WO2016132918A1 - 2心平衡ケーブル - Google Patents
2心平衡ケーブル Download PDFInfo
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- WO2016132918A1 WO2016132918A1 PCT/JP2016/053354 JP2016053354W WO2016132918A1 WO 2016132918 A1 WO2016132918 A1 WO 2016132918A1 JP 2016053354 W JP2016053354 W JP 2016053354W WO 2016132918 A1 WO2016132918 A1 WO 2016132918A1
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- outer periphery
- flatness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
- H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0241—Disposition of insulation comprising one or more helical wrapped layers of insulation
- H01B7/025—Disposition of insulation comprising one or more helical wrapped layers of insulation comprising in addition one or more other layers of non-helical wrapped insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
Definitions
- the present invention relates to a two-core balanced cable, and particularly to a cable suitable for high-speed differential transmission.
- an insulating wire in which an outer periphery of a central conductor is covered with an insulating layer and a wire 1 on the outer periphery of two insulating wires arranged in parallel. It is composed of a single horizontally wound shield wound horizontally, a metal tape body made of a copper foil tape spirally wound around the outer periphery of the single horizontally wound shield, and a jacket covering the outer periphery of the metal tape body.
- a known two-core balanced cable is known (see Patent Document 1).
- the cable used for image inspection in the factory line needs to perform image inspection of a large number of products, and since bending and sliding are repeated, sufficient cable for this bending and sliding There is an increasing demand for longevity and flexibility that allows bending and sliding.
- the above-described two-core balanced cable of the first conventional example has difficulty in mechanical characteristics.
- the two-core balanced cable according to the first conventional example has the conductors with insulation coating arranged in parallel with each other, and the outer conductor and the outer jacket are arranged directly on the outer periphery thereof.
- the shape is an ellipse. For this reason, there are directions that are easy to bend and directions that are difficult to bend, and the flexibility varies depending on the bending direction. This variation in flexibility occurs when the twisted cords are arranged side by side, while the cords in the vertical direction do not interfere with each other, and it is easy to bend.
- the cable of the second conventional example described above is a cable in which the twisted pair wire and the inclusion are combined and the cross-sectional structure is relatively circular.
- the horizontal shield is directly wound on the twisted pair wire and the intervention. Due to the structure, due to the difference in flexibility between the twisted pair wire and the interposition, there is a fatal problem that the deformation with respect to the pressing force of the laterally wound shield is not uniform and it is difficult to keep the cross-sectional shape circular in the first place.
- even if a horizontally wound shield is wound not only is there no structure to hold the horizontally wound structure from the outside, but twisted pair wires and interpositions press the horizontally wound shield by repeated bending and sliding.
- this cable employs a relatively high stretch yarn as the interposer, and if the bending and sliding are repeated many times, the interposer extends and can no longer serve as a cable tension member. There is also a possibility that the extended intervention pushes up other structures, and the entire cable is wrinkled.
- the horizontally wound shield is scattered, a gap is easily generated between the widths of the horizontally wound, and an electromagnetic field is radiated from the gap. .
- the cross-sectional shape of the outer conductor disposed around the signal line is substantially circular, so that the flexibility is good in any direction. Therefore, the problem of bending uniformity does not occur in the first place. Further, since the signal line that is a pair of the four signal lines is arranged adjacent to the signal line that is another pair, the signal lines are not sufficiently shielded, and crosstalk occurs, thereby causing a signal strength. In addition, the signal quality may deteriorate and the electrical characteristics may deteriorate.
- the present invention has been made in view of the problems as described above, and its object is to provide a two-core cable that has both bending uniformity and flexibility in order to improve the cable life against sliding while being strong against bending. It is to provide a balanced cable.
- the two-core balanced cable of the present invention includes a twisted pair of cores formed by twisting two cores having a conductor and a dielectric layer formed on the outer periphery thereof, It is made of tetrafluoroethylene, and is provided on the outer periphery of the wound body layer, the winding wound around the core wire and the outer periphery of the interposed wire, and the interposed wire twisted together with the twisted core wire.
- the outer conductor and a jacket provided on the outer periphery of the outer conductor are formed so that the flatness of the cross-sectional shape of the entire cable in the initial state is in the range of 2% to 8%.
- polytetrafluoroethylene includes both porous and non-porous materials.
- the initial state is not a new state but a state of sliding 30 times, which will be described later, and the “flatness (%)” is ((maximum value of outer conductor diameter ⁇ minimum outer conductor diameter). Value) / maximum value of outer conductor diameter) ⁇ 100 (%).
- the length of the corrugated ridges of the surface shape in the longitudinal direction of the jacket is 15 to 50 times the diameter of the core wire.
- “width from uneven peak to peak” corresponds to the width of the uneven peak on the surface in the longitudinal direction of the cable.
- the two-core balanced cable of the present invention is composed of a pair of twisted core wires formed by twisting two core wires having a conductor and a dielectric layer formed on the outer periphery thereof, and polytetrafluoroethylene, The interposition twisted together with the twisted core wire, the wound body layer wound around the core wire and the outer periphery of the interposition, the external conductor provided on the outer periphery of the wound body layer, and the external And a jacket provided on the outer circumference of the conductor, and is characterized in that the flatness of the cross-sectional shape of the entire cable after a predetermined sliding test is in a range of 2% to 10%.
- the “predetermined sliding test” refers to a predetermined sliding condition (sliding frequency is 10,000 times, bending R is 10 mm, sliding speed is 100 times / min.) Using a sliding tester described later. The test is performed at a sliding stroke length of 200 mm.
- the uniformity of bending is inferior to the state where the flatness is 0% due to an increase in the flatness of the two-core balanced cable. If the bending uniformity is inferior, the distance between the inner conductor and the outer conductor varies in the longitudinal direction of the cable even if light sliding and bending are repeated repeatedly.
- the amount of attenuation indicating how much the input signal is attenuated at the output destination (hereinafter simply referred to as “attenuation amount”) becomes a cause.
- the attenuation amount of the cable exceeds 10 dB, and the electrical characteristics are deteriorated.
- the upper limit of the flatness is set to 8%.
- the flatness ratio is further reduced to approach 0%, but there is a problem from the viewpoint of flexibility. That is, the flexibility is deteriorated by tightly winding the wound body layer and the outer conductor, and as a result, for example, even in the initial state where light sliding is applied, an excessive pressing force is applied, and the inner conductor constituting the core wire
- the dielectric may be damaged or damaged, and the standard deviation of the characteristic impedance is large and exceeds 3 ⁇ , resulting in deterioration of electrical characteristics.
- the lower limit value of the flatness is set to 2%. That is, in the present invention, the cross-sectional shape of the entire cable is set to 2 to 8% in order to achieve both the uniformity of bending and the flexibility.
- the wound body layer is disposed between the core wire and the outer conductor, and the wound body layer together with the outer conductor surrounds the core wire and the interposition and is formed by the core wire and the interposition.
- the flatness is controlled more accurately in the initial state.
- the mutual positions of the core wire and the outer conductor constituting the cable change due to bending, so that the core wire pushes up the outer conductor and presses the outer conductor further from the initial state.
- the winding body layer is arranged between the core wire and the outer conductor as in the present invention, and when the outer conductor is arranged directly around the core wire and In comparison, not only the influence of the above-mentioned pressing of the core wire on the outer conductor due to sliding is mitigated, but also, for example, when the length in the width direction of the member constituting the wound body layer is longer than the outer conductor As a result, the influence of the above pressing is further dispersed by the wound body layer. As a result, the pressing on the outer conductor due to the core wire due to sliding is relieved, and the shape of the outer conductor can be maintained for a long time. .
- the wound body layer is made of ePTFE. This is because the winding body layer is made of a material having a low elongation rate, so that a change in elongation with respect to the curve of the cable due to sliding is achieved. This is based on the viewpoint of reducing shape and improving shape stability.
- the interposition is made of polytetrafluoroethylene, which takes into account the elongation with respect to the bending due to the sliding.
- polytetrafluoroethylene which takes into account the elongation with respect to the bending due to the sliding.
- the elongation is about 20% (strong filament) to 40% (ordinary filament)
- polytetrafluoroethylene is used as the interposition, the elongation is extremely small, 4% (porous polytetrafluoroethylene (ePTFE)) to 12% (nonporous polytetrafluoroethylene (PTFE)).
- ePTFE porous polytetrafluoroethylene
- PTFE nonporous polytetrafluoroethylene
- the circular layer is made of ePTFE, and a material having a porosity of 40% to 75% is used.
- a material having a porosity of 40% to 75% is used.
- the flatness after sliding (the number of sliding times is 10,000) is in the range of 2 to 10% from the viewpoint of durability of the shape maintenance ability. is there.
- the upper limit of the flatness was limited to 10%.
- the flatness of the two-core balanced cable was increased in terms of the uniformity of bending, which caused the distance between the inner conductor and the outer conductor to vary. As the distance from the center of the inner conductor to the outer conductor increases in the longitudinal direction, the characteristic impedance is disturbed and the number of reflected waves increases, resulting in increased attenuation. This is because, at the frequency of 900 MHz used, the attenuation of the cable exceeds 10 dB, and deterioration of electrical characteristics is observed.
- the reason for limiting the lower limit of the flatness to 2% is from the viewpoint of flexibility as described above, and by winding the wound body layer and the outer conductor tightly, the flexibility deteriorates.
- the flexibility deteriorates.
- Even in the initial state where light sliding is applied there is a risk of excessive pressing force, which may damage or damage the internal conductors and dielectrics that make up the core wire.
- the standard deviation of the characteristic impedance is large and exceeds 3 ⁇ . This is because the characteristics deteriorate.
- FIG. 1 is a cross-sectional view showing a configuration of a two-core balanced cable according to first to third embodiments of the present invention and comparative example 1.
- the two-core balanced cable 10 of the first embodiment is formed on an inner conductor 22 composed of a plurality of wires (19 in the first embodiment, not shown) and the outer periphery thereof.
- the inner conductor 22 is made of a silver-plated high-tensile copper alloy wire
- the inner dielectric layer 24 constituting the dielectric layer is a perfluoroethylene propylene copolymer (hereinafter referred to as “FEP”).
- the outer dielectric layer 25 is made of expanded porous polytetrafluoroethylene (hereinafter referred to as “ePTFE”).
- the interposition 30 is made of ePTFE having a porosity of 60%, and is composed of a large number of yarns.
- the wound body layer 32 is made of ePTFE having a porosity of 60% and has a tape-like shape having a predetermined width (5.5 mm). In the state including the core wire 26 and the interposition 30, These are wound around the outer periphery.
- the outer conductor 34 is mainly constituted by a laterally wound shield 34A made of a tin-plated tin-containing copper alloy wire ( ⁇ 0.08 mm).
- a tape-shaped aluminum foil-adhesive polyester tape (ALPET), which becomes the wound body layer 34B, is wound around the outer periphery of the laterally wound shield 34A with the aluminum layer inside, and the wound body layer 34B. Constitutes a part of the outer conductor 34.
- the jacket 36 is made of polyester.
- a method for manufacturing the high-speed differential cable 10 according to the first embodiment will be described.
- a dielectric layer 24 serving as an inner layer is formed by extruding and coating FEP on the outer periphery of the inner conductor 22.
- tape-shaped ePTFE is wound around the outer periphery of the dielectric layer 24 to form a dielectric layer 25 as an outer layer, and a core wire 26 including the inner conductor 22 and the dielectric layers 24 and 25 is formed.
- two core wires 26 are prepared, and two intervening bundles each including a plurality of thread-like intervening strands to be intervening 30 are prepared.
- the twisted pitch P ( 2A) is twisted at an interval of 12 mm, which is 15 times the layer core diameter.
- FIG. 2 (A) is a diagram showing only two core wires 26 and 26 for convenience in the two-core balanced cable 10 of the first embodiment.
- FIG. 2B is a diagram showing a corrugated configuration of the surface shape in the longitudinal direction of the jacket 36 in the two-core balanced cable 10 of the first embodiment.
- the longitudinal surface of the differential transmission cable 10 of the first embodiment has irregularities corresponding to the twisting pitch P between the core wires 26 and 26 and the interposition 30 described above. ing.
- the twisted pitch P of the two core wires 26 shown in FIG. 2 (B) affects the surface shapes of the wound body layer 32, the outer conductor 34, and the jacket 36 arranged on the outer periphery of the core wire 26.
- corrugated irregularities are formed on the surface shape of the entire differential transmission cable 10.
- tape-shaped ePTFE is wound around the outer circumferences of the cores 26 and 26 and the interposition 30 twisted together as described above (formation of the wound body layer 32), and then a plurality of conductors are provided in a horizontal winding ( Horizontal winding shield 34A formation).
- a plurality of conductors are provided in a horizontal winding ( Horizontal winding shield 34A formation).
- the wound body layer 32 between the dielectric layer 25 and the laterally wound shield 34A that is the outer conductor, the wound body layer 32 having a larger width than the linear laterally wound shield 34A is obtained.
- the core wire 26 and the interposition 30 By pressing the core wire 26 and the interposition 30 in a state where the contact surface is larger in the width direction, compared to a cable without the wound body layer 32 as in Comparative Example 2 described later, the bending and sliding operations are performed. Changes in the positions of the core wire 26 and the interposition 30 are suppressed, the cross-sectional shape of the two-core balanced cable 10 is maintained, and changes
- the wound body layer 34B is wound around the outer periphery of the horizontally wound shield 34A with the aluminum layer inside.
- the two-core balanced cable 10 is formed by extruding polyester (forming the jacket 36) on the outer periphery of the wound body layer 34B.
- the two-core balanced cable 10 formed in this way has an outer jacket 36 according to the twist pitch P of the spirally bent core wire 26 by twisting the two core wires 26 and 26 and the interposition 30 described above. Asperities are formed on the surface (see FIG. 2B).
- the pitch between the convex portions of the outer jacket 36 is 12 mm. This is a value corresponding to 15 times the layer core diameter.
- the flatness ratio f (%) is represented by ((maximum diameter ⁇ minimum diameter) / maximum diameter) ⁇ 100, and the maximum diameter (R) of the cross-sectional shape of the entire two-core balanced cable 10. Is the value obtained by dividing 100 by the value obtained by subtracting the minimum value (r) of the cross-sectional diameter of the entire cable 10 by the maximum value (R) of the diameter.
- the flatness in an arbitrary cross section is measured at 30 locations, and the average value is calculated.
- Table 1 shows the flatness ratios of the “initial state” and the “state after sliding” of the two-core balanced cable 10 in the first embodiment.
- the “initial state” of the flatness refers to a state in which the two-core balanced cable 10 manufactured under the above-described manufacturing conditions is slid 30 times by the sliding tester 100 schematically shown in FIG.
- a sliding tester 100 includes a fixed plate 101 extending in the vertical direction, and a movable plate 102 extending in the vertical direction with a predetermined interval from the fixed plate 101 and capable of reciprocating in the vertical direction.
- press plates 103 and 104 connected to both plates 101 and 102, respectively, are provided.
- the part is fixed to the fixed plate 101 and the movable plate 102 using the holding plates 103 and 104. Thereafter, the moving plate 102 is reciprocated a predetermined number of times with a stroke length of 200 mm.
- a state in which the sliding tester 100 is slid 30 times is referred to as an “initial state” (hereinafter, the same applies to other examples).
- the above-mentioned “state after sliding” refers to a state in which the sliding tester 100 is used to slide 10,000 times.
- the flatness in the initial state of the first example is 2.1%
- the flatness in the state after sliding is 2.7%.
- the two-core balanced cable 50 of the second embodiment is different from the two-core balanced cable 10 of the first embodiment described above in that the twisting pitch P of the core wires 26 and 26 and the interposition 30 is different from the flatness based thereon. Yes, the other configurations are the same.
- the twist pitch P is twisted at 17 mm, which is 22 times the layer core diameter.
- Table 1 the flatness is 4.7% in the initial state and 5.6% in the state after sliding.
- the twist pitch P of the core wires 26 and 26 and the interposition 30, and the The flatness based is different, and the other configurations are the same.
- the twist pitch P is twisted at 40 mm, which is 50 times the layer core diameter.
- Table 1 the flatness is 5.9% in the initial state, and is 7.3% in the state after sliding.
- the two-core balanced cable 65 of the fourth embodiment has a different flatness from the intervening material, and the other configurations are the same.
- the interposition is made of polytetrafluoroethylene (PTFE) and is composed of a large number of yarns. As shown in Table 1, the flatness ratio is 4.9% in the initial state, and 6.8% in the state after sliding.
- Comparative Example 1 In the two-core balanced cable 70 according to the comparative example 1, the twist pitch P between the core wires 26 and 26 and the interposition 30 is compared with the two-core balanced cable 10 of the first embodiment, as in the second and third embodiments described above. The flatness based on it is different, and the other configurations are the same.
- the twist pitch is 8 mm, which is 10 times the layer core diameter. Thereby, as shown in Table 1, the flatness is 1.5% in the initial state, and 1.8% in the state after sliding.
- Comparative Example 2 will be described with reference to FIG.
- the two-core balanced cable 80 of the comparative example 2 is wound around the dielectric layers 24 and 25 and the outer conductor 34 as compared with the first to third and comparative examples 1.
- the body layer 32 is not provided, and the outer conductor 34 is disposed directly on the outer periphery of the dielectric layer 25, and the twist pitch P of the core wires 26 and 26 and the interposition 30 is different from the flatness based on the twisted pitch P.
- the twist pitch P is twisted at 17 mm, which is 22 times the layer core diameter.
- the horizontal winding shield is directly wound from above the cores 26 and 26 and the interposition 30, so that the horizontal shield shield is pushed by the difference in flexibility between the cores 26 and 26 and the interposition 30.
- the deformation due to pressure is not uniform, it is difficult to maintain a circular shape, the flatness deviates from the desired value, and even if it covers a horizontal winding shield, the bending stress due to sliding directly affects the horizontal winding shield.
- the laterally wound shield 34 ⁇ / b> A is scattered, and the flatness is changed more greatly. As a result, as shown in Table 1, the flatness ratio is 10.3% in the initial state, and 13.2% in the state after sliding.
- Comparative Example 3 will be described.
- the two-core balanced cable (not shown) according to the comparative example 3 is different from the two-core balanced cable 10 of the first embodiment in that the intervening material is changed to a staple yarn, and the other configurations are the same.
- the twist pitch is 8 mm, which is 10 times the core diameter.
- the flatness ratio is 9.3% in the initial state, and 14.5% in the state after sliding.
- the flatness is set to be in the range of 2 to 8% in the initial state of the two-core balanced cable and in the range of 2 to 10% in the state after sliding.
- Comparative Examples 1 to 3 compare the values exceeding the upper limit and the lower limit of the above range. Based on the above, it was confirmed that only the examples 1 to 4 can achieve both the uniformity and flexibility of bending, and that the effect can be achieved only by the above range.
- ePTFE or PTFE is used as the intervening material.
- the elongation rate (20%) of the material itself is relatively large.
- the cable is bent and slid by some bending and sliding movement, so that it moves from the manufacturing position and presses the inner and outer members to deform other members and There is a risk of changing the flatness of the.
- ePTFE or PTFE is adopted as an intervening material in the embodiment, and the elongation rate is as small as 4%, and the influence on the flatness of the cable is small. In this way, in the embodiment, since the cable is configured by adopting a member that has a small change in flatness even by bending / sliding operation, the flatness of the cable hardly changes even after the operation. Stability can be improved.
- a horizontal winding shield (external conductor 34) is provided through the interposition and the presser tape 32 serving as a wound body layer, so that a horizontal winding shield having a linear shape is provided.
- the tape-like presser tape 32 having a certain width presses the intervening and twisted core wires in a larger surface, so that the relative positions of the intervening and twisted core wires change.
- all the cables described in Examples 1 to 3 are configured so that the twist pitch P is in a range of 15 to 50 times the core diameter of the layer, whereby the waveform of the surface shape in the longitudinal direction of the jacket 36 is obtained.
- the length of the width between the ridges is also 15 to 50 times the core diameter.
- the present invention comprises a twisted core wire formed by twisting two core wires each having a conductor and a dielectric layer formed on the outer periphery thereof, and is composed of polytetrafluoroethylene.
- the intervening twisted together, the wound body layer wound around the core wire and the outer periphery of the interposition, the outer conductor provided on the outer periphery of the wound body layer, and the outer periphery of the outer conductor If the cable is formed so that the flatness of the cross-sectional shape of the entire cable is in the range of 2% to 8%, it can be widely applied regardless of its size, material, and application Is possible. That is, it is needless to say that the present invention can be widely applied not only to cables used for image inspection in a factory line but also to cables used for personal computers such as USB cables and television peripheral devices.
- Differential transmission cable 22 Inner conductor 24 Dielectric layer (inner layer) 25 Dielectric layer (outer layer) 26 core 28 twisted pair 30 intervention 32 wound body layers 34 Outer conductor 34A Horizontal winding shield 34B Winding body layer (ALPET) 36 jacket 50 differential transmission cable 60 differential transmission cable
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Communication Cables (AREA)
Abstract
Description
新品のケーブル全体の断面形状の扁平率を2~8%の範囲とすることは、ケーブルの製造条件をつきつめれば不可能ではなく、これまでは製造コストの面から敬遠されてきたに過ぎない。しかしながら、そのようにコストをかけて作られた円形に近いケーブルであって、少し摺動や屈曲を繰り返しただけで、すぐに扁平率が10%を超えてしまい、品質が長続きしない。初期状態のケーブル全体の断面形状の扁平率を2~8%の範囲にするには、ケーブルに摺動履歴が残らないことが必要であり、ポリテトラフルオロエチレンの介在を使用することが絶対的な要件となっており、続いて巻回帯層を設けることが重要となっている。
次に、第4実施例について説明する。第4実施例の2心平衡ケーブル65では、第1実施例の2心平衡ケーブル10と比較し、介在の材料と、扁平率が異なるものであり、他の構成は同じである。第4実施例では、介在がポリ・テトラ・フルオロ・エチレン(PTFE)から成り、多数の糸状のもので構成されている。表1に示すように、扁平率は、初期状態では4.9%となり、摺動後の状態では6.8%となっている。
22 内部導体
24 誘電体層(内層)
25 誘電体層(外層)
26 心線
28 対撚り心線
30 介在
32 巻回体層
34 外部導体
34A 横巻きシールド
34B 巻回体層(ALPET)
36 外被
50 差動伝送ケーブル
60 差動伝送ケーブル
Claims (3)
- 導体とその外周に形成された誘電体層とを有する2つの心線が撚り合わせられて形成された対撚り心線と、
ポリテトラフルオロエチレンで構成され、前記対撚り心線と併せて撚り合わされた介在と、
前記心線および前記介在の外周に巻回された巻回体層と、
前記巻回体層の外周に設けられた外部導体と、
前記外部導体の外周に設けられた外被と、を備え
初期状態のケーブル全体の断面形状の扁平率が2%~8%の範囲になるように形成されていることを特徴とする2心平衡ケーブル。 - 前記外被の長手方向における表面形状の波形の凹凸の山から山までの幅の長さは、前記心線の径の15倍~50倍であることを特徴とする、請求項1に記載の2心平衡ケーブル。
- 導体とその外周に形成された誘電体層とを有する2つの心線が撚り合わせられて形成された対撚り心線と、
ポリテトラフルオロエチレンで構成され、前記対撚り心線と併せて撚り合わされた介在と、
前記心線および前記介在の外周に巻回された巻回体層と、
前記巻回体層の外周に設けられた外部導体と、
前記外部導体の外周に設けられた外被と、を備え
所定の摺動試験後のケーブル全体の断面形状の扁平率が2%~10%の範囲になるように形成されていることを特徴とする2心平衡ケーブル。
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CN201680010754.2A CN107251166A (zh) | 2015-02-20 | 2016-02-04 | 双芯平衡电缆 |
EP16752305.9A EP3261099A4 (en) | 2015-02-20 | 2016-02-04 | Two-core balanced cable |
US15/551,986 US20180174706A1 (en) | 2015-02-20 | 2016-02-04 | Two-core balanced cable |
KR1020177021106A KR20170110602A (ko) | 2015-02-20 | 2016-02-04 | 2심 평형 케이블 |
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EP (1) | EP3261099A4 (ja) |
JP (2) | JP2016157668A (ja) |
KR (1) | KR20170110602A (ja) |
CN (1) | CN107251166A (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US10818412B2 (en) | 2016-03-31 | 2020-10-27 | Autonetworks Technologies, Ltd. | Communication cable |
JP6725012B2 (ja) * | 2017-02-01 | 2020-07-15 | 株式会社オートネットワーク技術研究所 | 通信用電線 |
US10872711B2 (en) * | 2017-08-01 | 2020-12-22 | Sumitomo Electric Industries, Ltd. | Cable having a twisted pair electronic wire and a release layer |
CN111566760B (zh) * | 2017-12-27 | 2021-10-22 | 住友电气工业株式会社 | 双轴平行电缆 |
CN108756862A (zh) * | 2018-05-28 | 2018-11-06 | 中国科学院地质与地球物理研究所 | 随钻双线传输总线系统 |
US20220199291A1 (en) * | 2019-04-26 | 2022-06-23 | Nissei Electric Co., Ltd. | Communication cable |
JP6955530B2 (ja) * | 2019-05-20 | 2021-10-27 | 矢崎総業株式会社 | 耐屈曲通信ケーブル及びワイヤハーネス |
CN110335703B (zh) * | 2019-07-16 | 2020-09-18 | 安徽渡江电缆集团有限公司 | 一种扫地机器人专用高柔耐曲饶光电复合缆及其固定夹具 |
DE102020110370A1 (de) | 2020-04-16 | 2021-10-21 | Leoni Kabel Gmbh | Kabel zur elektrischen Datenübertragung |
US20230215603A1 (en) * | 2021-12-31 | 2023-07-06 | Swift Bridge Technologies (M) Sdn Bhd | Electrical cable with dielectric film |
WO2024006162A1 (en) * | 2022-06-27 | 2024-01-04 | Swift Bridge Technologies (M) Sdn Bhd | Conductive polymeric material and cable therewith |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007165004A (ja) * | 2005-12-09 | 2007-06-28 | Junkosha Co Ltd | ケーブル |
JP2011054410A (ja) * | 2009-09-01 | 2011-03-17 | Yoshinokawa Electric Wire & Cable Co Ltd | 高周波用極細ペアケーブル及びその製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2366661B (en) * | 1999-06-18 | 2003-07-23 | Belden Wire & Cable Co | High performance data cable |
JP2003297157A (ja) * | 2002-04-08 | 2003-10-17 | Okano Densen Kk | 同軸ケーブル |
DE10303809A1 (de) * | 2003-01-31 | 2004-08-12 | Nexans | Datenübertragungskabel zum Anschluss an orstveränderliche Geräte |
US8178785B2 (en) * | 2009-10-19 | 2012-05-15 | Nexans | Flexible electric cable |
JP2011129261A (ja) * | 2009-12-15 | 2011-06-30 | Junkosha Co Ltd | 高速差動用クワッドケーブル |
JP5953764B2 (ja) * | 2012-01-24 | 2016-07-20 | 住友電気工業株式会社 | 多心ケーブルとその製造方法 |
-
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2016
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- 2016-02-04 WO PCT/JP2016/053354 patent/WO2016132918A1/ja active Application Filing
- 2016-02-04 EP EP16752305.9A patent/EP3261099A4/en not_active Withdrawn
- 2016-02-04 CN CN201680010754.2A patent/CN107251166A/zh active Pending
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007165004A (ja) * | 2005-12-09 | 2007-06-28 | Junkosha Co Ltd | ケーブル |
JP2011054410A (ja) * | 2009-09-01 | 2011-03-17 | Yoshinokawa Electric Wire & Cable Co Ltd | 高周波用極細ペアケーブル及びその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3261099A4 * |
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EP3261099A4 (en) | 2018-09-12 |
JP2016157683A (ja) | 2016-09-01 |
EP3261099A1 (en) | 2017-12-27 |
TW201640524A (zh) | 2016-11-16 |
KR20170110602A (ko) | 2017-10-11 |
JP2016157668A (ja) | 2016-09-01 |
CN107251166A (zh) | 2017-10-13 |
US20180174706A1 (en) | 2018-06-21 |
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