CN104036869A - Stretch- and fatigue-resistant shielding soft data cable - Google Patents
Stretch- and fatigue-resistant shielding soft data cable Download PDFInfo
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- CN104036869A CN104036869A CN201410217427.7A CN201410217427A CN104036869A CN 104036869 A CN104036869 A CN 104036869A CN 201410217427 A CN201410217427 A CN 201410217427A CN 104036869 A CN104036869 A CN 104036869A
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- 239000004020 conductor Substances 0.000 claims abstract description 72
- 239000010410 layer Substances 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 39
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 34
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 34
- 229920000742 Cotton Polymers 0.000 claims abstract description 27
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 24
- 239000012791 sliding layer Substances 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 230000003139 buffering effect Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 7
- 239000004760 aramid Substances 0.000 abstract 2
- 229920003235 aromatic polyamide Polymers 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000002910 structure generation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The invention discloses a stretch- and fatigue-resistant shielding soft data cable which comprises eight metal conductor units and an aramid reinforcement element, wherein the metal conductor units comprise aramid fiber arranged at the centers, inner conducting layers and outer conductor layers; four symmetric insulated wire pairs are twisted around the outer surface of the aramid reinforcement element to form a cable core; a second polytetrafluoroethylene layer longitudinally wraps the outer surface of the cable core, gaps between the second polytetrafluoroethylene layer and the four symmetric insulated wire pairs are filled with a plurality of cotton yarns, a cotton fiber thread is wound around the outer surface of the second polytetrafluoroethylene layer to form a buffer sliding layer, the winding direction of the cotton fiber thread is opposite to the twisting direction of the four symmetric insulated wire pairs, a plurality of metal wires are wound around the outer surface of the buffer sliding layer in parallel to form a metal shielding layer, the winding direction of the metal wires in the metal shielding layer is opposite to that of the cotton fiber thread, and a third polytetrafluoroethylene layer wraps the outer surface of the metal shielding layer. The stretch- and fatigue-resistant shielding soft data cable has the advantages of low friction coefficient, softness, stretch resistance and no friction static generation, and stable structural and electrical performance after frequent moving still can be guaranteed.
Description
Technical field
The present invention relates to a kind of data cable, relate in particular to a kind of stretch-proof endurance type shielding soft data cable.
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 invention provides a kind of stretch-proof endurance type shielding soft data cable, this stretch-proof endurance type shields little, the soft stretch-proof of soft data cable coefficient of friction, produces, frequently after movement, still can ensure constitutionally stable shielding high-speed data cable without frictional static, cable tensile strength improves 300%, counter-bending number of times promotes 300 ~ 500%, 100000 bending attenuation change values and is less than 5%.
For achieving the above object, the technical solution used in the present invention is: a kind of stretch-proof endurance type shielding soft data cable, comprise: eight metallic conductor unit and aramid fiber reinforcement, this metallic conductor unit outer surface is coated with insulation polypropylene layer, described metallic conductor unit comprises the aramid fiber that is positioned at center, by the some stranded inner conducting layers that form in the gun-metal conductor of aramid fiber outer surface, form outer conductor layer by some oxygen-free copper conductors are stranded in inner conducting layer outer surface, described gun-metal conductor diameter is less than oxygen-free copper conductor, in described gun-metal conductor, tin content accounts for 0.4% ~ 0.6%,
The stranded formation first, second, third between two of described eight metallic 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, and in this metal screen layer, wire is wound around contrary with described cotton fiber line;
One the 3rd polytetrafluoroethylene floor is wrapped in described metal screen layer outer surface, and an external sheath layer is coated on described the 3rd polytetrafluoroethylene floor outer surface.
In technique scheme, further improve technical scheme as follows:
1. in such scheme, described cotton fiber line is dredged and is around in described the second polytetrafluoroethylene floor outer surface.
2. in such scheme, described gun-metal conductor is 6 ~ 8:10 with the diameter ratio of oxygen-free copper conductor.
3. in such scheme, described aramid fiber reinforcement diameter is 190 ~ 210D.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. stretch-proof endurance type shielding soft data cable of the present invention, 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 metallic 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. stretch-proof endurance type shielding soft data cable of the present invention, 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. stretch-proof endurance type shielding soft data cable of the present invention, 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, one the 3rd polytetrafluoroethylene floor is wrapped in described metal screen layer outer surface, 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.
4. a stretch-proof endurance type shielding soft data cable, its metallic conductor unit comprise be positioned at the aramid fiber at center, by the some stranded inner conducting layers that form in the gun-metal conductor of aramid fiber outer surface, form outer conductor layer by some oxygen-free 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 300%, counter-bending number of times promotes 300 ~ 500%, 100000 bending attenuation change values and is less than 5%.
5. this stretch-proof endurance type shielding soft data cable, its metallic conductor unit comprises the aramid fiber that is positioned at center, by the some stranded inner conducting layers that form in the gun-metal conductor of aramid fiber outer surface, form outer conductor layer by some oxygen-free copper conductors are stranded in inner conducting layer outer surface, described gun-metal conductor diameter is less than oxygen-free copper conductor, in described gun-metal conductor, tin content accounts for 0.4% ~ 0.6%, adopt different conductors to mix as conductor element, with respect to single copper conductor or alloy conductor, can improve stretch-proof and the bending resistance of product, can ensure that again conductor DC resistance and high frequency attenuation meet code requirement.
Brief description of the drawings
Accompanying drawing 1 is stretch-proof endurance type shielding soft data cable structure schematic diagram of the present invention;
Accompanying drawing 2 cushions sliding layer and metal screen layer structural representation for the present invention;
Accompanying drawing 3 is A-A cross-sectional view in accompanying drawing 2;
Accompanying drawing 4 is metallic conductor cellular construction schematic diagram of the present invention
Accompanying drawing 5 is the structural representation of comparative example cable.
In above accompanying drawing: 1, metallic 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, gun-metal conductor; 23, oxygen-free copper conductor.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of stretch-proof endurance type shielding soft data cable, comprise: eight metallic conductor unit 1 and aramid fiber reinforcement 21, this metallic conductor unit 1 outer surface is coated with insulation polypropylene layer 2, described metallic conductor unit 1 comprises the aramid fiber 20 that is positioned at center, by the some stranded inner conducting layers that form in the gun-metal conductor 22 of aramid fiber 20 outer surfaces, form outer conductor layer by some oxygen-free copper conductors 23 are stranded in inner conducting layer outer surface, described gun-metal conductor 22 diameters are less than oxygen-free copper conductor 23, in described gun-metal conductor 22, tin content accounts for 0.4% ~ 0.6%,
The stranded formation first, second, third between two of described eight metallic 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 metallic 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 is wound in described the second polytetrafluoroethylene floor 9 outer surfaces and forms buffering sliding layer 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, some one metal wires 13 are wound in abreast described buffering sliding layer 12 outer surfaces and form metal screen layer 14, and in this metal screen layer 14, wire 13 is wound around contrary with described cotton fiber line 17; 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;
One the 3rd polytetrafluoroethylene floor 15 is wrapped in described metal screen layer 14 outer surfaces, and an 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.
Above-mentioned gun-metal conductor 22 is 8:10 or 6:10 with the diameter ratio of oxygen-free copper conductor 23.
Above-mentioned aramid fiber reinforcement 21 diameters are 190 ~ 210D.
Comparative example: a kind of data cable, comprise eight metallic conductor unit 1, this metallic conductor unit 1 outer surface is coated with insulation polypropylene layer 2, and described metallic conductor unit 1 forms by some copper conductors 11 are stranded;
The stranded formation first, second, third between two of described eight metallic conductor unit 1 and the 4th symmetrical insulated wire are to 3,4,5,6, described first, second, third and the 4th symmetrical insulated wire to 3,4,5,6 stranded formation cable cores 8, wrapped described cable core 8 outer surfaces of one polyester belt 18, described polyester belt 18 and first, second, third and the 4th symmetrical insulated wire gap-fill between 3,4,5,6 is had to some cotton yarns 10;
The wire sheathing 19 being formed by some proof copper-wire braideds is positioned at polyester belt 18 outer surfaces, and an external sheath layer 16 is coated on described wire sheathing 19 outer surfaces.
Performance test data is as shown in table 1:
Table 1
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. a stretch-proof endurance type shielding soft data cable, it is characterized in that: comprising: eight metallic conductor unit (1) and aramid fiber reinforcement (21), this metallic conductor unit (1) outer surface is coated with insulation polypropylene layer (2), described metallic conductor unit (1) comprises the aramid fiber (20) that is positioned at center, by the some stranded inner conducting layers that form in the gun-metal conductor (22) of aramid fiber (20) outer surface, form outer conductor layer by some oxygen-free copper conductors (23) are stranded in inner conducting layer outer surface, described gun-metal conductor (22) diameter is less than oxygen-free copper conductor (23), in described gun-metal conductor (22), tin content accounts for 0.4% ~ 0.6%,
Described eight metallic 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) is wound in described the second polytetrafluoroethylene floor (9) outer surface and forms 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), and in this metal screen layer (14), wire (13) is wound around contrary with described cotton fiber line (17);
One the 3rd polytetrafluoroethylene floor (15) is wrapped in described metal screen layer (14) outer surface, and an external sheath layer (16) is coated on described the 3rd polytetrafluoroethylene floor (15) outer surface.
2. stretch-proof endurance type shielding soft data cable 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. stretch-proof endurance type shielding soft data cable according to claim 1, is characterized in that: described gun-metal conductor (22) is 6 ~ 8:10 with the diameter ratio of oxygen-free copper conductor (23).
4. stretch-proof endurance type shielding soft data cable according to claim 1, is characterized in that: described aramid fiber reinforcement (21) diameter is 190 ~ 210D.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410217427.7A CN104036869B (en) | 2014-05-22 | 2014-05-22 | Stretch-proof endurance type shields soft data cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410217427.7A CN104036869B (en) | 2014-05-22 | 2014-05-22 | Stretch-proof endurance type shields soft data cable |
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| CN104036869A true CN104036869A (en) | 2014-09-10 |
| CN104036869B CN104036869B (en) | 2017-05-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106297962A (en) * | 2015-05-20 | 2017-01-04 | 铄程智能科技（上海）有限公司 | A kind of high-intensity exercise cable |
| WO2018027534A1 (en) * | 2016-08-09 | 2018-02-15 | 广州市雷曼兄弟电子科技有限公司 | Data line |
| CN108447597A (en) * | 2018-05-11 | 2018-08-24 | 黄广文 | Shock vented or liquid vented power cord |
| CN110663092A (en) * | 2017-05-31 | 2020-01-07 | Ls电线有限公司 | Robot cable |
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| CN106297962A (en) * | 2015-05-20 | 2017-01-04 | 铄程智能科技（上海）有限公司 | A kind of high-intensity exercise cable |
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| CN110663092A (en) * | 2017-05-31 | 2020-01-07 | Ls电线有限公司 | Robot cable |
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| CN108447597A (en) * | 2018-05-11 | 2018-08-24 | 黄广文 | Shock vented or liquid vented power cord |
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| Publication number | Publication date |
|---|---|
| CN104036869B (en) | 2017-05-31 |
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