CN209000563U - A kind of shielding band and the unmasked cable with it - Google Patents
A kind of shielding band and the unmasked cable with it Download PDFInfo
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- CN209000563U CN209000563U CN201821317154.3U CN201821317154U CN209000563U CN 209000563 U CN209000563 U CN 209000563U CN 201821317154 U CN201821317154 U CN 201821317154U CN 209000563 U CN209000563 U CN 209000563U
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- cable
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- insulating layer
- unmasked
- shielding band
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Abstract
This application discloses a kind of shielding band and with its unmasked cable, it is related to unmasked cable structure technical field.In this application, shielding band includes metal layer, the first insulating layer and second insulating layer, and the first insulating layer and second insulating layer are separately positioned on metal layer two sides.It can be used as unmasked cable with shielding band cable to carry out using being arranged between cable and restrictive coating, the electromagnetic interference that metal layer therein can effectively outside shielded cable improves the anti-external disturbance ability of cable.
Description
Technical field
This application involves unmasked cable fields, are related specifically to a kind of shielding band and the unmasked cable with it.
Background technique
Existing CAT.6A unmasked cable (Unshielded Twisted Paired, hereinafter referred to as UTP) does not have generally
Standby function of shielding is prevented so needing to be improved its anti-interference ability using some well known technological means in common peace
The mutual crosstalk of cable adjacent to each other in assembling structure.For example, by cable install bunchy when using different laying up pitch cable,
Or the line of cable inner is come and increases the gap between line pair and oversheath to being mutually isolated using crossing skeleton, may be used also
To be reduced as far as the contact area of adjacent cables, the phase between cable and cable, between line pair and line pair is reduced with this
Mutual cross-talk.
Despite the use of above-mentioned interference protection measure, but existing UTP CAT.6A class cable cannot prevent alien crosstalk completely
Interference, it is also necessary to take additional salvo to prevent crosstalk, increase anti-interference ability.
It can also be carried out data transmission using shielded cable (Foiled Twisted Pair, hereinafter referred to as FTP), but FTP
Be by the outside of cable core using by metal foil shield the shielded layer that forms of band and the drain wire being arranged on the inside of the shielded layer into
Row shielding electromagnetic interference, therefore its use cost is naturally larger than the cost of UTP.In FTP, shielding band is generally using band, volume
It the outside that the form that one or more modes combine is coated on cable core such as knits, wind, there is double-layer structure, by wide insulating layer
(such as mylar PET) and wide metal foil layer (such as aluminium foil) are pasted by glue, baking is combined.Wherein, absolutely
Outwardly, metal foil layer inwardly, is provided with the drain wire on a piece-root grafting ground, metal foil layer to edge layer between metal foil layer and cable cable core
It will accumulate in the discharge of the electrostatic on metal foil layer to shield electromagnetic interference, and by drain wire, prevent electrostatic interference, realize screen
The function of covering.In addition, drain wire must be made to be grounded in cable and damper ends installs connector using when FTP, installation steps ratio UTP is multiple
It is miscellaneous, while increasing installation cost.
It also proposed a kind of discontinuous shielding band at present, non-conductive gap is arranged in the program on the shielding layer, which can
The other end is transmitted to generate interference from one end of cable to avoid the signal carried out in shielded layer, can be avoided in cable
It is middle to use drain wire, reduce the production cost and installation cost of cable.But the gap can also generate electromagnetic leakage, lead to gold
The shield effectiveness for belonging to shielded layer is had a greatly reduced quality.
Utility model content
The purpose of the application is to provide a kind of shielding band of double-sided insulation, not only shield effectiveness with higher, but also can keep away
Exempt to improve the anti-interference ability of UTP CAT.6A class cable using drain wire in cable.
To achieve the above object, the embodiment of the present application uses following technical scheme: a kind of shielding band, including metal layer, should
Metal layer is made of metal foil；The side of metal layer is arranged in first insulating layer, first insulating layer；Second insulating layer, this
The other side of the metal layer is arranged in two insulating layers.
In the above-mentioned technical solutions, the embodiment of the present application provides a kind of shielding band, which is the gold of double-sided insulation
Belong to foil, metal layer can electromagnetic wave inside and outside shielded cable, the first insulating layer and second insulating layer can completely cut off in metal layer
Electrostatic interference can play jamproof effect when its use is on cable.
Further, according to the embodiment of the present application, wherein metal foil is copper foil or aluminium foil.Copper foil and with aluminium foil be low-resistance
The metal material of rate can generate electromagnetic eddy, the negative function to external electromagnetic wave be formed, to achieve the effect that shielding.
Further, according to the embodiment of the present application, wherein the first insulating layer and second insulating layer are made of PET film.
PET film band has insulation effect, can completely cut off the electrostatic interference in metal layer.
Further, according to the embodiment of the present application, wherein metal layer and the first insulating layer, second insulating layer pass through glue
Connection is pasted, makes to fasten with glue, production is simple.
Further, according to the embodiment of the present application, wherein the first insulating layer, metal layer and second insulating layer are of same size,
It can guarantee to shield band when in use in this way, the cable core periphery of cable is all covered with metal foil, guarantee the shield effectiveness of shielding band,
In addition, the embodiment of the present application also provides a kind of shielding band production method, for manufacturing above-mentioned shielding band, including with
Lower step:
A): preparing the raw material PET film and aluminium foil of production shielding band；
B): completing aluminium foil in shielding band production tooling, will apply glue in the one side of aluminium foil, then PET film is covered
On the function of glue coating of aluminium foil, finally by drying adhesive；
C): aluminium foil turn-over applying glue on the another side of aluminium foil, then the glue that PET film is covered on aluminium foil is applied
On layer, finally by drying adhesive；
D): the aluminium foil finished will be pasted and cut, the shielding band of a rule specific width is formed.
The another object of the application is to provide a kind of unmasked cable with above-mentioned shielding band, makes UTP CAT.6A class line
Cable has function of shielding, to meet growing bandwidth demand.
In order to achieve the above objectives, the embodiment of the present application uses following technical scheme: a kind of unmasked cable, including cable core,
The cable core includes conductor；Shielded layer, the shielded layer are made of above-mentioned shielding band, and shielded layer is arranged on the outside of cable core；Sheath
Layer, restrictive coating are arranged on the outside of the shielded layer.
In the above-mentioned technical solutions, the embodiment of the present application is by the shielding band in cable using double-sided insulation, in cable core
One layer of shielded layer is arranged in outside, plays the role of shielding inside and outside electromagnetic wave.In addition, the shielded layer two sides are provided with the first insulating layer
And second insulating layer, the electrostatic interference in metal layer can be completely cut off, setting drain wire is not needed and carry out ground connection installation, reduce line
The manufacture of cable and installation cost.
Further, according to the embodiment of the present application, wherein cable core further includes having crossing skeleton, crossing skeleton and shielded layer
Inside constitutes accommodating chamber, which provides accommodation space for conductor.Crossing skeleton will be divided at least four appearances inside cable
It receives space, the conductor in cable core can be completely cut off and be come, avoid interfering with each other for cable inner conductor.
Further, according to the embodiment of the present application, wherein conductor at least two, conductor spiral is twisted to form at least one
Group twisted pair.
Further, according to the embodiment of the present application, wherein be enclosed with insulating layer on the outside of conductor.
Further, according to the embodiment of the present application, wherein shielded layer is wrapped in cable core by the way of cladding or winding
Outside, and the shielded layer place of putting up is overlapped, and guarantees the shield effectiveness of shielded layer.
In addition, the application implementation additionally provides a kind of manufacturing method of unmasked cable, for manufacturing above-mentioned unmasked line
Cable, comprising the following steps:
E): production twisted pair: preparing the raw material copper bar of conductor, carries out wire drawing to copper bar, then in copper wire outer cladding absolutely
Edge material PE, makes to be enclosed with insulating layer on the outside of copper wire conductor；Then, by two conductor pair twists with insulating layer at multiple twin
Line；
F): production cable core: four twisted pairs being mounted in the accommodating chamber of crossing skeleton by cable-former, cable is made
Core；
G): addition shielded layer and restrictive coating: superscribing shielding band by way of cladding on the outside of cable core, wherein shielded layer
Place's overlapping is put up, shielded layer is formed；Finally, restrictive coating is arranged in the outside of shielded layer.
Detailed description of the invention
The application is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram that band is shielded in the embodiment of the present application.
Fig. 2 is the cross-sectional view of the unmasked cable with the shielding band in Fig. 1 in the embodiment of the present application.
Fig. 3 is the result schematic diagram of the PSANEXT test of unmasked cable described in Fig. 2.
Fig. 4 is the result schematic diagram of the PSAACRF test of unmasked cable described in Fig. 2.
In attached drawing
1, the first insulating layer 2, metal layer 3, second insulating layer
10, cable core 101, crossing skeleton 102, accommodating chamber
103, twisted pair 104, conductor 105, insulating layer
20, shielded layer
30, restrictive coating
Specific embodiment
In order to which the objects, technical solutions and advantages of the application are more clearly understood, with reference to embodiments, to the application
It is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, it is not used to
Limit the application.
Embodiment one:
As shown in Figure 1, present embodiment discloses a kind of shielding band of double-sided insulation, including the first insulating layer 1, metal layer 2
With second insulating layer 3, wherein the first insulating layer 1 and second insulating layer 3 are respectively overlay in the two sides of metal layer 2, and pass through glue
Paste connection.Specifically, the first insulating layer 1 and second insulating layer 3 are all made of the plastic film with insulation performance, such as poly- pair
The films bands such as ethylene terephthalate PET, polyethylene naphthalate PEN, polypropylene PP, are specifically adopted in the present embodiment
With PET film band.Metal layer 2 uses aluminium foil or copper foil, and the metal material of this low-resistance rate can generate electromagnetic eddy, is formed
Negative function to external electromagnetic wave, to achieve the effect that shielding.
In the present embodiment, the equivalent width of the first insulating layer 1, metal layer 2 and second insulating layer 3,1 He of the first insulating layer
Second insulating layer 3 covers all metal layer 2, is isolated between metal layer 3 and cable core by second insulating layer 3, avoids metal
Electrostatic in layer 3 generates interference to second insulating layer, therefore when shielding band described in the present embodiment is coated on cable core, it does not need
The drain wire of additional setting ground connection, has saved the processing cost and installation cost of cable.
The using effect of the present embodiment and shielding band in the prior art is as shown in table 1.
The shielding band using effect contrast table of table 1
Embodiment two:
In the present embodiment, a kind of manufacture craft for making and shielding band described in embodiment one, the shielding belt are disclosed
There are the first insulating layer 1, metal layer 2 and second insulating layer 3, the first insulating layer 1 and second insulating layer 3 are all made of PET film, metal
Layer 2 uses aluminium foil, specifically includes the following steps:
A): preparing the raw material PET film and aluminium foil of production shielding band；
B): completing aluminium foil in shielding band production tooling, will apply glue in the one side of aluminium foil, then PET film is covered
On the function of glue coating of aluminium foil, finally by drying adhesive；
C): aluminium foil turn-over applying glue on the another side of aluminium foil, then the glue that PET film is covered on aluminium foil is applied
On layer, finally by drying adhesive；
D): the aluminium foil finished will be pasted and cut, the shielding band of a rule specific width is formed.
Embodiment three:
As shown in Fig. 2, in the present embodiment, a kind of unmasked cable with shielding band described in embodiment one is disclosed,
It from inside to outside successively include cable core 10, shielded layer 20 and restrictive coating 30, wherein shielded layer 20 is wound or coated by above-mentioned shielding band
It forms, to guarantee its shield effectiveness, the place of putting up of the winding of shielding band or cladding is overlapped, specifically the Duplication in the present embodiment
More than or equal to 25%.Due to being both provided with insulating materials (the first insulating layer 1 and second insulating layer inside and outside shielded layer 20
3), metal layer 2 and cable core 10, the isolation of restrictive coating 30 are come, therefore when in use, on metal layer 2 charge will not be to cable inside and outside
It generates electrostatic interference not needing that drain wire is additionally arranged compared with existing FTP and carry out ground connection installation, with existing UTP phase
Than having preferable shield effectiveness again.
In addition, in the present embodiment, cable core 10 includes a crossing skeleton 101, shape on the inside of the crossing skeleton 101 and shielded layer
At the accommodating chamber 102 of four relative closures, twisted pair 103 is installed, twisted pair 103 is by two conductors 104 in the accommodating chamber 102
Spiral is twisted, and insulating layer 105 is enclosed on the outside of conductor 104.Wherein, crossing skeleton 101 and insulating layer 105 are in the present embodiment
In be specifically made of highdensity PE material, PE material has lower dielectric constant, can prevent between conductor 104, is double
It is interfered with each other between twisted wire 103；Conductor 104 uses 99.95% oxygen-free copper, conductivity with higher.
Secondly, restrictive coating 30 is made of plastic material, have the function of protecting cable cable core.
The shield effectiveness test result of above-mentioned unmasked cable is as shown in Figure 3-4, is all satisfied cable key test parameter
The requirement of PSANEXT (comprehensive Alien Next power and) and PSAACRF (comprehensive outer distal end noise specific power and).
In the present embodiment, due to being provided with shielded layer in unmasked cable, make the anti-interference ability of unmasked cable
It greatly promotes, interference protection measure in the prior art can not be used in manufacture and use process.For example, in the prior art,
Through reducing the contact area between adjacent cables frequently with outer diameter of cable is done big mode, outer diameter all reaches 8-9mm substantially,
But the outer diameter of cable can be done in the present embodiment it is small, control in 7-7.5mm, save the installation space of cable.
Cable described in the present embodiment and existing UTP CAT.6A parameter comparison are as shown in table 2.
2 the present embodiment of table and UTP CAT.6A Contrast on effect table
Example IV:
In the present embodiment, disclose it is a kind of manufacture embodiment three described in unmasked cable manufacturing method, including with
Lower step:
E): production twisted pair 103: preparing the raw material copper bar of conductor 104, carries out wire drawing to copper bar, then in copper wire outsourcing
It is covered with insulating materials PE, the outside of copper wire conductor 104 is made to be enclosed with insulating layer 105；Then, there is insulating layer 105 by two
104 pair twist of conductor is at twisted pair 103；
F): 4 twisted pairs 103: being mounted in the accommodating chamber 102 of crossing skeleton 101 by production cable core 10 by cable-former,
Cable core 10 is made；
G): addition shielded layer 20 and restrictive coating 30: superscribing shielding band in 10 outside of cable core by way of cladding,
In, the Duplication of cladding is more than or equal to 25%, forms shielded layer 20；Finally, restrictive coating 30 is arranged in the outside of shielded layer 20.
Although the illustrative specific embodiment of the application is described above, in order to the technology of the art
Personnel are it will be appreciated that the application, but the application is not limited only to the range of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change the attached claims limit and determine the application spirit and scope in, one
It cuts and is created using the application of the application design in the column of protection.
Claims (5)
1. a kind of unmasked cable characterized by comprising
Cable core, the cable core include conductor；
Shielded layer, the shielded layer are arranged on the outside of the cable core；
Restrictive coating, the restrictive coating are arranged on the outside of the shielded layer；
Wherein, the shielded layer includes
Metal layer, the metal layer are made of metal foil；
The side of the metal layer is arranged in first insulating layer, first insulating layer；
The other side of the metal layer is arranged in second insulating layer, the second insulating layer.
2. a kind of unmasked cable according to claim 1, wherein the cable core further include:
Accommodating chamber is constituted on the inside of crossing skeleton, the crossing skeleton and the shielded layer, the accommodating chamber provides for the conductor
Accommodation space.
3. a kind of unmasked cable according to claim 1, wherein the conductor at least two, the conductor spiral
It is twisted to form at least one set of twisted pair.
4. a kind of unmasked cable according to claim 1, wherein be enclosed with insulating layer on the outside of the conductor.
5. a kind of unmasked cable according to claim 1, wherein the shielded layer is by the way of cladding or winding
It is wrapped on the outside of the cable core, the shielded layer place of the putting up overlapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317154.3U CN209000563U (en) | 2018-08-16 | 2018-08-16 | A kind of shielding band and the unmasked cable with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317154.3U CN209000563U (en) | 2018-08-16 | 2018-08-16 | A kind of shielding band and the unmasked cable with it |
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| Publication Number | Publication Date |
|---|---|
| CN209000563U true CN209000563U (en) | 2019-06-18 |
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| CN201821317154.3U Active CN209000563U (en) | 2018-08-16 | 2018-08-16 | A kind of shielding band and the unmasked cable with it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922659A (en) * | 2018-08-16 | 2018-11-30 | 张家港特恩驰电缆有限公司 | A kind of shielding band and the unmasked cable with it |
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2018
- 2018-08-16 CN CN201821317154.3U patent/CN209000563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108922659A (en) * | 2018-08-16 | 2018-11-30 | 张家港特恩驰电缆有限公司 | A kind of shielding band and the unmasked cable with it |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.12 Chuangye Road, Jinfeng Town, Zhangjiagang, Suzhou City, Jiangsu Province Patentee after: Shanghai Electric Group tengenchi Technology (Suzhou) Co.,Ltd. Address before: No.12 Chuangye Road, Jinfeng Town, Zhangjiagang, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG TWENTSCHE CABLE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |