CN209708667U - A kind of multiple shield cable - Google Patents
A kind of multiple shield cable Download PDFInfo
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- CN209708667U CN209708667U CN201920726498.8U CN201920726498U CN209708667U CN 209708667 U CN209708667 U CN 209708667U CN 201920726498 U CN201920726498 U CN 201920726498U CN 209708667 U CN209708667 U CN 209708667U
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- core
- tube
- protective case
- shielded
- shielding
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Abstract
The utility model discloses a kind of multiple shield cables, including protective case and the support frame being set to inside protective case, support frame includes the support tube coaxial with protective case, the outer peripheral surface of support tube is evenly arranged with three pieces of isolation boards, isolation board extends along the length direction of support tube, shielded-plate tube is equipped between every two adjacent isolation board, one group of core is equipped in each shielded-plate tube, shielding filler is equipped in the inner wall of shielded-plate tube and the gap of core outer wall, core includes two conducting wires in the mutual spiral winding setting of twisted pair line type, core outer cover is equipped with type insulating wrapping strip, separated-shielding band is equipped with outside type insulating wrapping strip.By the setting of support frame, the mechanical property of cable itself is on the one hand improved, on the other hand core is isolated by the isolation board of support frame, reduces the interference generated between core；By always shielding band, separated-shielding band, the conducting wire for shielding filler, twisted pair construction, the anti-interference ability of cable can be improved.
Description
Technical field
The utility model relates to field of cable technology, more particularly, to a kind of multiple shield cable.
Background technique
As residential housing obtains higher and higher, the requirement for cable is also increased accordingly, and wire and cable has become economy
One of most important basic product in construction.There are electric currents in a piece signal conductor, it is bound to externally generate electromagnetic wave, and this
The transmission of Electromagnetic Interference to other signals is planted, just at noise.This interference is reduced, shielded cable occurs in production.
Shielded cable coats one layer of metal net outside conducting wire mostly in the prior art, but if metal knitted using only one layer
Net, shield effectiveness is bad, needs preferable shield effectiveness then to use double shield structure in certain occasions, but shielded layer is more
When, shielded layer itself may be then broken due to cable stress, so that influencing shield effectiveness even influences the function of cable itself.
The Chinese patent for being CN208589284U referring to Authorization Notice No., the technical solution propose a kind of tension shielding electricity
Cable；Including flexible damping layer, core and the restrictive coating being sequentially distributed from the inside to the outside；Center air cushion is equipped with inside flexible damping layer；
Core is attached on the outside of flexible damping layer, is additionally provided with reinforcement steel core between core, and core is by successively including conductor, nothing except interior
Machine mineral insulation layer, mica layer and shielded layer；Gap filling between core and restrictive coating has inorganic mineral oxygen barrier material, line
The gap of core and flexible damping layer is also filled with inorganic mineral oxygen barrier material；Water blocking layer is equipped on the outside of restrictive coating；Restrictive coating opens up
It is fluted, spring is equipped in groove；It is equipped with the first armor on the outside of water blocking layer, is equipped with the second armor on the outside of the first armor,
The outer side of second armor is equipped with polyolefin housing.
A kind of tension shielding cable proposed in above-mentioned prior art, structure is excessively complicated, by reinforcing steel
The tensile capacity of core reinforced cable, but reinforce steel core itself and be difficult to be accurately positioned in production, in addition, there is no to cable
Resistance to compression, bending resistance, antitorque ability make specific improvement.Shielded cable i.e. in the prior art is difficult to while screen with higher
Cover effect and mechanical property.
Utility model content
The purpose of the utility model is to provide a kind of multiple shield cable, make its tool while with preferable shield effectiveness
There is good mechanical property.
The utility model have the technical scheme that a kind of multiple shield cable, including protective case with
And it is set to the support frame inside the protective case, support frame as described above includes the support tube coaxial with the protective case, the branch
The outer peripheral surface of stay tube is evenly arranged with three pieces of isolation boards, and the isolation board extends along the length direction of the support tube, every two
Be equipped with shielded-plate tube between adjacent isolation board, be equipped with one group of core in each shielded-plate tube, the shielding inside pipe wall with
Shielding filler is equipped in the gap of the core outer wall, the core includes two and is arranged in the mutual spiral winding of twisted pair line type
Conducting wire, the core outer cover are equipped with type insulating wrapping strip, are equipped with separated-shielding band outside the type insulating wrapping strip.
By using above-mentioned technical proposal, by the setting of support frame, the mechanical property of cable itself is on the one hand improved,
On the other hand core is isolated by the isolation board of support frame, reduces the interference generated between core；Specifically, due to
Isolation board is three pieces, therefore support frame can enable cable bending resistance with higher, resistance to compression by the stability of triangle
Power, and shielded-plate tube is set between isolation board and protective case, each group of core is isolated, the electricity of its generation is further reduced
Magnetic wave and the extraneous electromagnetic wave entered in shielded-plate tube；By the way that every group of core to be set as to two conducting wires of twisted pair line type, due to logical
It is equal in magnitude to cross the electromagnetic wave that two conducting wires externally generate, contrary, they are superposed to standing wave, cancel out each other, and effectively reduce
Electromagnetic interference, and the interference of outer bound pair conducting wire are externally generated, then by setting separated-shielding band and shielding filler, is further mentioned
Its high anti-interference ability, and shielding filler can also improve the fire resistance of cable.
Be further arranged to: the protective case include by set gradually except interior flame retardant coating, always shield band, liner
Layer, armor and shell.
By using above-mentioned technical proposal, the structure of protective case is illustrated, including always shield band, further improve it
The fire resistance and mechanical property of cable has been respectively increased due to being equipped with flame retardant coating and armor in anti-interference ability.
Be further arranged to: the separated-shielding band and always shielding band are the wire of spiral winding setting.
By using above-mentioned technical proposal, the bending resistance of cable is can be improved in the setting of spiral winding.
Be further arranged to: the shielding filler is the magnesium oxide powder of high compression.
By using above-mentioned technical proposal, the fusing point of magnesia is up to 2800 DEG C, and the fusing point of 1083 DEG C of conductive copper of cooperation makes
Working condition can be kept in the environment more than 1000 DEG C by obtaining cable.
Be further arranged to: the shielded-plate tube includes flexible boot, and the shielding filler is located inside the flexible boot.
The flexibility of cable can be improved due to being equipped with flexible boot by using above-mentioned technical proposal.
It is further arranged to: being equipped with insulating lacquer layer outside the conducting wire.
It avoids interfering so that conducting wire itself has preferable insulating capacity by using above-mentioned technical proposal.
Be further arranged to: the isolation board is equipped with support base far from one end of the support tube, and the support base is along institute
The length direction for stating isolation board extends, and the cross section of the support base is in fan-shaped.
By using above-mentioned technical proposal, the setting of support base is illustrated, cooperate three pieces of isolation boards, so that support frame has
Preferable stability passes through the arc-shaped stability that can increase support base since support base is fan-shaped.
Be further arranged to: being equipped with elastic component inside the support tube, the inner wall of the support base and the protective case it
Between gap in also be provided with elastic component.
By using above-mentioned technical proposal, by the setting of elastic component, the space of buffering is provided for the deformation of support frame, into
And reduce the deformation of core.
In conclusion the advantageous effects of the utility model are as follows: by the setting of support frame, on the one hand improve cable
On the other hand the mechanical property of itself core is isolated by the isolation board of support frame, reduce generated between core it is dry
It disturbs；By always shielding band, separated-shielding band, the conducting wire for shielding filler, twisted pair construction, the anti-interference of cable can be improved
Ability.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model embodiment cross section.
Appended drawing reference: 1, protective case；11, flame retardant coating；12, band is always shielded；13, liner layer；14, armor；15, outer
Shell；2, support frame；21, support tube；22, isolation board；23, support base；24, elastic component；3, shielded-plate tube；31, flexible boot；32, shield
Cover filler；4, core；41, conducting wire；42, insulating lacquer layer；43, type insulating wrapping strip；44, separated-shielding band.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It is a kind of multiple shield cable disclosed by the utility model, including protective case 1 and support frame 2, support referring to Fig. 1
Frame 2 includes the support tube 21 coaxial with protective case 1, and the outer peripheral surface of support tube 21 is evenly arranged with three pieces of isolation boards 22, isolation board
22 along support tube 21 length direction extend.
Every piece of isolation board 22 is equipped with support base 23, length of the support base 23 along isolation board 22 far from one end of support tube 21
Direction extends, and the cross section of support base 23 is in fan-shaped, and one end of evagination is fixed on isolation board 22.Support frame 2 passes through three
Support base 23 is fixed on the inside of protective case 1.The inside of cavity and support tube 21 that support base 23 is crossed with protective case 1 is all provided with
Flexible part 24, elastic component 24 are preferably rubber.
Shielded-plate tube 3 is equipped between every two adjacent isolation board 22 and the inner wall of protective case 1, shielded-plate tube 3 includes flexibility
Set 31, the outer wall of flexible boot 31 fits on the outer wall of isolation board 22, the inner wall of protective case 1 and support tube 21.
Core 4 is equipped with inside flexible boot 31, core 4 includes two conducting wires in the mutual spiral winding setting of twisted pair line type
41, insulating lacquer layer 42 is equipped with outside conducting wire 41.4 outer cover of core is equipped with type insulating wrapping strip 43, is equipped with split screen outside type insulating wrapping strip 43
Band 44 is covered, separated-shielding band 44 is the wire of spiral winding setting, and wire is preferably red metal silk.
Filled with shielding filler 32 between the inner wall of flexible boot 31 and the outer wall of separated-shielding band 44, shielding filler 32 is height
The powdered magnesia of compression.
Protective case 1 includes flame retardant coating 11, total the shielding band 12, liner layer 13, armor 14 by setting gradually except interior
With shell 15.Wherein, always shielding band 12 is metal net, and metal net is preferably red metal mesh grid.
It the implementation principle of the present embodiment and has the beneficial effect that
By the way that support frame 2 is arranged, since support frame 2 is supported with three pieces of isolation boards 22, on the one hand cooperate elastic filler
The mechanical property of cable itself is improved, on the other hand core 4 is isolated by the isolation board 22 of support frame 2, cooperates total screen
Cover band 12, separated-shielding band 44, the conducting wire 41 for shielding filler 32 and twisted pair construction, reduce generated between core 4 it is dry
It disturbs；By always shielding band 12, separated-shielding band 44, the conducting wire 41 for shielding filler 32, twisted pair construction, reduces conducting wire 41 and receive
The electromagnetic interference that external electromagnetic interference and conducting wire 41 itself issues, has preferable shield effectiveness.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of multiple shield cable, it is characterised in that: including protective case (1) and be set to the protective case (1) inside
Support frame (2), support frame as described above (2) include the support tube (21) coaxial with the protective case (1), the support tube (21) it is outer
Circumferential surface is evenly arranged with three pieces of isolation boards (22), and the isolation board (22) extends along the length direction of the support tube (21), often
It is equipped with shielded-plate tube (3) between two adjacent isolation boards (22), is equipped with one group of core (4) in each shielded-plate tube (3),
Shielding filler (32) is equipped in the inner wall of the shielded-plate tube (3) and the gap of the core (4) outer wall, the core (4) includes
Two conducting wires (41) in the mutual spiral winding setting of twisted pair line type, core (4) outer cover are equipped with type insulating wrapping strip (43), institute
It states and is equipped with separated-shielding band (44) outside type insulating wrapping strip (43).
2. a kind of multiple shield cable according to claim 1, it is characterised in that: the protective case (1) include by it is interior it
The flame retardant coating (11) that sets gradually outside always shields band (12), liner layer (13), armor (14) and shell (15).
3. a kind of multiple shield cable according to claim 2, it is characterised in that: the separated-shielding band (44) is spiral
The wire of setting is wound, total shielding band (12) is metal net.
4. a kind of multiple shield cable according to claim 1, it is characterised in that: the shielding filler (32) is high compression
Magnesium oxide powder.
5. a kind of multiple shield cable according to claim 1, it is characterised in that: the shielded-plate tube (3) includes flexible boot
(31), it is internal to be located at the flexible boot (31) for the shielding filler (32).
6. a kind of multiple shield cable according to claim 1, it is characterised in that: be equipped with insulation outside the conducting wire (41)
Paint layer (42).
7. a kind of multiple shield cable according to claim 6, it is characterised in that: the isolation board (22) is far from the branch
One end of stay tube (21) is equipped with support base (23), and the support base (23) extends along the length direction of the isolation board (22), institute
The cross section of support base (23) is stated in fan-shaped.
8. a kind of multiple shield cable according to claim 7, it is characterised in that: be equipped with bullet inside the support tube (21)
Property part (24) also is provided with elastic component (24) in the gap between the support base (23) and the inner wall of the protective case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726498.8U CN209708667U (en) | 2019-05-20 | 2019-05-20 | A kind of multiple shield cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726498.8U CN209708667U (en) | 2019-05-20 | 2019-05-20 | A kind of multiple shield cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209708667U true CN209708667U (en) | 2019-11-29 |
Family
ID=68651055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920726498.8U Active CN209708667U (en) | 2019-05-20 | 2019-05-20 | A kind of multiple shield cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209708667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403093A (en) * | 2020-04-24 | 2020-07-10 | 浙江天杰实业股份有限公司 | Control cable for smart home |
-
2019
- 2019-05-20 CN CN201920726498.8U patent/CN209708667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403093A (en) * | 2020-04-24 | 2020-07-10 | 浙江天杰实业股份有限公司 | Control cable for smart home |
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