CN205451833U - High compliance data signal cable - Google Patents

Abstract

The utility model discloses a high compliance data signal cable, including cable core and anti -skidding band layer, inner sheath, cable core shielding layer and the oversheath of cladding on the cable core, the cable core is restrainted by the sinle silk and is constituted with the fibre stranded conductor the sinle silk is restrainted including the core pencil and is stranded the outer pencil on the core pencil, and core pencil and outer pencil are by a plurality of copper monofilament transposition beam forming, outer pencil restraint hank direction and core pencil restraint hank opposite direction, it is the same that the direction is twisted to the compound hank direction and the restrainting of outer pencil on the outer pencil layer that comprises the outer pencil of the six roots of sensation. The cladding has sinle silk shielding layer and sinle silk insulating layer in proper order on this sinle silk is restrainted. The sinle silk shielding layer is the foil strips shielding layer, the cable core shielding layer is the mesh weaving shielding layer. The sinle silk is restrainted and is filled in the fibre stranded conductor, and this fibre stranded conductor is the chemical fiber long filament. This signal cable not only shields effectually, can effectively prevent the electromagnetic invade to disturb, has good compliance, wearability, oil resistivity, resistant torsion bending moreover, specially adapted robot system's signal transmission.

Description

High flexibility digital signal cable

Technical field

This utility model relates to field of cable technology, particularly to the digital signal transmission cable in intelligent robot system.

Background technology

Along with the development of intelligent robot technology, the application of robot constantly expands extension, and plays increasing effect in the life and commercial production of people.Intelligent robot, in the application in the fields such as industry, agricultural, space flight, military affairs and medical science, has liberated labour force greatly, completes the excessive risk task that many people cannot complete.

Intelligent robot can complete many complicated work, the work of these complexity needs the movable parts such as robot arm constantly to bend and twist motion, and the digital signal transmission cable being installed in robot system allows for standing bending frequently and extruding force and twisting resistance produced by the teamwork such as torsion, therefore robot cable does not require nothing more than and has higher wearability and anti tear requirement, and there is fabulous softness requirements, the signal conveying capacity that so guarantee robot cable is powerful, guarantee robot plays preferable function.The applicant has applied for the utility model patent (application number: 201620079897.6) of " high antitorque robot signal cable " on January 27th, 2016, the signal cable of this application has preferable anti tear and anti-wear performance, but flexibility is not enough in actual use, and between each loom unit of composition cable core, easily form mutual signal disturbing and cross-talk, it is unfavorable for the safe transmission of signal and the properly functioning of robot.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of high flexibility digital signal cable with improved flexibility.

In order to solve above-mentioned technical problem, high flexibility digital signal cable of the present utility model, anti-skidding belting layer, inner sheath, cable core screen layer and the oversheath including cable core and being coated on cable core, described cable core is made up of core bundle and fiber strands, described core bundle includes that intentionally portion's wire harness and stranded outer layer wire harness on heart portion wire harness, heart portion wire harness and outer layer wire harness are by some stranded bunchys of copper monofilament；The bundle strand direction of outer layer wire harness is in opposite direction with the bundle of heart portion wire harness strand, and the multiple strand direction of the outer layer wire harness layer being made up of six roots of sensation outer layer wire harness is identical with the bundle of outer layer wire harness strand direction.

After using said structure, owing to the heart portion wire harness of core bundle and outer layer wire harness are by some stranded bunchys of copper monofilament, in this structure, core bundle is not to use single conductor, but formed by some very thin tinsels are stranded, both can guarantee that the safe and reliable transmission of digital signal, make again cable core have splendid flexibility, it is simple to cable bend and torsion, more can preferably avoid producing extruding and twisting resistance because of bending and torsion to harmful effect produced by cable.Due also to restraint strand direction with it identical in the multiple strand direction of outer layer wire harness, so beneficially the stress of every copper monofilament and degree of crook in uniform wire harness during multiple strand, more can realize very thinization of cable core monofilament, thus improve the flexibility of whole cable.And the bundle strand direction of outer layer wire harness is in opposite direction with the bundle of heart portion wire harness strand, the equilibrium of core bundle every copper monofilament stretching force can not only be realized, monofilament is avoided to rupture in pulling process, and the stranded compactness of monofilament and core bundle has been effectively ensured, avoid pine stock, prevent being excessively embedded of monofilament and adjacent lines interfascicular, it is ensured that the bending of wire is flexible.Owing to cable core is made up of core bundle and fiber strands, core bundle in cable core is filled in fiber strands, on the one hand fiber strands ensure that core bundle position in cable core, ensure that the rounding of cable core is stable, thus enhance the electrical property of cable, on the other hand fiber strands has again higher tensile resistance, makes cable have good tension and antitorque effect, it is ensured that core Shu Buhui occurs because of distortion mutually to extrude the breakage caused.

Preferred implementation of the present utility model, described core bundle is coated with conductor screen and core insulating barrier successively.Owing to have employed core shielding and the dual shield structure of cable core shielding, core shielding construction the most effectively stops electromagnetic interference signal to invade core bundle screen unit, also the internal electromagnetic signal radiation of core screen unit is avoided to leak, cable core shielding construction the most effectively stops the impact on cable core of the external electromagnetic interference signal, there is the tightest shield effectiveness reliably, it is ensured that the security reliability of cable transmission signal.

Preferred implementation of the present utility model, described conductor screen is foil screen layer, and described cable core screen layer is netted woven shield.The foil screen layer of described conductor screen is wrapped by plastic-aluminum shielding band, and the netted woven shield of described cable core screen layer is formed by tin plating soft proof copper-wire braided.This structure is easy to fabrication and processing, and shield effectiveness is good.

Further embodiment of the present utility model, described core bundle is filled in fiber strands, and this fiber strands is chemical fiber filament.It is strong that chemical fibre has pulling force, does not goes mouldy and the superperformance of corrosion resistant.

Further embodiment of the present utility model, described core insulating barrier is that PET mixture extrudes layer, and described oversheath is that polyester compound extrudes layer.Using PET mixing to extrude layer, its electrical insulation capability is excellent, and even in the case of high-temperature high-frequency, its electrical property is still preferable, and endurance, mar proof and good stability of the dimension.

Accompanying drawing explanation

With detailed description of the invention, this utility model high flexibility digital signal cable is described further below in conjunction with the accompanying drawings.

Fig. 1 is the cross section structure schematic diagram of this utility model a kind of detailed description of the invention of high flexibility digital signal cable；

Fig. 2 is the structure zoomed-in view of core bundle in structure shown in Fig. 1.

In figure, 1 cable core, 2 core bundles, 21 heart portion wire harness, 22 outer layer wire harness, 3 conductor screens, 4 core insulating barriers, 5 fiber strands, 6 anti-skidding belting layers, 7 inner sheaths, 8 cable core screen layers, 9 oversheaths.

Detailed description of the invention

High flexibility digital signal cable as shown in Figure 1 and Figure 2, this cable includes cable core 1, and this cable core 1 is made up of 6 core bundles 2 and fiber strands 5, and core bundle 2 is filled in fiber strands 5, and fiber strands 5 is surrounded on core bundle 5 around.Fiber strands 5 is the chemical fiber filaments such as polyester fiber, Fypro or polypropylene fibre, and they are arranged at core bundle 5 around abreast, and the most stranded with core bundle 2.

Each core bundle 2 includes a radical center portion wire harness 21 and six roots of sensation outer layer wire harness 22, heart portion wire harness 21 and outer layer wire harness 22 and is formed by some copper metal monofilament are stranded.Heart portion wire harness 21 all contains the copper metal monofilament of identical radical with each outer layer wire harness 22, and the copper metal monofilament radical in each wire harness determines according to the design of cable specifically used situation.Heart portion wire harness 21 is positioned at the center of core bundle 2, and around heart portion wire harness 21, strand has six roots of sensation outer layer wire harness 22 again, and this six roots of sensation outer layer wire harness 22 is in and constitutes outer layer wire harness layer on same circumference.

For ensureing the stranded compactness of wire harness, and preventing the transition of the metal monofilament of adjacent lines interfascicular from embedding, the bundle strand direction of outer layer wire harness 22 is in opposite direction with the bundle of heart portion wire harness 21 strand.Enclosing the six roots of sensation outer layer wire harness 22 around heart portion wire harness 21, the bundle strand direction in the multiple strand direction and outer layer wire harness 22 self of the outer layer wire harness layer that this six roots of sensation outer layer wire harness 22 is constituted is identical.Outer placing at core bundle 2 is coated with conductor screen 3 and core insulating barrier 4 successively, conductor screen 3 is formed for plastic-aluminum combined shielding band is wrapped, being extruded with core insulating barrier 4 on conductor screen 3, this core insulating barrier 4 is base material by PET and adds the mixture that other additives are formed and extrude and form.

Be wrapped with anti-skidding belting layer 6 in cable core 1 periphery, the THICKNESS CONTROL of anti-skidding belting layer 6 is 0.1mm, and its band lap is the 10%-15% of bandwidth, is extruded with inner sheath 7 continuously outside anti-skidding belting layer 6, and the THICKNESS CONTROL of this inner sheath is at 0.3mm-05mm.The periphery of inner sheath 7 is provided with woven shield 8, and woven shield 8 uses and forms not less than the soft round copper wire of 0.1mm or tin plating soft proof copper-wire braided, between its count controls as 70%-80%.Being extruded with polyurethane compound outside woven shield 8 and extrude the oversheath 9 of formation, the thickness of this oversheath 9 is 1.2mm-1.5mm, and it has the advantages such as wear-resisting, corrosion resistant, it is adaptable in the most severe various industrial environments.

Above the specific embodiment of this utility model patent is illustrated and illustrates, but this utility model patent is not limited only to above example, all equivalent transformations made according to this utility model patent, all should be within this utility model scope of patent protection.

Claims (7)

1. a high flexibility digital signal cable, including cable core (1), and anti-skidding belting layer (6), inner sheath (7), cable core screen layer (8) and the oversheath (9) being coated on the most successively on cable core (1), it is characterized in that: described cable core (1) is made up of core bundle (2) and fiber strands (5), described core bundle (2) includes that intentionally portion's wire harness (21) and stranded outer layer wire harness (22) in heart portion wire harness (21), heart portion wire harness (21) and outer layer wire harness (22) are by some stranded bunchys of copper monofilament；The bundle strand direction of outer layer wire harness (22) is in opposite direction with the bundle in heart portion wire harness (21) strand, and the multiple strand direction of the outer layer wire harness layer being made up of six roots of sensation outer layer wire harness (22) is identical with the bundle of outer layer wire harness (22) strand direction.

High flexibility digital signal cable the most according to claim 1, it is characterised in that: it is coated with conductor screen (3) and core insulating barrier (4) on described core bundle (2) successively.

High flexibility digital signal cable the most according to claim 2, it is characterised in that: described conductor screen (3) is foil screen layer, and described cable core screen layer (8) is netted woven shield.

High flexibility digital signal cable the most according to claim 2, it is characterized in that: the foil screen layer of described conductor screen (3) is wrapped by plastic-aluminum shielding band, and the netted woven shield of described cable core screen layer (8) is formed by tin plating soft proof copper-wire braided.

High flexibility digital signal cable the most according to claim 1, it is characterised in that: described core bundle (2) is filled in fiber strands (5), and this fiber strands (5) is chemical fiber filament.

High flexibility digital signal cable the most according to claim 2, it is characterised in that: described core insulating barrier (4) is that PET mixture extrudes layer, and described oversheath (9) is that polyester compound extrudes layer.

High flexibility digital signal cable the most according to claim 1, it is characterised in that: the band lap of described anti-skidding belting layer (6) is 10% the 15% of bandwidth.