Disclosure of utility model
In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide a composite cable that can integrate functions such as power supply, signal control, and data transmission, make signal transmission more stable and controllable, and reduce raw material costs and installation and maintenance costs, and has reliable transmission performance for instruments and meters.
The utility model provides a comprehensive cable with reliable transmission performance for instruments and meters, which comprises a cable core, wherein the cable core comprises a data transmission wire core, a plurality of power wire cores, a plurality of control wire cores and a plurality of filler cores, the power wire cores, the control wire cores and the filler cores 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.
Further, the data transmission line core comprises a first conductor, a first insulating layer, a first sheath, a sub-shielding layer and a second sheath which are sequentially arranged from inside to outside.
Further, the first conductor is formed by twisting 7-9 tough copper wires with the thickness of 0.15-0.18mm, the first insulating layer is made of polyethylene materials, the first sheath and the second sheath are both made of 105 ℃ flame-retardant polyvinyl chloride materials, and the sub-shielding layers are woven tough copper monofilaments.
Further, the cable core includes 1 data transmission core, 4 power supply core, 2 control cores and 6 core that fill out, and data transmission core's periphery sets gradually 4 power supply core and 2 control cores along clockwise, all is provided with between the adjacent power supply core, between the adjacent control core, between adjacent power supply core and the control core and fills out the core.
Further, the power core comprises a second conductor and a second insulating layer arranged on the periphery of the second conductor.
Further, the second conductor is formed by twisting 18-20 0.1-0.15mm tough copper wires, and the second insulating layer is a 105 ℃ flame-retardant polyvinyl chloride material.
Further, the control wire core comprises a third conductor and a third insulating layer arranged on the periphery of the third conductor.
Further, the third conductor is formed by twisting 14-16 0.15-0.18mm tough copper wires, and the third insulating layer is a 105 ℃ flame-retardant polyvinyl chloride material.
Further, the filling core is a flame-retardant polypropylene filling rope.
Furthermore, the first isolation layer and the second isolation layer are both polyester films, the shielding layer is braided tough copper monofilaments, and the sheath is 105 ℃ environment-friendly flame-retardant low-smoke halogen-free polyolefin material.
Compared with the prior art, the utility model has the beneficial effects that:
the cable core comprises a data transmission wire core, a plurality of power wire cores, a plurality of control wire cores and a plurality of filler cores, wherein the power wire cores, the control wire cores and the filler cores 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. The utility model can realize the integration of power supply, signal control and data transmission functions, reduce the raw material cost and the installation and maintenance cost, and ensure that the signal transmission is more stable and controllable.
It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of an integrated cable;
FIG. 2 is a schematic cross-sectional view of an integrated cable;
In the figure, the reference numerals are 1, a cable core, 2, a first isolation layer, 3, a shielding layer, 4, a second isolation layer and 5, a sheath;
11. the cable comprises a data transmission cable core, a power cable core, a control cable core, a 14 filling cable core, a data transmission cable core and a power cable core;
111. First conductor, 112, first insulating layer, 113, inner sheath, 114, sub-shielding layer, 115, outer sheath;
121. A second conductor 122, a second insulating layer;
131. And 132, a third conductor and a third insulating layer.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1-2, an embodiment of the utility model provides a composite cable with reliable transmission performance for instruments and meters, which comprises a cable core 1, wherein the cable core 1 comprises a data transmission wire core 11, a plurality of power wire cores 12 distributed on the periphery of the data transmission wire core 11, a plurality of control wire cores 13 and a plurality of filling cores 14, the periphery of the cable core 1 is provided with a first isolation layer 2, the periphery of the first isolation layer 2 is provided with a shielding layer 3, the periphery of the shielding layer 3 is provided with a second isolation layer 4, and the periphery of the second isolation layer 4 is provided with an outer sheath 5;
the first isolation layer 2 and the second isolation layer 4 are both made of polyester films, the shielding layer 3 is made of braided tough copper monofilaments, and the sheath 5 is made of 105 ℃ environment-friendly flame-retardant low-smoke halogen-free polyolefin material.
In this embodiment, the cable core 1 is disposed in the center of the composite cable, the cable core 1 includes a data transmission core 11 for providing an excellent communication transmission function for the cable, a power source core 12 for continuously providing a power source for the cable, a control core 13 for continuously performing signal transmission and control for the cable, and a filler core 14 for ensuring stability of the cable core 1 and playing a role in resisting stretching and swinging, and the data transmission core 11 is a coaxial communication cable, which has excellent capacitance, inductance and characteristic impedance, can realize integration of the power source supply, signal control and data transmission functions, and reduces raw material cost and installation and maintenance cost, so that signal transmission is more stable and controllable; the periphery of the cable core 1 is provided with a first isolation layer 2 for preventing the cable core from loosening, ensuring the cable core structure of the cable to be compact, preventing the copper wires of the shielding layer from being punctured and broken down, the periphery of the first isolation layer 2 is provided with a shielding layer 3 for playing a role in good electric shielding and grounding, the shielding layer 3 is formed by braiding toughened copper monofilaments, the braiding density is more than 90 percent, the cable has good shielding effect, the cable has good anti-interference performance, the external electromagnetic interference is reduced, the periphery of the shielding layer 3 is provided with a second isolation layer 4 for preventing the copper wires of the shielding layer from puncturing the insulation or the sheath, the design of the two isolation layers can play a role in reinforcing and protecting, the periphery of the second isolation layer 4 is provided with an outer sheath 5 for ensuring the integrity of the whole cable, protecting the cable core from being damaged, the sheath 5 adopts 105 ℃ environment-friendly flame-retardant low-smoke halogen-free polyolefin material which has good ageing resistance, mechanical property and flame retardant property, can adapt to severe service environment, and prolong the service life of the cable, ensuring that it transmits signals stably for a long period of time in various severe environments.
In a preferred embodiment, the data transmission core 11 includes a first conductor 111, a first insulating layer 112, a first sheath 113, a sub-shielding layer 114, and a second sheath 115 sequentially disposed from inside to outside;
The first conductor 111 is formed by twisting 7-9 tough copper wires with the thickness of 0.15-0.18mm, the first insulating layer 112 is made of polyethylene, the first sheath 113 and the second sheath 115 are both made of 105 ℃ flame-retardant polyvinyl chloride materials, and the sub-shielding layer 114 is made of braided tough copper monofilaments.
In the embodiment, a first conductor 111 is arranged at the center of a data transmission wire core 11 and is mainly used for transmitting signals, the first conductor 111 is formed by twisting a tough copper wire bundle, the stability of signal transmission is ensured, meanwhile, the high flexibility performance is achieved, a first insulating layer 112 is arranged at the periphery of the first conductor 111 and is used for isolating current in the first conductor 111 and ensuring the stability of the current and the safety of the outside, cross-linked polyethylene is adopted for the first insulating layer 112, the material has good electrical insulation performance and good mechanical performance, a first inner sheath 113 is arranged at the periphery of the first insulating layer 112 and is used for protecting the first insulating layer 112 from being damaged, a sub-shielding layer 114 is arranged at the periphery of the first inner sheath 113 and is used for isolating the interference of external signals, the stability of the conductor 111 is ensured, braided copper wires are adopted for the sub-shielding layer 114, the braiding density is above 95%, the high signal shielding effect is achieved, a second sheath 115 is arranged at the periphery of the sub-shielding layer 114 and is used for protecting the integrity of the whole data transmission wire core 11 from being damaged by the outside, the second sheath 115 and the first sheath 105 and the first sheath 113 are made of a flame-retardant cable, and the cable has the high flame-retardant performance and the high environment-friendly performance.
In a preferred embodiment, the cable core 1 includes 1 data transmission core 11, 4 power supply cores 12, 2 control cores 13 and 6 filler cores 14, the periphery of the data transmission core 11 is sequentially provided with 4 power supply cores 12 and 2 control cores 13 along the clockwise direction, and filler cores 14 are respectively arranged between adjacent power supply cores 12, between adjacent control cores 13, and between adjacent power supply cores 12 and control cores 13.
In this embodiment, the data transmission wire core 11 is located at the center, and the 4 power wire cores 12 and the 2 control wire cores 13 continuously and uniformly provide stable current and signals for the data transmission wire core 11, and the filling core 14 fixes the positions of the power wire cores 12 and the control wire cores 13, so that the whole structure is more stable and firm.
In a preferred embodiment, the power core 12 includes a second conductor 121 and a second insulating layer 122 disposed on an outer periphery of the second conductor 121;
The second conductor 121 is formed by twisting 18-20 0.1-0.15mm tough copper wires, and the second insulating layer 122 is a 105 ℃ flame-retardant polyvinyl chloride material.
In the embodiment, the second conductor 121 is arranged at the center of the power wire core 12 and is mainly used for signal transmission, the second conductor 121 is formed by twisting a tough copper wire bundle, the stable transmission of a power supply is ensured, meanwhile, the power wire core has excellent flexibility, the second conductor 121 is provided with a second insulating layer 122 at the periphery, which is used for isolating the current in the second conductor 121 and 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, so that the material has higher temperature resistance level, good mechanical property and flame retardance.
In a preferred embodiment, the control wire core 13 includes a third conductor 131 and a third insulating layer 132 disposed on the outer periphery of the third conductor 131;
the third conductor 131 is formed by twisting 14-16 0.15-0.18mm tough copper wires, and the third insulating layer 132 is a 105 ℃ flame-retardant polyvinyl chloride material.
In the embodiment, the center of the control wire core 13 is provided with a third conductor 131, which is mainly used for signal transmission, the third conductor 131 is formed by twisting a tough copper wire bundle, the stable transmission of control signals is ensured, meanwhile, the control wire core has excellent flexibility, the periphery of the third conductor 131 is provided with a third insulating layer 132, which is 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, and the material has higher temperature resistance level, good mechanical property and flame retardance.
In a preferred embodiment, the filler 14 is a fire retardant polypropylene filler rope.
In this embodiment, the filler 14 can increase the rounding degree of the cable core, and also has the functions of stretching resistance and swinging resistance.
In the description of the present specification, the terms "connected," "mounted," "fixed," and the like are to be construed broadly, and "connected" may be, for example, a fixed connection, a detachable connection, or an integral connection, and may be directly connected or indirectly connected through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.