductors, outward
The center of circle of layer conductor and central shaft heart yearn is on same axle center, so being called radio frequency coaxial-cable, radio frequency is same
Why shaft cable is designed to so, also for the transmission preventing external electromagnetic wave interference abnormal signal.
This radio frequency coaxial-cable is applicable to video field, communication system and whistle control system, video monitoring line
Road, broadcast singal control, public TV antenna, closed-circuit TV control system, for radio communication, biography
Communication system and being unidirectionally controlled or internal distribution of altofrequency machine etc..
Wherein, insulant generally comprises polyethylene or fluoroplastics etc., polyethylene due to its cost relative to
For fluoroplastics lower, but dielectric constant is higher, therefore, the most traditional polyethylene insulation radio-frequency (RF) coaxial electricity
Cable all can be used only in the field of relatively bottom, to this end, as improving, as it is shown in figure 1, prior art discloses
Insulating radio frequency coaxial cable after improvement, its include the most successively center conductor 1, polyethylene layer 2,
Screen layer 3 and sheath 4；Wherein, polyethylene layer 2 is formed with the longitudinal hole 21 of circle, as
This, can reduce its dielectric constant further, to improve its porosity, improves transfer rate.But, Shen
Asking someone to find that its porosity is the most relatively low, dielectric constant is the highest, and impedance is higher, and transfer rate is low, needs
To reduce its dielectric constant further, reduce impedance, improve transfer rate.
Utility model content
For overcoming polyethylene insulation radio frequency coaxial-cable dielectric constant in prior art higher, impedance is higher, passes
The problem that defeated speed is low, this utility model provides a kind of polyethylene insulation radio frequency coaxial-cable.
This utility model provide polyethylene insulation radio frequency coaxial-cable, include the most successively center conductor,
Polyethylene layer, screen layer and sheath；
Described polyethylene layer includes that internal layer, outer layer and the some supports between internal layer, outer layer cut off
Muscle；Space between described internal layer and outer layer is divided into the longitudinal hole of some sectors by the described partition muscle that supports.
Preferably, described screen layer includes aluminium foil and braid.
Preferably, the porosity of described polyethylene layer is 70%-80%.
Preferably, the number of the longitudinal hole of described sector is 5-9.
Preferably, described center conductor is copper core, or electroplate or tin plating copper core.
Preferably, it is soaked with tin layers outside described braid.
The polyethylene insulation radio frequency coaxial-cable that this utility model provides, owing to being provided with in its polyethylene layer
The longitudinal hole of some sectors, therefore, it greatly improves the porosity of its polyethylene layer, effectively
Reduce its dielectric constant and impedance, improve the transfer rate of this polyethylene insulation radio frequency coaxial-cable.And
Effectively reduce the cost of polyethylene insulation radio frequency coaxial-cable.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of a kind of polyethylene insulation radio frequency coaxial-cable provided in prior art；
Fig. 2 is the solid of the polyethylene insulation radio frequency coaxial-cable provided in this utility model detailed description of the invention
Schematic diagram；
Fig. 3 is the transversal of the polyethylene insulation radio frequency coaxial-cable of offer in this utility model detailed description of the invention
Face schematic diagram.
Wherein, 1, center conductor；2, polyethylene layer；3, screen layer；4, sheath；21, longitudinally
Through hole；2a, internal layer；2b, support cut off muscle；2c, outer layer；31, aluminium foil；32, braid.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer,
Below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that herein
Described specific embodiment, only in order to explain this utility model, is not used to limit this utility model.
Embodiment
The polyethylene insulation radio frequency coaxial-cable that this utility model provides, includes center conductor the most successively
1, polyethylene layer 2, screen layer 3 and sheath 4；
Described polyethylene layer 2 includes internal layer 2a, outer layer 2c and between internal layer 2a, outer layer 2c
Some support cuts off muscle 2b；Described support cuts off muscle 2b by equal for the space between described internal layer 2a and outer layer 2c
It is divided into the longitudinal hole 21 of some sectors.
Wherein, this center conductor 1 is copper core, or electroplate or tin plating copper core.Its diameter can be
1.10-1.15mm。
The number of longitudinal hole 21 fan-shaped in described polyethylene layer 2, by different size, can be 5-15
Individual, in this example, the number of the longitudinal hole 21 of described sector is 5-9.This example is specially 5.Fixed
It is porosity that the volume of the longitudinal hole 21 of this sector of justice accounts for the ratio of whole polyethylene layer 2 volume, this
In example, the porosity of described polyethylene layer 2 is 50%-80%, specially 70-80%.On using
State number and the porosity of polyethylene layer 2 of the most fan-shaped longitudinal hole 21, drop dramatically
The low dielectric constant of polyethylene layer 2.
It is outside that this polyethylene layer 2 is wrapped in center conductor 1 by the way of extrusion molding, and it is in extrusion
Machine is provided with special core rod so that it is polyethylene layer 2 extrusion after cooling can obtain sector longitudinal direction lead to
Hole 21.
Wherein, in this example, described screen layer 3 includes aluminium foil 31 and braid 32.As preferred mode,
It is soaked with tin layers outside described braid 32.Braid 32 is typically divided into 16 ingots or 24 ingots by 80-144 root copper cash,
Being knitted to form on braider, this copper cash can also be tinned wird；After completing braid 32, soaked
Bubble certain time in tin liquor, i.e. obtain the braid 32 being soaked with tin layers.This braid 32 thickness is
0.2-0.3mm, the thickness of wicking is generally 0.01-0.05mm.
The material of sheath 4 includes that all kinds of fluororesin or PE, PP, PVC (polrvinyl chloride), LSZH are (low
Cigarette halogen-free flameproof cable material) etc..Its thickness equidimension is the most known to those skilled in the art, repeats no more.
The manufacturing process of polyethylene insulation radio frequency coaxial-cable is described below.
The most ready copper core, introduces copper core in cross-head, then sends in extruder by polyethylene,
As required, by specification size, design core rod, core rod is designed to corresponding with fan-shaped longitudinal hole 21
5-9 equal portions, the most i.e. by extruder at polyethylene layer 2 described in the outer continuous extrusion of copper core.Will be
The semi-finished product of copper core outer cladding polyethylene layer 2 are referred to as insulation core wire.
Then by after insulation core wire one layer of aluminium foil 31 of parcel, introducing in braider, braider is by 16 ingots or 24
Ingot (radical of every ingot copper line according to density need be designed) and silk weave, the volume described in formation
Semi-finished product through this braider are referred to as weaving heart yearn by tissue layer 32.
Then import again in molten tin bath after described braiding heart yearn being imported a flux bath (it is built with scaling powder),
Accommodating melted temperature in this molten tin bath and be up to the tin liquor of 232 DEG C to 280 DEG C, braiding heart yearn is quickly through this stannum
Groove, so, has i.e. carried out wicking process to braid 32.
Then braiding heart yearn is passed through an extruder, at described screen layer 3 outer formation one sheath 4, the most i.e. obtain
Obtain the polyethylene insulation radio frequency coaxial-cable described in this example.
The polyethylene insulation radio frequency coaxial-cable that this utility model provides, owing to setting in its polyethylene layer 2
Having the longitudinal hole 21 of some sectors, therefore, it greatly improves the porosity of its polyethylene layer 2,
Significantly reduce its dielectric constant and impedance, improve the transfer rate of this polyethylene insulation radio frequency coaxial-cable.
And effectively reduce the cost of polyethylene insulation radio frequency coaxial-cable.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should
Within being included in protection domain of the present utility model.
Claims (6)
1. a polyethylene insulation radio frequency coaxial-cable, includes center conductor, polyethylene layer, screen layer and sheath the most successively；
It is characterized in that, described polyethylene layer includes that internal layer, outer layer and the some supports between internal layer, outer layer cut off muscle；Space between described internal layer and outer layer is divided into the longitudinal hole of some sectors by the described partition muscle that supports.
Polyethylene insulation radio frequency coaxial-cable the most according to claim 1, it is characterised in that described screen layer includes aluminium foil and braid.
Polyethylene insulation radio frequency coaxial-cable the most according to claim 1, it is characterised in that the porosity of described polyethylene layer is 70%-80%.
Polyethylene insulation radio frequency coaxial-cable the most according to claim 1, it is characterised in that the number of the longitudinal hole of described sector is 5-9.
Polyethylene insulation radio frequency coaxial-cable the most according to claim 1, it is characterised in that described center conductor is copper core or electroplate or tin plating copper core.
Polyethylene insulation radio frequency coaxial-cable the most according to claim 2, it is characterised in that be soaked with tin layers outside described braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025476.5U CN205488443U (en) | 2016-01-12 | 2016-01-12 | Polyethylene insulation radio frequency coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620025476.5U CN205488443U (en) | 2016-01-12 | 2016-01-12 | Polyethylene insulation radio frequency coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205488443U true CN205488443U (en) | 2016-08-17 |
Family
ID=56667033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620025476.5U Active CN205488443U (en) | 2016-01-12 | 2016-01-12 | Polyethylene insulation radio frequency coaxial cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN205488443U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109731A (en) * | 2017-11-30 | 2018-06-01 | 新宇电缆集团股份有限公司 | A kind of single radio-frequency cable |
| CN109087726A (en) * | 2018-09-10 | 2018-12-25 | 合肥远发信息科技有限责任公司 | A kind of acid bronze alloy coaxial cable for high frequency |
| CN117637257A (en) * | 2023-11-30 | 2024-03-01 | 广东关西科技有限公司 | Sector coupling core coaxial cable and preparation process thereof |
| CN117637257B (en) * | 2023-11-30 | 2024-07-09 | 广东关西科技有限公司 | Sector coupling core coaxial cable and preparation process thereof |
-
2016
- 2016-01-12 CN CN201620025476.5U patent/CN205488443U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109731A (en) * | 2017-11-30 | 2018-06-01 | 新宇电缆集团股份有限公司 | A kind of single radio-frequency cable |
| CN109087726A (en) * | 2018-09-10 | 2018-12-25 | 合肥远发信息科技有限责任公司 | A kind of acid bronze alloy coaxial cable for high frequency |
| CN109087726B (en) * | 2018-09-10 | 2023-10-03 | 合肥远发信息科技有限责任公司 | Copper-based alloy high-frequency coaxial cable |
| CN117637257A (en) * | 2023-11-30 | 2024-03-01 | 广东关西科技有限公司 | Sector coupling core coaxial cable and preparation process thereof |
| CN117637257B (en) * | 2023-11-30 | 2024-07-09 | 广东关西科技有限公司 | Sector coupling core coaxial cable and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518118 1-5 floors of No. 2 workshop of Tonglixing Industrial Plant, No. 8 Lanzhu East Road, Pingshan New District, Shenzhen City, Guangdong Province Patentee after: Guangdong Standard Top Electronics Co., Ltd. Address before: 518118 1-5 floors of No. 2 workshop of Tonglixing Industrial Plant, No. 8 Lanzhu East Road, Pingshan New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BIADI TECHNOLOGY CO., LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518118 1-5 floors of No. 2 workshop of Tonglixing Industrial Plant, No. 8 Lanzhu East Road, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Guangdong Standard Top Electronics Co., Ltd. Address before: 518118 1-5 floors of No. 2 workshop of Tonglixing Industrial Plant, No. 8 Lanzhu East Road, Pingshan New District, Shenzhen City, Guangdong Province Patentee before: Guangdong Standard Top Electronics Co., Ltd. |