CN105845264A - Zipper bushing internal shielding railway digital signal cable - Google Patents

Zipper bushing internal shielding railway digital signal cable Download PDF

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Publication number
CN105845264A
CN105845264A CN201610297020.9A CN201610297020A CN105845264A CN 105845264 A CN105845264 A CN 105845264A CN 201610297020 A CN201610297020 A CN 201610297020A CN 105845264 A CN105845264 A CN 105845264A
Authority
CN
China
Prior art keywords
layer
cable
zip mode
digital signal
sheath
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610297020.9A
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Chinese (zh)
Inventor
沈小平
周江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Tongding Optic Electronic Stock Co Ltd
Original Assignee
Jiangsu Tongding Optic Electronic Stock Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Tongding Optic Electronic Stock Co Ltd filed Critical Jiangsu Tongding Optic Electronic Stock Co Ltd
Priority to CN201610297020.9A priority Critical patent/CN105845264A/en
Publication of CN105845264A publication Critical patent/CN105845264A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/005Quad constructions
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0216Two layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0275Disposition of insulation comprising one or more extruded layers of insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/226Helicoidally wound metal wires or tapes

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention provides a zipper bushing internal shielding railway digital signal cable comprising a cable core and a protective layer which wraps the external part of the cable core. The cable core comprises at least one shielding four-wire set. The shielding four-wire set comprises four twisted single insulating wires of different colors. The external part of the single insulating wires is provided with a yarning layer, an internal side non-hygroscopic insulating layer, a zipper bushing shielding layer and an external side non-hygroscopic insulating layer which are arranged from inside to outside in turn. The protective layer comprises a PET tape wrapping layer, an aluminum sheath layer, an adhesive protective layer, an armored layer and an external sheath layer which are arranged from inside to outside in turn. The zipper bushing shielding layer is adopted so that the production efficiency is high, the quality is stable, installation and disassembling are easy, use is convenient and tensile strength and bending performance are great, and the cable has a high-sensitivity electromagnetic interference shielding function. The cable core is externally provided with the protective layer so that the cable is enabled to have excellent shielding, temperature-resistant, moisture-proof, compression-resistant and animal biting preventing functions, and the requirements of high-speed railway and heavy load traction for the cable can be met.

Description

A kind of zip mode sleeve pipe internal screening railway digital signal cable
Technical field
The invention belongs to railway digital signal cable technical field, especially relates to a kind of zip mode set Tube inner shield railway digital signal cable.
Background technology
Along with the repeatedly speed-raising of railway and going into operation successively of Line for Passenger Transportation, the high-speed railway of China Tremendous development will be obtained.Security and comfortableness are had higher requirement by high-speed railway, In existing internal screening railway digital signal cable production process, the cladding of shielding mainly use wrapped or The mode of vertical bag, the internal screening railway digital signal cable using both modes to produce, often occur The quality problems that copper strips broken belt or copper strips seam crossing split, owing to can not find copper strips broken belt point and copper in time Band seam crossing splitting point, therefore, extremely difficult when searching broken belt point or seam crossing cracking point, and Shielding quad is after pullling repeatedly, it is also difficult to ensure its quality, especially for For the most unskilled operative employee, waste time and energy especially, increase the manufacturing cost of cable.
Summary of the invention
In view of this, the invention is defect of the prior art when being intended to overcome upper, proposes a kind of slide fastener Formula sleeve pipe internal screening railway digital signal cable.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of zip mode sleeve pipe internal screening railway digital signal cable, including cable core and be coated on outside cable core The sheath in portion;Described cable core includes that at least one shields quad, and this shielding quad includes mutually stranded The insulated single wire of four different colours, is sequentially provided with bundle layer, interior from the inside to the outside outside described insulated single wire Side non-hygroscopic insulating barrier, zip mode liner shields layer and outside non-hygroscopic insulating barrier;Described sheath by Interior to including PET strip lapping layer, aluminium sheath layer, bonding sheath, armor and external sheath layer successively outward.
Further, described insulated single wire by copper conductor and is coated on the insulating barrier outside this copper conductor and forms.
Further, described insulating barrier is the physical blowing structure that skin-bubble-skin is three-layer co-extruded.
Further, described zip mode liner shields layer includes the crocheted net of copper free wire crocheted of inner side And the polyester multifilament braid outside crocheted net, set along described zip mode liner shields layer length direction It is equipped with slide fastener.
Further, it is provided with between described inner side non-hygroscopic insulating barrier and zip mode liner shields layer and lets out Current wire.
Further, described bonding sheath is bonding sheath.
Further, described external sheath layer uses outer protective polyethylene set.
Relative to prior art, the invention has the advantage that
1) using zip mode liner shields layer, production efficiency is high, steady quality, it is easy to installation and removal, Easy to use.Simultaneously so that cable flexibility is good, is unlikely to deform, tensile strength and good bending property, There is high-sensitive electromagnetic interference shield function, there is noise reduction, dust-proof, flame-proof abrasion-resistant performance simultaneously.
2) cable core is outside equipped with PET strip lapping layer, aluminium sheath layer, bonding sheath, armor and gathers Ethene oversheath, makes cable have superior shielding, heatproof, protection against the tide, resistance to compression, anti-animal tooth sting function, Meet the requirement to cable of high-speed railway and heavy traction.
Accompanying drawing explanation
The accompanying drawing of the part constituting the invention is used for providing being further appreciated by the invention, The schematic description and description of the invention is used for explaining the invention, is not intended that this The improper restriction of bright creation.In the accompanying drawings:
Fig. 1 is the structural representation of the invention.
Description of reference numerals:
1, shielding quad;2, insulated single wire;3, copper conductor;4, insulating barrier;5, layer is pricked;6、 Inner side non-hygroscopic insulating barrier;7, earial drainage wire;8, zip mode liner shields layer;9, the non-suction in outside Moist insulating barrier;10, PET strip lapping layer;11, aluminium sheath layer;12, bonding sheath;13, armouring Layer;14, oversheath.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in the invention and embodiment Feature can be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached Orientation shown in figure or position relationship, be for only for ease of description the invention and simplify description, and not Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that restriction to the invention.Additionally, term " first ", " second " Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed Or implicitly include one or more this feature.In the description of the invention, unless otherwise Illustrating, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, Can also be to removably connect, or be integrally connected;Can be to be mechanically connected, it is also possible to be electrical connection; Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition Concrete meaning in innovation and creation.
Describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of zip mode sleeve pipe internal screening railway digital signal cable, as it is shown in figure 1, include cable core and It is coated on the sheath outside cable core;Described cable core includes that at least one shields quad 1, this shielding four line The insulated single wire 2 that group 1 includes mutually stranded four piece different colours, described insulated single wire 2 outside by interior extremely It is sequentially provided with outward bundle layer 5, inner side non-hygroscopic insulating barrier 6, zip mode liner shields layer 8 and outside Non-hygroscopic insulating barrier 9;Described sheath includes PET strip lapping layer 10, aluminium sheath layer the most successively 11, bonding sheath 12, armor 13 and external sheath layer 14.Inner side non-hygroscopic insulating barrier 6 with draw Being provided with earial drainage wire 7 between chain type liner shields layer 8, signal transmission is stable, fluctuates little, this cable Anti-electromagnetic interference capability strong.
Described cable core can include two shielding quads 1.Insulated single wire 2 therein is by copper conductor 3 He It is coated on this insulating barrier 4 outside copper conductor 3 to form.Wherein, described insulating barrier 4 is skin-bubble-skin Three-layer co-extruded physical blowing structure.Insulating resistance of cable can be effectively improved, reduce the sending allowance of cable, Reduce the mutual capacitance of cable, thus be greatly improved the security reliability of cable.
Armor 13 uses the wrapped armor in galvanized steel strip gap, and production efficiency is high, low cost of manufacture, Structural strength is high, is unlikely to deform, and cable has higher tensile strength and bending property.It should be noted that, Above-mentioned aluminium sheath layer 11 is possible not only to use aluminium sheath, it is also possible to use composite sheath as required.Viscous Knot sheath generally selects polyethylene bonding sheath.
Above-mentioned zip mode liner shields layer 8 includes crocheted net and the hook of the copper free wire crocheted of inner side Polyester multifilament braid outside knitmesh, is provided with along described zip mode liner shields layer 8 length direction Slide fastener.It should be noted that the zip mode shielded tube that the technology that meets requires can commercially be bought, this Sample can save middle production link, reduces quality of production risk, improves shielding quad production efficiency.
Above-mentioned bonding sheath 12 is bonding sheath, and external sheath layer 14 uses outer protective polyethylene set.
Make this cable time: first cut-and-dried zip mode shielded tube is contained in special threading device Upper standby, then the insulated single wire of four different colours is twisted into quad, and at it outside around wrapping yarn 5 and cladding inside non-moist insulating barrier 6, then earial drainage wire 7 is arranged on inner side non-hygroscopic insulation On layer 6, then by threading device, zip mode liner shields layer 8 is directly sleeved on and is coated with bundle yarn 5 and interior In the quad of the non-moist insulating barrier 6 in side, and disposably complete suit.Confirm zip mode shielded tube Slide fastener be in closure state after, non-moist insulating barrier outside the outer cladding the most again of zip mode liner shields layer 8 9, make a shielding quad 1, afterwards several shielding quads 1 are made by twisting cable core together, then Be coated with successively outside cable core PET strip lapping layer 10, aluminium sheath layer 11, bonding sheath 12, armor 13, And oversheath 14.
The invention uses zip mode liner shields layer, and production efficiency is high, steady quality, it is easy to install And dismounting, easy to use.Simultaneously so that cable flexibility is good, is unlikely to deform, tensile strength and bending Performance is good, has high-sensitive electromagnetic interference shield function, has noise reduction, dust-proof, flame-proof abrasion-resistant simultaneously Performance.The sheath that cable core is arranged makes cable have superior shielding, heatproof, protection against the tide, resistance to compression, anti-animal Tooth stings function, meets the requirement to cable of high-speed railway and heavy traction.
The foregoing is only the preferred embodiment of the invention, not in order to limit present invention wound Make, within all spirit in the invention and principle, any modification, equivalent substitution and improvement made Deng, within should be included in the protection domain of the invention.

Claims (7)

1. a zip mode sleeve pipe internal screening railway digital signal cable, it is characterised in that: include cable core And it is coated on the sheath outside cable core;Described cable core includes that at least one shields quad, this shielding four Line group includes the insulated single wire of mutually stranded four piece different colours, depends on from the inside to the outside outside described insulated single wire Secondary be provided with bundle layer, inner side non-hygroscopic insulating barrier, zip mode liner shields layer and outside non-hygroscopic exhausted Edge layer;Described sheath includes PET strip lapping layer, aluminium sheath layer, bonding sheath, armour the most successively Dress layer and external sheath layer.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 1, It is characterized in that: described insulated single wire is by copper conductor and is coated on the insulating barrier outside this copper conductor and forms.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 2, It is characterized in that: described insulating barrier is the physical blowing structure that skin-bubble-skin is three-layer co-extruded.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 1, It is characterized in that: described zip mode liner shields layer includes the crocheted net of the copper free wire crocheted of inner side And the polyester multifilament braid outside crocheted net, set along described zip mode liner shields layer length direction It is equipped with slide fastener.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 1, It is characterized in that: be provided with between described inner side non-hygroscopic insulating barrier and zip mode liner shields layer and let out Current wire.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 1, It is characterized in that: described bonding sheath is bonding sheath.
A kind of zip mode sleeve pipe internal screening railway digital signal cable the most according to claim 1, It is characterized in that: described external sheath layer uses outer protective polyethylene set.
CN201610297020.9A 2016-05-06 2016-05-06 Zipper bushing internal shielding railway digital signal cable Pending CN105845264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610297020.9A CN105845264A (en) 2016-05-06 2016-05-06 Zipper bushing internal shielding railway digital signal cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610297020.9A CN105845264A (en) 2016-05-06 2016-05-06 Zipper bushing internal shielding railway digital signal cable

Publications (1)

Publication Number Publication Date
CN105845264A true CN105845264A (en) 2016-08-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108666042A (en) * 2018-03-29 2018-10-16 江苏通鼎光电科技有限公司 Internal screening railway digital signal cable
CN109411116A (en) * 2018-10-29 2019-03-01 通鼎互联信息股份有限公司 A kind of high fire-retardance railway signal cable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391838A (en) * 1993-05-25 1995-02-21 The Zippertubing Co. Flexible double electrical shielding jacket
US7235737B2 (en) * 2003-03-24 2007-06-26 Federal Mugul Systems Protection Group Electromagnetic shielding sleeve which is intended, for example, to protect bundles of cables for use in aeronautics
CN102800398A (en) * 2012-08-14 2012-11-28 江苏通鼎光电科技有限公司 Copper strip welded embossing type internal shielding railway digital signal cable
CN202888740U (en) * 2012-11-02 2013-04-17 深圳市骏鼎达科技有限公司 Casing pipe
CN203165533U (en) * 2013-03-12 2013-08-28 吉林安德电化科技有限公司 Zipper-type shielding sleeve pipe
CN205582613U (en) * 2016-05-06 2016-09-14 江苏通鼎光电科技有限公司 Zip fastener formula sleeve pipe internal shield railway digital signal cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391838A (en) * 1993-05-25 1995-02-21 The Zippertubing Co. Flexible double electrical shielding jacket
US7235737B2 (en) * 2003-03-24 2007-06-26 Federal Mugul Systems Protection Group Electromagnetic shielding sleeve which is intended, for example, to protect bundles of cables for use in aeronautics
CN102800398A (en) * 2012-08-14 2012-11-28 江苏通鼎光电科技有限公司 Copper strip welded embossing type internal shielding railway digital signal cable
CN202888740U (en) * 2012-11-02 2013-04-17 深圳市骏鼎达科技有限公司 Casing pipe
CN203165533U (en) * 2013-03-12 2013-08-28 吉林安德电化科技有限公司 Zipper-type shielding sleeve pipe
CN205582613U (en) * 2016-05-06 2016-09-14 江苏通鼎光电科技有限公司 Zip fastener formula sleeve pipe internal shield railway digital signal cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108666042A (en) * 2018-03-29 2018-10-16 江苏通鼎光电科技有限公司 Internal screening railway digital signal cable
CN109411116A (en) * 2018-10-29 2019-03-01 通鼎互联信息股份有限公司 A kind of high fire-retardance railway signal cable
CN109411116B (en) * 2018-10-29 2020-04-21 通鼎互联信息股份有限公司 High flame-retardant railway signal cable

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Application publication date: 20160810

RJ01 Rejection of invention patent application after publication