CN203882718U - Stretch-resistant and fatigue-resistant shielded soft data cable - Google Patents

Stretch-resistant and fatigue-resistant shielded soft data cable Download PDF

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Publication number
CN203882718U
CN203882718U CN201420265702.8U CN201420265702U CN203882718U CN 203882718 U CN203882718 U CN 203882718U CN 201420265702 U CN201420265702 U CN 201420265702U CN 203882718 U CN203882718 U CN 203882718U
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China
Prior art keywords
layer
stretch
resistant
metal
data cable
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Withdrawn - After Issue
Application number
CN201420265702.8U
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Chinese (zh)
Inventor
崔久德
陆春良
沈建新
张博
濮建芳
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Priority to CN201420265702.8U priority Critical patent/CN203882718U/en
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Abstract

The utility model discloses a stretch-resistant and fatigue-resistant shielded soft data cable. The stretch-resistant and fatigue-resistant shielded soft data cable 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, 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 the winding direction of metal wires in the metal shielding layer is opposite to that of the cotton fiber wire; and a third polytetrafluoroethylene layer wraps the metal shielding layer. The stretch-resistant and fatigue-resistant shielded soft data cable 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

Stretch-proof endurance type shielding soft data cable
Technical field
The utility model relates to a kind of data cable, relates 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 utility model 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 adopted in the utility model 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 utility model compared with prior art has following advantages:
1. the utility model stretch-proof endurance type shielding soft data cable, 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. the utility model stretch-proof endurance type shielding soft data cable, 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 stretch-proof endurance type shielding soft data cable, 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 the utility model stretch-proof endurance type shielding soft data cable structure schematic diagram;
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 metallic conductor cellular construction schematic diagram
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 utility model is 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 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. 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.
CN201420265702.8U 2014-05-22 2014-05-22 Stretch-resistant and fatigue-resistant shielded soft data cable Withdrawn - After Issue CN203882718U (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036869A (en) * 2014-05-22 2014-09-10 江苏亨通线缆科技有限公司 Stretch- and fatigue-resistant shielding soft data cable
CN105469862A (en) * 2015-12-23 2016-04-06 江苏东峰电缆有限公司 Super flexible control cable for robot

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036869A (en) * 2014-05-22 2014-09-10 江苏亨通线缆科技有限公司 Stretch- and fatigue-resistant shielding soft data cable
CN104036869B (en) * 2014-05-22 2017-05-31 江苏亨通线缆科技有限公司 Stretch-proof endurance type shields soft data cable
CN105469862A (en) * 2015-12-23 2016-04-06 江苏东峰电缆有限公司 Super flexible control cable for robot

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Granted publication date: 20141015

Effective date of abandoning: 20170531