CN203882723U - Shielded type data wirecable suitable for being bent repeatedly - Google Patents

Shielded type data wirecable suitable for being bent repeatedly Download PDF

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Publication number
CN203882723U
CN203882723U CN201420265278.7U CN201420265278U CN203882723U CN 203882723 U CN203882723 U CN 203882723U CN 201420265278 U CN201420265278 U CN 201420265278U CN 203882723 U CN203882723 U CN 203882723U
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CN
China
Prior art keywords
layer
polytetrafluoroethylene floor
copper conductor
insulated wire
wound
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.)
Withdrawn - After Issue
Application number
CN201420265278.7U
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Chinese (zh)
Inventor
崔久德
韩志东
陆春良
沈建新
张博
谭言秦
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 Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Publication date
Application filed by Jiangsu Hengtong Wire and Cable Technology Co Ltd filed Critical Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority to CN201420265278.7U priority Critical patent/CN203882723U/en
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Publication of CN203882723U publication Critical patent/CN203882723U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a shielded type data wirecable suitable for being bent repeatedly. The shielded type data wirecable comprises eight metal conductor units and an aramid reinforcer, wherein each metal conductor unit consists of aramid fibers arranged at the center, and an inner conductive layer and an outer conductive layer; four symmetric insulating line pairs are twisted on the outer surface of the aramid reinforcers to form a cable core; a second polytetrafluoroethylene layer wraps a cable core longitudinally, and a plurality of cotton yarns are filled in gaps between the second polytetrafluoroethylene layer and four symmetric insulating line pairs; a cotton fiber wire is wound on the outer surface of the second polytetrafluoroethylene layer to form a buffer sliding layer, the winding direction of the cotton fiber wire is opposite to the twisting direction of the four symmetric insulating line pairs, and a plurality of metal wires are wound on the outer surface of the buffer sliding layer side by side to form a metal shielding layer; and a third polytetrafluoroethylene layer wraps the outer surface of the metal wires in the metal shielding layer. The shielded type data wirecable has small friction coefficient, is flexible and tension resistant, generates no friction static electricity, and can ensure the structure and electrical performance to be stable after frequent moving.

Description

Be applicable to the shadow data cable of alternating bending
Technical field
The utility model relates to a kind of data cable, relates in particular to a kind of shadow data cable of applicable alternating bending.
Background technology
The structure of traditional shield type data cable is by 4 groups of symmetric signal line pair sets, wrapped one deck polyester belt, and the then aluminium-plastic tape of wrapped one deck for shielding, skin is extruded PVC or other plastic covering layers.Symmetric signal is to being to be formed by the insulated wire set of the outer coating one deck high-density polyethylene layer of two copper conductors.Properties of product meet the code requirement of TIA/EIA568B.2.For solving electric property attenuation problem and the electromagnetic interference problem under lower frequency, some product designs are at aluminium-plastic tape outer braid one deck brass wire shielding.For the shield type data cable that requires mobile use, the right conductor of symmetric signal is replaced by many copper stranded conductors.The data cable of this kind of structure can ensure transmission performance in the time fixedly laying and mobile occasion uses.But under frequent mobile, the relative rugged environment of environmental condition such as mechanical arm, the performance reliability of this series products just can not meet the demands, through the movement of hundreds of time, just there will be degradation problem under conductor break, decay increase, interference free performance.In mobile process, between insulation, there is friction between insulation and outer band, shielding, easily produce on the one hand static, cause that signal disturbs, friction also can cause the mechanical and physical performance decline of insulating material frequently simultaneously.General mechanical arm all can require 100,000 above movements, if can not solve the impact of the slip of cable core structure, can not solve the problem of product endurance and shielding stability, just can not ensure the signal transmission demand of mechanical arm.In this point, traditional cable structure is difficult to ensure to meet the requirements.
How to design a kind of data cable, can ensure that in 100,000 above type frequently reciprocating processes, signal transmission ensures to stablize, become the direction that those skilled in the art make great efforts.
Summary of the invention
The utility model provides a kind of shadow data cable of applicable alternating bending, little, the soft stretch-proof of shadow data cable coefficient of friction of this applicable alternating bending, produce, frequently still can ensure constitutionally stable data cable after mobile without frictional static, cable tensile strength improves 50%, counter-bending number of times promotes 300 ~ 500%, 10000 bending attenuation change values and is less than 2%.
For achieving the above object, the technical solution adopted in the utility model is: a kind of shadow data cable of applicable alternating bending, comprise: eight copper conductor unit and aramid fiber reinforcement, this copper conductor unit outer surface is coated with insulation polypropylene layer, described copper conductor unit comprise be positioned at the aramid fiber at center, by the some stranded inner conducting layers that form in the first copper conductor of aramid fiber outer surface, form outer conductor layer by some the second copper conductors are stranded in inner conducting layer outer surface;
The stranded formation first, second, third between two of described eight copper conductor unit and the 4th symmetrical insulated wire to and separately outer surface be all surrounded with the first teflin tape, described first, second, third and the 4th symmetrical insulated wire strand form cable core in described aramid fiber reinforcement outer surface;
The described cable core outer surface of the vertical bag of one second polytetrafluoroethylene floor, described the second polytetrafluoroethylene floor and first, second, third and the 4th symmetrical insulated wire between gap-fill have some cotton yarns;
One cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, this cotton fiber line winding direction and first, second, third and the 4th symmetrical insulated wire strand opposite direction;
Some one metal wires are wound in abreast described buffering sliding layer outer surface and form metal screen layer, in this metal screen layer, wire outer surface is all surrounded with the 3rd teflin tape, and this 3rd polytetrafluoroethylene belt winding direction is contrary with described cotton fiber line winding direction;
One external sheath layer is coated on described the 3rd polytetrafluoroethylene floor outer surface.
In technique scheme, further improve technical scheme as follows:
In such scheme, described cotton fiber line is dredged and is around in described the second polytetrafluoroethylene floor outer surface.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model is applicable to the shadow data cable of alternating bending, its first, second, third and the 4th symmetrical insulated wire outer surface separately is all surrounded with to the first teflin tape stranded formation cable core, the described cable core outer surface of the vertical bag of the second polytetrafluoroethylene floor, in BENDING PROCESS frequently, overcome first, second, third and the 4th symmetrical insulated wire and separately the distance between copper conductor unit and pitch change, thereby cause the change of electric property, and frequently in BENDING PROCESS, first, second, the third and fourth symmetrical insulated wire is all surrounded with the first teflin tape to outer surface separately, and the second polytetrafluoroethylene floor is by the coated symmetrical insulated wire pair with four the first teflin tapes of vertical packet mode, due to the first teflin tape and the second polytetrafluoroethylene floor, to have coefficient of friction low, intensity is high, corrosion-resistant, good insulation preformance, the coefficient of friction of this band is 0.04, it is the minimum material of coefficient of friction in current solid material, and the mode by vertical bag before metal screen layer is coated, reduce the increase of the frictional force causing due to the overlap joint of lapping structure generation, while making frequent bending, the structural change of cable core impact drops to minimum, secondly, be not easy to produce static owing to reducing frictional force and teflin tape, also greatly reduced the generation of static, improve performance reliability and fail safe.
2. the utility model is applicable to the shadow data cable of alternating bending, the second polytetrafluoroethylene floor and first described in it, second, the third and fourth symmetrical insulated wire between gap-fill have some cotton yarns, one cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, this cotton fiber line winding direction and first, second, the third and fourth symmetrical insulated wire strand opposite direction, some one metal wires are wound in described buffering sliding layer outer surface and form metal screen layer, in this metal screen layer, wire is wound around contrary with described cotton fiber line abreast, while ensureing bending, copper wire has enough shift positions and does not produce to stretch and cause broken string, between copper wire and insulation sliding layer, more easily slide simultaneously and do not produce electrostatic interference, this structure can ensure the pliability of cable, also ensured the shield effectiveness after frequent bending.
3. the utility model is applicable to the shadow data cable of alternating bending, between described cable core and external sheath layer, be disposed with the second polytetrafluoroethylene floor, one cotton fiber line is wound in described the second polytetrafluoroethylene floor outer surface and forms buffering sliding layer, some one metal wires are wound in abreast buffering sliding layer and form metal screen layer, in one this metal screen layer, wire outer surface is all surrounded with the 3rd teflin tape, and this 3rd polytetrafluoroethylene belt winding direction is contrary with described cotton fiber line winding direction; It avoids, in the reciprocating motion of cable, between oversheath and screen, producing electrostatic interference, has improved electric property; Simultaneously, the performance of teflin tape is soft, smooth, can not have influence on the pliability of cable, and smooth surface makes between cable core, metal screen layer and outer jacket, easily to produce and slide in BENDING PROCESS, reduce the stretching of external force to cable, increase the service life.
4. the utility model is applicable to the shadow data cable of alternating bending, its copper conductor unit comprise be positioned at the aramid fiber at center, by the some stranded inner conducting layers that form in the first copper conductor of aramid fiber outer surface, form outer conductor layer by some the second copper conductors are stranded in inner conducting layer outer surface, improve tensile strength, ensured aramid fiber stablizing in construction of cable center; First, second, third and the 4th symmetrical insulated wire strand in one aramid fiber reinforcement outer surface form cable core; Ensured that the construction of cable is stable, made the tensile strength of product improve 50%, counter-bending number of times promotes 300 ~ 500%, 10000 bending attenuation change values and is less than 2%.
5. the utility model is applicable to the shadow data cable of alternating bending, its cable core stranding direction, resilient coating winding direction, screen direction are contrary successively, form the disc of opposing parallel, in the time of bending, be unlikely to embed internal layer and affect the relative sliding between different coverings, thereby the pulling force that reduces cable core, has improved bending resistance.Different polytetrafluoroethylene band lapping directions are contrary with stranding or the wire winding direction of internal layer, can ensure the rounding of structure.Make the force of sliding friction between different layers be reduced to minimum, the destruction to the construction of cable while reducing cable bend, thus improve counter-bending characteristic, attenuation change rate while reducing frequent bending.
Brief description of the drawings
Accompanying drawing 1 is the shadow data cable structure schematic diagram of the applicable alternating bending of the utility model;
Accompanying drawing 2 is the utility model buffering sliding layer and metal screen layer structural representation;
Accompanying drawing 3 is A-A cross-sectional view in accompanying drawing 2;
Accompanying drawing 4 is the utility model wire and the 3rd polytetrafluoroethylene floor structural representation;
Accompanying drawing 5 is the utility model copper conductor cellular construction schematic diagram.
In above accompanying drawing: 1, copper conductor unit; 2, insulation polypropylene layer; 3, the first symmetrical insulated wire pair; 4, the second symmetrical insulated wire pair; 5, the 3rd symmetrical insulated wire pair; 6, the 4th symmetrical insulated wire pair; 7, the first teflin tape; 8, cable core; 9, the second polytetrafluoroethylene floor; 10, cotton yarn; 12, buffering sliding layer; 13, wire; 14, metal screen layer; 15, the 3rd polytetrafluoroethylene floor; 16, external sheath layer; 17, cotton fiber line; 18, polyester belt; 19, wire sheathing; 20, aramid fiber; 21, aramid fiber reinforcement; 22, the first copper conductor; 23, the second copper conductor.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of shadow data cable of applicable alternating bending, comprise: eight copper conductor unit 1 and aramid fiber reinforcement 21, this copper conductor unit 1 outer surface is coated with insulation polypropylene layer 2, described copper conductor unit 1 comprise be positioned at the aramid fiber 20 at center, by the some stranded inner conducting layers that form in the first copper conductor 22 of aramid fiber 20 outer surfaces, form outer conductor layer by some the second copper conductors 23 are stranded in inner conducting layer outer surface;
The stranded formation first, second, third between two of described eight copper conductor unit 1 and the 4th symmetrical insulated wire to 3,4,5,6 and separately outer surface be all surrounded with the first teflin tape 7, described first, second, third and the 4th symmetrical insulated wire strandedly form cable cores 8 in described aramid fiber reinforcement 21 outer surfaces to 3,4,5,6;
Described cable core 8 outer surfaces of the vertical bag of one second polytetrafluoroethylene floor 9, described the second polytetrafluoroethylene floor 9 and first, second, third and the 4th symmetrical insulated wire gap-fill between 3,4,5,6 is had to some cotton yarns 10;
In BENDING PROCESS frequently, overcome first, second, third and the 4th symmetrical insulated wire and separately the distance between copper conductor unit and pitch change, thereby cause the change of electric property, and frequently in BENDING PROCESS, first, second, the third and fourth symmetrical insulated wire is all surrounded with the first teflin tape to outer surface separately, and the second polytetrafluoroethylene floor is by the coated symmetrical insulated wire pair with four the first teflin tapes of vertical packet mode, due to the first teflin tape and the second polytetrafluoroethylene floor, to have coefficient of friction low, intensity is high, corrosion-resistant, good insulation preformance, the coefficient of friction of this band is 0.04, it is the minimum material of coefficient of friction in current solid material, and the mode by vertical bag before metal screen layer is coated, reduce the increase of the frictional force causing due to the overlap joint of lapping structure generation, while making frequent bending, the structural change of cable core impact drops to minimum, secondly, be not easy to produce static owing to reducing frictional force and teflin tape, also greatly reduced the generation of static, improve performance reliability and fail safe,
One cotton fiber line 17 be wound in described second polytetrafluoroethylene floor 9 outer surfaces form buffering sliding layers 12, these cotton fiber line 17 winding directions with first, second, third and the 4th symmetrical insulated wire contrary to 3,4,5,6 direction of lays; While ensureing bending, copper wire has enough shift positions and does not produce to stretch and cause broken string, between copper wire and insulation sliding layer, more easily slide simultaneously and do not produce electrostatic interference, this structure can ensure the pliability of cable, has also ensured the shield effectiveness after frequent bending;
Some one metal wires 13 are wound in abreast described buffering sliding layer 12 outer surfaces and form metal screen layer 14, in this metal screen layer 14, wire 13 outer surfaces are all surrounded with the 3rd teflin tape 15, and these the 3rd teflin tape 15 winding directions are contrary with described cotton fiber line 17 winding directions; It avoids, in the reciprocating motion of cable, between oversheath and screen, producing electrostatic interference, has improved electric property; Simultaneously, the performance of teflin tape is soft, smooth, can not have influence on the pliability of cable, and smooth surface makes between cable core, metal screen layer and outer jacket, easily to produce and slide in BENDING PROCESS, reduce the stretching of external force to cable, increase the service life;
One external sheath layer 16 is coated on described the 3rd polytetrafluoroethylene floor 15 outer surfaces.Between metal screen layer and oversheath, form buffering, avoid, in the reciprocating motion of cable, between oversheath and screen, producing electrostatic interference.Simultaneously, the performance of teflin tape is soft, smooth, can not have influence on the pliability of cable, technology controlling and process during by sheathing, smooth surface makes between cable core and sheath, easily to produce and slide in BENDING PROCESS, reduce the stretching of external force to copper conductor and tincopper fuse wire braided armor, increase the service life.
Above-mentioned cotton fiber line 17 is dredged and is around in described the second polytetrafluoroethylene floor 9 outer surfaces.
Performance test data is as shown in table 1:
Table 1
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.

Claims (4)

1. the shadow data cable of an applicable alternating bending, it is characterized in that: comprising: eight copper conductor unit (1) and aramid fiber reinforcement (21), this copper conductor unit (1) outer surface is coated with insulation polypropylene layer (2), described copper conductor unit (1) comprise be positioned at the aramid fiber (20) at center, by the some stranded inner conducting layers that form in first copper conductor (22) of aramid fiber (20) outer surface, form outer conductor layer by some the second copper conductors (23) are stranded in inner conducting layer outer surface;
Described eight copper conductor unit (1) stranded formation first, second, third between two and the 4th symmetrical insulated wire to (3,4,5,6) and separately outer surface be all surrounded with the first teflin tape (7), described first, second, third and the 4th symmetrical insulated wire to (3,4,5,6) stranded in described aramid fiber reinforcement (21) outer surface form cable core (8);
The vertical bag of one second polytetrafluoroethylene floor (9) described cable core (8) outer surface, described the second polytetrafluoroethylene floor (9) and first, second, third and the 4th symmetrical insulated wire gap-fill between (3,4,5,6) is had to some cotton yarns (10);
One cotton fiber line (17) be wound in described the second polytetrafluoroethylene floor (9) outer surface form buffering sliding layer (12), this cotton fiber line (17) winding direction with first, second, third and the 4th symmetrical insulated wire contrary to (3,4,5,6) direction of lay;
Some one metal wires (13) are wound in abreast described buffering sliding layer (12) outer surface and form metal screen layer (14), in this metal screen layer (14), wire (13) outer surface is all surrounded with the 3rd teflin tape (15), and this 3rd teflin tape (15) winding direction is contrary with described cotton fiber line (17) winding direction;
One external sheath layer (16) is coated on described the 3rd polytetrafluoroethylene floor (15) outer surface.
2. the shadow data cable of applicable alternating bending according to claim 1, is characterized in that: described cotton fiber line (17) is dredged and is around in described the second polytetrafluoroethylene floor (9) outer surface.
3. the shadow data cable of applicable alternating bending according to claim 1, is characterized in that: described the 3rd teflin tape (15) is wound in the stack of wire (13) junction and places.
4. the shadow data cable of applicable alternating bending according to claim 1, is characterized in that: described aramid fiber reinforcement (21) diameter is 200D.
CN201420265278.7U 2014-05-22 2014-05-22 Shielded type data wirecable suitable for being bent repeatedly Withdrawn - After Issue CN203882723U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420265278.7U CN203882723U (en) 2014-05-22 2014-05-22 Shielded type data wirecable suitable for being bent repeatedly

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Application Number Priority Date Filing Date Title
CN201420265278.7U CN203882723U (en) 2014-05-22 2014-05-22 Shielded type data wirecable suitable for being bent repeatedly

Publications (1)

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CN203882723U true CN203882723U (en) 2014-10-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036873A (en) * 2014-05-22 2014-09-10 江苏亨通线缆科技有限公司 Shielded data cable suitable for repeated bending
CN107644705A (en) * 2016-07-21 2018-01-30 法兰克工业管道有限两合公司 Protective case at least one electric conductor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036873A (en) * 2014-05-22 2014-09-10 江苏亨通线缆科技有限公司 Shielded data cable suitable for repeated bending
CN104036873B (en) * 2014-05-22 2017-12-01 江苏亨通线缆科技有限公司 It is adapted to the shielding data cable of alternating bending
CN107644705A (en) * 2016-07-21 2018-01-30 法兰克工业管道有限两合公司 Protective case at least one electric conductor
CN107644705B (en) * 2016-07-21 2021-11-05 法兰克工业管道有限两合公司 Protective sheath for at least one electrical conductor

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AV01 Patent right actively abandoned

Granted publication date: 20141015

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