Composite cable with reliable transmission performance for instruments and meters

Abstract

The utility model discloses a composite cable with reliable transmission performance for instruments and meters. The composite cable comprises a cable core. The cable core comprises a data transmission wire core, and a plurality of power wire cores, a plurality of control wire cores and a plurality of filling cores which are distributed on the periphery of the data transmission wire core; a first isolation layer is arranged on the periphery of the cable core, a shielding layer is arranged on the periphery of the first isolation layer, a second isolation layer is arranged on the periphery of the shielding layer, and an outer sheath is arranged on the periphery of the second isolation layer. According to the utility model, the integrated cable can realize the integration of power supply, signal control and data transmission functions, reduces the cost of raw materials and the cost of installation and maintenance, and enables the signal transmission to be more stable and controllable.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a transmission performance reliable comprehensive cable for instrument. BACKGROUND

[0002] With the rapid development of industrial automation, the application of instrument is more and wide, and wire and cable is important component for realizing energy delivery, signal control and data transmission, and the stability and reliability of cable transmission are particularly important for normal use of instrument. The instrument needs power supply, signal control and data transmission in use, and in general case, control cable is used for power supply, and data cable is used for signal control and data transmission, but the raw material cost and installation and maintenance cost are relatively high.

[0003] Therefore, the transmission performance reliable comprehensive cable for instrument is designed, and the integrated cable for realizing power supply, signal control and data transmission is realized, the raw material cost and installation and maintenance cost are reduced, and the signal transmission is more stable and controllable. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is expected to provide a transmission performance reliable comprehensive cable for instrument, which can realize the integration of power supply, signal control and data transmission, make the signal transmission more stable and controllable, and reduce the raw material cost and installation and maintenance cost.

[0005] The utility model provides a transmission performance reliable comprehensive cable for instrument, which comprises a cable core, the cable core comprises a data transmission line core and a plurality of power line cores, a plurality of control line cores and a plurality of filling cores distributed on the outer periphery of the data transmission line core, a first isolation layer is arranged on the outer periphery of the cable core, a shielding layer is arranged on the outer periphery of the first isolation layer, a second isolation layer is arranged on the outer periphery of the shielding layer, and an outer sheath is arranged on the outer periphery of the second isolation layer.

[0006] Further, the data transmission line core comprises a first conductor, a first insulation layer, a first sheath, a shielding layer and a second sheath arranged in sequence from the inside to the outside.

[0007] Further, the first conductor is composed of 7-9 0.15-0.18 mm tough copper wires; the first insulation layer is made of polyethylene material; the first sheath and the second sheath are made of 105 DEG C flame-retardant polyvinyl chloride material; and the shielding layer is made of braided tough copper monofilament.

[0008] Further, the cable core comprises one data transmission line core, four power line cores, two control line cores and six filling cores, the data transmission line core is sequentially provided with the four power line cores and the two control line cores in the clockwise direction along the outer periphery of the data transmission line core, and the filling cores are arranged between adjacent power line cores, between adjacent control line cores and between adjacent power line cores and control line cores.

[0009] Further, the power line core comprises a second conductor and a second insulating layer arranged on the outer periphery of the second conductor.

[0010] Further, the second conductor is composed of 18-20 pieces of 0.1-0.15 mm tough copper wires, and the second insulating layer is made of 105 DEG C flame-retardant polyvinyl chloride material.

[0011] Further, the control line core comprises a third conductor and a third insulating layer arranged on the outer periphery of the third conductor.

[0012] Further, the third conductor is composed of 14-16 pieces of 0.15-0.18 mm tough copper wires, and the third insulating layer is made of 105 DEG C flame-retardant polyvinyl chloride material.

[0013] Further, the filling core is a flame-retardant polypropylene filling rope.

[0014] Further, the first and second insulating layers are both made of polyester film, the shielding layer is made of braided tough copper monofilament, and the sheath is made of 105 DEG C environment-friendly flame-retardant low-smoke halogen-free polyolefin material.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a cable core, and the cable core comprises a data transmission line core and a plurality of power line cores, a plurality of control line cores and a plurality of filling cores distributed on the outer periphery of the data transmission line core, a first insulating layer is arranged on the outer periphery of the cable core, a shielding layer is arranged on the outer periphery of the first insulating layer, a second insulating layer is arranged on the outer periphery of the shielding layer, and an outer sheath is arranged on the outer periphery of the second insulating layer.

[0017] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0019] Fig. 1It is a schematic diagram of the structure of the comprehensive cable;

[0020] Fig. 2 It is a schematic diagram of the cross-sectional structure of the comprehensive cable;

[0021] Reference numerals in the drawing: 1, core; 2, first isolation layer; 3, shielding layer; 4, second isolation layer; 5, sheath;

[0022] 11, data transmission line core; 12, power line core; 13, control line core; 14, filler core;

[0023] 111, first conductor; 112, first insulation layer; 113, inner sheath; 114, partial shielding layer; 115, outer sheath;

[0024] 121, second conductor; 122, second insulation layer;

[0025] 131, third conductor; 132, third insulation layer. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description.

[0027] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] Please refer to Figs. 1-2 The embodiment of the utility model provides a kind of transmission performance reliable comprehensive cable for instrument and apparatus, it includes cable core 1, and cable core 1 includes data transmission line core 11 and the several power line core 12, several control line core 13 and several filler core 14 distributed in the outer periphery of data transmission line core 11;The outer periphery of cable core 1 is provided with first isolation layer 2, and the outer periphery of first isolation layer 2 is provided with shielding layer 3, and the outer periphery of shielding layer 3 is provided with second isolation layer 4, and the outer periphery of second isolation layer 4 is provided with outer sheath 5;

[0029] First isolation layer 2 and second isolation layer 4 are both polyester film;Shielding layer 3 is woven tough copper monofilament;Sheath 5 is 105 DEG C environment-friendly flame-retardant low-smoke halogen-free polyolefin material.

[0030] In the embodiment, the cable core 1 is arranged at the center of the comprehensive cable, and the cable core 1 comprises a data transmission line core 11 for providing excellent communication transmission function for the cable, a power line core 12 for continuously providing power supply for the cable, a control line core 13 for continuously transmitting signals and controlling the cable, and a filling core 14 for ensuring the stability of the cable core 1 and playing a role of anti-stretching and anti-swinging, and the data transmission line core 11 is a coaxial communication cable, which has excellent capacitance, inductance and characteristic impedance performance, can realize the integration of power supply, signal control and data transmission function, and reduces the raw material cost and installation and maintenance cost, so that the signal transmission is more stable and controllable; a first isolation layer 2 is arranged at the outer periphery of the cable core 1, which is used for preventing the cable core from loosening, making the cable core structure compact, and preventing the shielding layer copper wire from breaking the insulation and causing breakdown; a shielding layer 3 is arranged at the outer periphery of the first isolation layer 2, which plays a good electrical shielding and grounding role, and the shielding layer 3 is made of flexible copper monofilament weaving, the weaving density is more than 90%, has good shielding effect, and makes the cable have good anti-interference performance and reduces external electromagnetic interference; a second isolation layer 4 is arranged at the outer periphery of the shielding layer 3, which is used for preventing the shielding layer copper wire from breaking the insulation or sheath, and the design of the two isolation layers can play a role of strengthening protection; an outer sheath 5 is arranged at the outer periphery of the second isolation layer 4, which is used for ensuring the integrity of the entire cable and protecting the cable core from damage, and the sheath 5 is made of 105 DEG C environment-friendly flame-retardant low-smoke halogen-free polyolefin material, which has good aging resistance, mechanical properties and flame retardant properties, can adapt to harsh use environment, prolongs the service life of the cable, and ensures long-term stable signal transmission in various harsh environments.

[0031] In a preferred embodiment, the data transmission line core 11 comprises a first conductor 111, a first insulation layer 112, a first sheath 113, a sub-shielding layer 114 and a second sheath 115 arranged in sequence from inside to outside;

[0032] The first conductor 111 is 7-9 flexible copper wires with a diameter of 0.15-0.18 mm; the first insulation layer 112 is polyethylene material; the first sheath 113 and the second sheath 115 are both 105 DEG C flame-retardant polyvinyl chloride materials; and the sub-shielding layer 114 is woven flexible copper monofilament.

[0033] In the embodiment, the first conductor 111 is arranged at the center of the data transmission line core 11 and mainly used for transmitting signals. The first conductor 111 is twisted by bundles of tough copper wires, which has excellent flexibility while ensuring stable signal transmission. The first conductor 111 is surrounded by the first insulating layer 112, which is used for isolating the current in the first conductor 111 to ensure the stability of the current and the safety of the outside. The first insulating layer 112 is made of cross-linked polyethylene, which has good electrical insulation performance and good mechanical properties. The first insulating layer 112 is surrounded by the first inner sheath 113, which is used for protecting the first insulating layer 112 from damage. The first inner sheath 113 is surrounded by the partial shielding layer 114, which is used for isolating the interference of external signals to ensure the stability of the conductor 111. The partial shielding layer 114 is made of woven tough copper wires with a weaving density of more than 95%, which has good signal shielding effect. The partial shielding layer 114 is surrounded by the second sheath 115, which is used for protecting the integrity of the entire data transmission line core 11 from external damage. The second sheath 115 and the first sheath 113 are both made of 105°C flame-retardant polyvinyl chloride material, which has excellent flame-retardant and mechanical and environmental properties and can protect the cable to have stable signal transmission performance in harsh environmental conditions.

[0034] In a preferred embodiment, the cable core 1 includes one data transmission line core 11, four power line cores 12, two control line cores 13, and six filler cores 14. The four power line cores 12 and the two control line cores 13 are arranged in the clockwise direction around the outer periphery of the data transmission line core 11 in sequence. The filler cores 14 are arranged between adjacent power line cores 12, between adjacent control line cores 13, and between adjacent power line cores 12 and control line cores 13.

[0035] In the embodiment, the data transmission line core 11 is located at the center position, and the four power line cores 12 and the two control line cores 13 continuously and uniformly provide stable current and signals for the data transmission line core 11. The filler cores 14 fix the positions of the power line cores 12 and the control line cores 13, making the entire structure more stable and reliable.

[0036] In a preferred embodiment, the power line core 12 includes a second conductor 121 and a second insulating layer 122 arranged around the outer periphery of the second conductor 121.

[0037] The second conductor 121 is twisted by 18-20 tough copper wires with a diameter of 0.1-0.15 mm. The second insulating layer 122 is made of 105°C flame-retardant polyvinyl chloride material.

[0038] In the embodiment, the second conductor 121 is arranged at the center of the power line core 12, mainly used for signal transmission, and is twisted by a bundle of tough copper wires, which has excellent flexibility while ensuring stable power transmission; the second insulating layer 122 is arranged at the outer periphery of the second conductor 121, used for isolating the current in the second conductor 121, ensuring the stability of the current and the safety of the outside, and the second insulating layer 122 is made of 105℃ flame-retardant polyvinyl chloride, which has a high temperature resistance level, good mechanical properties and flame retardant properties.

[0039] In a preferred embodiment, the control line core 13 comprises a third conductor 131 and a third insulating layer 132 arranged at the outer periphery of the third conductor 131.

[0040] The third conductor 131 is twisted by 14-16 tough copper wires with a diameter of 0.15-0.18 mm; the third insulating layer 132 is made of 105℃ flame-retardant polyvinyl chloride.

[0041] In the embodiment, the third conductor 131 is arranged at the center of the control line core 13, mainly used for signal transmission, and is twisted by a bundle of tough copper wires, which has excellent flexibility while ensuring stable control signal transmission; the third insulating layer 132 is arranged at the outer periphery of the third conductor 131, used for isolating the current in the third conductor 131, ensuring the stability of the current and the safety of the outside, and the third insulating layer 132 is made of 105℃ flame-retardant polyvinyl chloride, which has a high temperature resistance level, good mechanical properties and flame retardant properties.

[0042] In a preferred embodiment, the filler core 14 is a flame-retardant polypropylene filling rope.

[0043] In the embodiment, the filler core 14 can improve the roundness of the cable core, and also plays a role in resisting stretching and swinging.

[0044] In the description of the present application, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the description of the present application, the terms "one embodiment", "some embodiments" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The above only is the preferred embodiment of the present application, and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A comprehensive cable with reliable transmission performance for instruments and meters, characterized in that: The invention comprises a cable core (1); the cable core (1) comprises a data transmission core (11) and a plurality of power cores (12), a plurality of control cores (13) and a plurality of filler cores (14) distributed on the periphery of the data transmission core (11); a first isolation layer (2) is provided on the periphery of the cable core (1), a shielding layer (3) is provided on the periphery of the first isolation layer (2), a second isolation layer (4) is provided on the periphery of the shielding layer (3), and an outer sheath (5) is provided on the periphery of the second isolation layer (4).

2. The integrated cable with reliable transmission performance for instruments and meters according to claim 1 is characterized in that: The data transmission core (11) comprises a first conductor (111), a first insulating layer (112), a first sheath (113), a sub-shielding layer (114), and a second sheath (115) which are arranged in sequence from the inside to the outside.

3. The integrated cable with reliable transmission performance for instruments and meters according to claim 2 is characterized in that: The first conductor (111) is formed by twisting 7-9 0.15-0.18 mm tough copper wires; the first insulating layer (112) is made of polyethylene material; the first sheath (113) and the second sheath (115) are both made of 105°C flame-retardant polyvinyl chloride material; and the sub-shielding layer (114) is braided tough copper monofilament.

4. The integrated cable with reliable transmission performance for instruments and meters according to claim 1 is characterized in that: The cable core (1) comprises one data transmission core (11), four power supply cores (12), two control cores (13) and six filling cores (14); four power supply cores (12) and two control cores (13) are sequentially arranged on the periphery of the data transmission core (11) in a clockwise direction; and the filling cores (14) are arranged between adjacent power supply cores (12), between adjacent control cores (13), and between adjacent power supply cores (12) and control cores (13).

5. The integrated cable with reliable transmission performance for instruments and meters according to claim 1 is characterized in that: The power line core (12) comprises a second conductor (121) and a second insulating layer (122) arranged on the outer periphery of the second conductor (121).

6. The integrated cable with reliable transmission performance for instruments and meters according to claim 5, characterized in that: The second conductor (121) is formed by twisting 18-20 0.1-0.15 mm tough copper wires; and the second insulating layer (122) is made of 105° C. flame-retardant polyvinyl chloride material.

7. The integrated cable with reliable transmission performance for instruments and meters according to claim 1 is characterized in that: The control core (13) includes a third conductor (131) and a third insulating layer (132) arranged on the periphery of the third conductor (131).

8. The integrated cable with reliable transmission performance for instruments and meters according to claim 7, characterized in that: The third conductor (131) is formed by twisting 14-16 0.15-0.18 mm tough copper wires; the third insulating layer (132) is made of 105° C. flame-retardant polyvinyl chloride material.

9. The integrated cable with reliable transmission performance for instruments and meters according to claim 1, characterized in that: The filling core (14) is a flame retardant polypropylene filling rope.

10. The integrated cable with reliable transmission performance for instruments and meters according to claim 1, characterized in that: The first isolation layer (2) and the second isolation layer (4) are both polyester films; the shielding layer (3) is braided toughened copper monofilament; and the sheath (5) is 105°C environmentally friendly flame-retardant low-smoke halogen-free polyolefin material.

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