CN220651692U - Electromagnetic interference prevention control cable - Google Patents
Electromagnetic interference prevention control cable Download PDFInfo
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- CN220651692U CN220651692U CN202322351415.0U CN202322351415U CN220651692U CN 220651692 U CN220651692 U CN 220651692U CN 202322351415 U CN202322351415 U CN 202322351415U CN 220651692 U CN220651692 U CN 220651692U
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Abstract
The utility model discloses an electromagnetic interference prevention control cable, which comprises a cable core, a filling layer, an inner shielding layer, an outer shielding layer, an inner protecting layer, an armor layer and an outer protecting layer, wherein the cable core comprises a power transmission cable and an armored optical cable, a plurality of power transmission cables are arranged outside the armored optical cable in a two-to-two split state and are contacted with the outer side surface of the armored optical cable positioned in the center of the armored optical cable, a plurality of tensile reinforcement pieces are filled in a gap between the outer side of the armored optical cable and the power transmission cable, the inner shielding layer is wrapped on the outer side of the cable core to form a circular section structure, the filling layer is filled among the cable cores, and the outer shielding layer, the inner protecting layer, the armor layer and the outer protecting layer are sequentially arranged outside the inner shielding layer from inside to outside. The control cable disclosed by the utility model not only can realize multiple purposes, but also can improve the electromagnetic interference resistance and tensile resistance of the control cable, ensures stable transmission performance of the cable in a long-term use process, has strong practicability and has wide application places.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to an electromagnetic interference prevention control cable.
Background
The power cable industry is used as an important supporting industry of national economy, along with the high-speed development of national economy, the application of control cables is more and more wide, and along with the continuous expansion of the industries such as the China power industry, the data communication industry, the urban rail transit industry, the automobile industry, the manufacturing and processing industry and the like, the demand for the power cables is also rapidly increased. As an electric wire for transmitting and distributing electric power, an electric power cable, which is an important transmission medium indispensable for industrial and civil use, has been widely used in various fields at present. With the development of technology and the change of market, the demand for power cables is also rapidly increasing.
The existing control cables and optical cables mainly have the following problems in the production and installation processes: firstly, in the cable forming process, weaving, sheathing and other processing processes, optical fibers are subjected to bending, extrusion or stretching, so that the optical fibers are easy to be unqualified in attenuation and even broken, and the product performance is affected. Secondly, when current consumer is being connected, need 2 wiring mouths, correspond control cable wiring mouth and optical cable wiring mouth respectively, just need lay these two kinds of products of control cable and optical cable, if these two kinds of products are separately laid the installation, not only there is a large amount of laying engineering, occupies a large amount of laying space moreover.
The control cable prepared at present has poor anti-interference capability and low tensile strength according to customer feedback, firstly, under the condition that the electromagnetic radiation influence of equipment workplaces is large, a single-layer woven structure is adopted, and the signal transmission of the optical cable is influenced due to external factors such as the electromagnetic radiation, so that the normal use of the equipment is influenced; secondly, under the condition that the installation environment and the condition of the use environment are severe, when the cable is bent or due to external factors such as collision, the normal use of the product is easily influenced in the use process, and the signal transmission is not facilitated.
Through searching, patent document with the authority bulletin number of CN217955538U discloses an electromagnetic interference prevention control cable, and patent document with the authority bulletin number of CN212461242U discloses an electromagnetic interference prevention multi-shaft control cable. From the disclosure of the two patent documents retrieved, a control cable satisfying the use requirements is provided from different angles, respectively. Along with the high-speed development of national economy, the application of the power cable is also becoming wider and wider. To enhance the competitiveness of the enterprise, the market share is increased, thereby providing a control cable different from that disclosed in the prior art so as to satisfy the use.
Disclosure of Invention
The utility model aims at solving the problems in the background technology, thereby providing the control cable with simple structure and stable performance, and by utilizing the control cable, the anti-interference capability and the tensile strength of the control cable can be enhanced, so that the safety performance and the service life of the control cable are improved, and the use requirement of a user is met, in particular to the control cable for preventing electromagnetic interference.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an electromagnetic interference prevention's control cable, includes cable core, filling layer, interior shielding layer, outer shielding layer, interior sheath, armor and outer sheath, the cable core is including power transmission cable and armor optical cable the armor optical cable outside is equipped with many power transmission cables, and many power transmission cables are two liang of looks state and arranges to contact with the armor optical cable lateral surface that is located its center the clearance department between armor optical cable outside and the power transmission cable still is filled with many tensile reinforcement, interior shielding layer forms circular cross-section structure around the package in the cable core outside, and it has the filling layer to fill between many cable cores the interior shielding layer is equipped with outer shielding layer, interior sheath, armor and outer sheath from interior to exterior in proper order outward.
Further, by adopting the control cable, six power cables are arranged, the six power cables are annularly and uniformly distributed on the outer sides of the armored optical cables and are distributed in a tangential state with the outer sides of the armored optical cables positioned in the center of the six power cables; and four or six tensile reinforcement pieces are arranged, and the plurality of tensile reinforcement pieces are symmetrically distributed at the gap between the outer side of the armored optical cable and the power transmission cable.
Further, by adopting the control cable disclosed by the utility model, the power transmission cable is composed of a conductor and an insulating layer arranged outside the conductor; the armored optical cable consists of an optical fiber and a metal armor layer arranged outside the optical fiber.
Further, by adopting the control cable disclosed by the utility model, the conductor is a tinned copper stranded conductor, and the conductor is formed by stranding a plurality of 5 th tinned copper conductors meeting the GB/T3956-2008 rule according to pitch.
Further, by adopting the control cable disclosed by the utility model, the insulating layer is formed by extrusion molding of fluoroplastic insulating materials.
Further, with the control cable of the present utility model, the tensile reinforcement is wound with aramid fiber material to form a circular cross-sectional structure.
Further, by adopting the control cable disclosed by the utility model, the filling layer is filled in a gap between two adjacent groups of cable cores in the inner shielding layer by adopting the flame-retardant PP filling rope material, and a circular cross-section structure is formed between the inner shielding layer and the plurality of cable cores through the filling layer.
Further, by adopting the control cable disclosed by the utility model, the inner shielding layer is formed by overlapping and wrapping the aluminum-plastic composite tape, the overlapping coverage rate is controlled to be between 10 and 20%, and the number of wrapping layers is 2 to 3.
Further, by adopting the control cable disclosed by the utility model, the outer shielding layer is formed by a first shielding layer and a second shielding layer, wherein the first shielding layer is formed by wrapping a tinned copper conductor, the second shielding layer is reversely wrapped on the outer wall of the first shielding layer by adopting an aramid fiber woven layer, and the covering rate of wrapping belts of the first shielding layer and the second shielding layer is controlled to be between 35 and 45%.
Further, by adopting the control cable disclosed by the utility model, the inner protective layer and the outer protective layer are both formed by extrusion of halogen-free low-smoke flame-retardant polyolefin materials, and the armor layer is formed by interlocking armor wrapping of a stainless steel belt.
The electromagnetic interference prevention control cable is characterized in that a power transmission cable and an armored optical cable are combined into a cable core, an inner shielding layer and an outer shielding layer are arranged outside the cable core, and a tensile reinforcement is arranged in a filling layer between the cable cores.
In summary, the control cable disclosed by the utility model can realize the purpose of multiple purposes of one cable, can also improve the electromagnetic interference resistance and tensile resistance of the control cable, greatly enhances the flexibility of the cable, improves the service performance of products, ensures the stable transmission performance of the cable in the long-term use process, has strong practicability and has wide application places.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present utility model.
The figure shows: 1-electric cable, 11-conductor, 12-insulating layer, 2-armoured optical cable, 21-optical fiber, 22-metal armour layer, 3-filling layer, 4-inner shielding layer, 5-outer shielding layer, 6-inner sheath, 7-armour layer, 8-outer sheath, 9-tensile reinforcement.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper", "lower", "left", "right" and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected", "provided" and "having a meaning of" connected "are to be interpreted in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, the electromagnetic interference prevention control cable comprises a cable core, a filling layer 3, an inner shielding layer 4, an outer shielding layer 5, an inner protecting layer 6, an armor layer 7 and an outer protecting layer 8, wherein the cable core comprises a power transmission cable 1 and an armor optical cable 2, a plurality of power transmission cables 1 are arranged outside the armor optical cable 2, the power transmission cables 1 are arranged in a two-to-two phase state and are in contact with the outer side surface of the armor optical cable 2 positioned in the center of the power transmission cables, a plurality of tensile reinforcing pieces 9 are filled in a gap between the outer side of the armor optical cable 2 and the power transmission cable 1, the inner shielding layer 4 is wrapped outside the cable core to form a circular cross-section structure, the filling layer 3 is filled among the cable cores, and the outer shielding layer 5, the inner protecting layer 6, the armor layer 7 and the outer protecting layer 8 are sequentially arranged outside the inner shielding layer 4 from inside to outside.
In the specific manufacturing process, a 1+6 structure is adopted, namely 1 armored optical cable 2 and 6 power cables 1 are adopted, and six power cables 1 are annularly and uniformly distributed on the outer sides of the armored optical cables 2 and are tangentially distributed with the outer sides of the armored optical cables 2 positioned in the center of the armored optical cables; and four tensile reinforcement pieces 9 are arranged, and the four tensile reinforcement pieces 9 are symmetrically distributed at the gap between the outer side of the armored optical cable 2 and the power transmission cable 1. The power transmission cable 1 is composed of a conductor 11 and an insulating layer 12 arranged outside the conductor 11; the armored optical cable 2 consists of an optical fiber 21 and a metal armor layer 22 arranged outside the optical fiber 21; the conductor 11 is a tinned copper stranded conductor, and the conductor 11 is formed by stranding a plurality of 5 th tinned copper conductors meeting the GB/T3956-2008 rule according to pitch. The insulating layer 12 is formed by extrusion molding of fluoroplastic insulating material.
The 5 th tin-plated copper conductor defined by GB/T3956-2008 is stranded to form the conductor 11, tin is stable in air at normal temperature, a layer of compact oxide film is generated on the surface of tin to prevent continuous oxidation of tin, oxidation resistance of copper can be improved to a certain extent when tin is plated on the surface of copper, stability, conductivity, wear resistance, corrosion resistance and electromagnetic shielding property of tin-plated copper are good, the tin-plated copper is used as the conductor 11, pitch is small, and the cable has a small bending radius.
The insulating layer 12 is made of a fluoroplastic insulating material, wherein the fluoroplastic is a plastic generic term containing fluorine atoms in a molecular structure, and is prepared from fluorine-containing monomers, such as tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, vinylidene fluoride, vinyl fluoride and the like, through homopolymerization or copolymerization. Since fluorine atoms are contained in the molecular structure of the fluoroplastic, the fluoroplastic has many excellent properties such as excellent electrical insulation properties, high heat resistance, outstanding oil resistance, solvent resistance and abrasion resistance, good moisture resistance and low temperature resistance. Therefore, in the production of electric wires and cables, common fluoroplastics include polytetrafluoroethylene, polyperfluoroethylene propylene, polyvinylidene fluoride, tetrafluoroethylene and ethylene copolymers, etc., which are used for manufacturing various heat-resistant and high-temperature insulated wires, F-stage and H-stage motor lead wires, irradiation-resistant wires, electromagnetic wires, radio frequency coaxial cables, etc. Therefore, the fluoroplastic has high dielectric strength and insulation resistance, high stability, almost no influence of temperature change, excellent weather-resistant performance and mechanical strength, and extraordinary thermal stability, so that the fluoroplastic cable can adapt to a high-temperature environment of 150-200 ℃, and common polyethylene and polyvinyl chloride cables are only suitable for a working environment of 70-90 ℃. In addition, under the condition of the same section conductor, the fluoroplastic cable can transmit larger allowable current, so that the application range of the cable is greatly improved.
The aramid fiber is also called aramid fiber, and is used as the tensile reinforcement 9, and the aramid fiber material is wound into a circular cross-section structure, so that the tensile strength of the armored optical cable 2 can be improved, and the influence of excessive bending times of an optical unit on optical attenuation and the influence on the product performance due to fiber breakage in the cabling process can be effectively prevented.
The filling layer 3 is filled in gaps between two adjacent groups of cable cores in the inner shielding layer 4 by adopting flame-retardant PP filling rope materials, and a circular cross-section structure is formed between the inner shielding layer 4 and the plurality of cable cores through the filling layer 3. After the cable is formed, the Cheng Tianchong flame-retardant PP filling rope material can form a stable round structure by improving the cable roundness, so that the stability of a cable core of the cable is improved, the service life of an insulating core wire is prolonged, the problem of twist shape in the subsequent process is prevented, and the flame retardant property of the cable can be improved.
The inner shielding layer 4 is formed by overlapping and wrapping an aluminum-plastic composite belt, the overlapping coverage rate is controlled between 10% and 20%, and the wrapping layer number is 2-3. The aluminum-plastic composite belt is adopted as the inner shielding layer 4, the multilayer shielding effect is provided, the good water blocking effect is achieved, and rainwater penetration is prevented.
The outer shielding layer 5 is composed of a first shielding layer and a second shielding layer, wherein the first shielding layer is formed by wrapping a tinned copper conductor, the second shielding layer is reversely wrapped on the outer wall of the first shielding layer by an aramid fiber woven layer, and the cover rate of wrapping belts of the first shielding layer and the second shielding layer is controlled between 35% and 45%. Adopting a double-layer shielding mode, and weaving by utilizing a tinned conductor and aramid fibers to achieve shielding against electromagnetic interference, eliminating cable surface electricity, binding power lines and eliminating induced electricity; the aramid is also called aramid, is a novel high-tech synthetic fiber, has excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, has the strength of 5-6 times of steel wires, the modulus of 2-3 times of steel wires or glass fibers, has the toughness of 2 times of steel wires, has the weight of only about 1/5 of that of the steel wires, and is not decomposed or melted at the temperature of 560 ℃. The cable has good insulativity and ageing resistance, has a long life cycle, adopts aramid fiber as an outer shielding layer, can effectively improve the tensile strength of the cable, and prevents the cable from mechanical damage caused by too small bending radius.
The inner sheath 6 and the outer sheath 8 are formed by extrusion of halogen-free low-smoke flame-retardant polyolefin materials, the halogen-free low-smoke flame-retardant polyolefin materials have good flame-retardant and heat-absorbing effects, and also have the characteristics of special wear resistance, excellent water resistance, weather resistance, ageing resistance and the like. The halogen-free low-smoke flame-retardant polyolefin material is adopted as the protective layer, so that the halogen-free low-smoke flame-retardant polyolefin material has good processability, a special flame-retardant structure and completely environment-friendly product performance, and the comprehensive performance of the product can be enhanced. The armor 7 is formed by wrapping stainless steel belt interlocking armor, has certain water blocking performance, protects the internal structure from being damaged by external mechanical force, effectively protects the internal structure of the cable from being stable, and can effectively improve the tensile strength of the cable when the cable is possibly damaged by external force or needs to bear the dead weight of a large span.
The control cable adopts a 1+6 structure, namely 1 armored optical cable 2 and 6 power cables 1, can form a stable structure, has compact structure and small occupied space, is filled with flame-retardant PP filling rope materials at the gaps, enhances the roundness of the cable, and forms a filling layer 3, so that the cable can not only form a stable round structure, but also improve the flame-retardant property of the cable; and four tensile reinforcement pieces 9 formed by winding aromatic amide fibers are utilized, so that the influence of excessive bending times on the light attenuation of the optical cable and the breakage of the optical fiber in the cable forming and using processes of the cable is avoided, the product performance is influenced, and the tensile capacity of the cable is greatly improved. The aluminum-plastic composite belt is adopted as the inner shielding layer 4, so that the cylindrical shape of wires can be kept after the wires are cabled, the cable core is prevented from loosening after the wires are cabled, and the shielding effect of the wires can be enhanced; the outer shielding layer 5 adopts a double-layer shielding mode, and is woven by utilizing a tinned conductor and aramid fiber, so that the effects of shielding against electromagnetic interference, eliminating cable surface electricity, binding power lines and eliminating induced electricity can be achieved, and the electromagnetic interference resistance of the cable is enhanced; in addition, the inner sheath 6 and the outer sheath 8 are both formed by extrusion of halogen-free low-smoke flame-retardant polyolefin materials, so that the prepared cable has halogen-free low-smoke flame-retardant performance; the armor layer 7 is formed by wrapping stainless steel strips in a interlocking manner, so that the comprehensive performance of the cable can be effectively improved, the use requirement of a user is met, and the normal operation of electric equipment is ensured.
Other aspects of the utility model are not specifically described and are well known to those skilled in the art.
In summary, the control cable disclosed by the utility model can realize the purpose of multiple purposes of one cable, can also improve the electromagnetic interference resistance and tensile resistance of the control cable, greatly enhances the flexibility of the cable, improves the service performance of products, ensures the stable transmission performance of the cable in the long-term use process, has strong practicability and has wide application places.
The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, but the above description is only a preferred embodiment of the present utility model, and is not limited to the present utility model, and any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present utility model should be included in the protection scope of the technical solutions of the present utility model.
Claims (10)
1. The utility model provides an electromagnetic interference prevention's control cable, including cable core, filling layer (3), interior shielding layer (4), outer shielding layer (5), interior sheath (6), armor (7) and outer sheath (8), its characterized in that: the cable core is including power transmission cable (1) and armoured optical cable (2) the armoured optical cable (2) outside is equipped with many power transmission cable (1), and many power transmission cable (1) are two liang phase-cut state and arrange to contact with armoured optical cable (2) lateral surface that is located its center the space department between armoured optical cable (2) outside and power transmission cable (1) still is filled with many tensile reinforcement (9), interior shielding layer (4) form circular cross-section structure in the cable core outside around the package, fill between many cable cores have filling layer (3) interior shielding layer (4) are equipped with outer shielding layer (5), interior sheath (6), armor (7) and outer sheath (8) outward from interior to exterior in proper order.
2. An electromagnetic interference preventing control cable according to claim 1, wherein: six power transmission cables (1) are arranged, the six power transmission cables (1) are annularly and uniformly distributed on the outer sides of the armored optical cables (2), and are distributed in a tangential state with the outer sides of the armored optical cables (2) positioned in the center of the power transmission cables; and four or six tension reinforcing pieces (9) are arranged, and the tension reinforcing pieces (9) are symmetrically distributed at the gap between the outer side of the armored optical cable (2) and the power transmission cable (1).
3. An electromagnetic interference preventing control cable according to claim 2, wherein: the power transmission cable (1) is composed of a conductor (11) and an insulating layer (12) arranged outside the conductor (11); the armored optical cable (2) is composed of an optical fiber (21) and a metal armor layer (22) arranged outside the optical fiber (21).
4. A control cable for preventing electromagnetic interference according to claim 3, wherein: the conductor (11) is a tinned copper stranded conductor, and the conductor (11) is formed by stranding a plurality of 5 th tinned copper conductors meeting the GB/T3956-2008 rule according to pitch.
5. A control cable for preventing electromagnetic interference according to claim 3, wherein: the insulating layer (12) is formed by extrusion molding of fluoroplastic insulating material.
6. An electromagnetic interference preventing control cable according to claim 2, wherein: the tensile reinforcement (9) is wound by adopting an aromatic amide fiber material to form a circular cross-section structure.
7. An electromagnetic interference preventing control cable according to claim 1, wherein: the filling layer (3) is filled in gaps between two adjacent groups of cable cores in the inner shielding layer (4) by flame-retardant PP filling rope materials, and a circular cross-section structure is formed between the inner shielding layer (4) and the plurality of cable cores through the filling layer (3).
8. An electromagnetic interference preventing control cable according to claim 1, wherein: the inner shielding layer (4) is formed by overlapping and wrapping an aluminum-plastic composite belt, the overlapping coverage rate is controlled between 10% and 20%, and the number of wrapping layers is 2-3.
9. An electromagnetic interference preventing control cable according to claim 1, wherein: the outer shielding layer (5) is composed of a first shielding layer and a second shielding layer, wherein the first shielding layer is formed by wrapping a tinned copper conductor, the second shielding layer is reversely wrapped on the outer wall of the first shielding layer by an aramid fiber woven layer, and the cover rate of wrapping belts of the first shielding layer and the second shielding layer is controlled between 35% and 45%.
10. An electromagnetic interference preventing control cable according to claim 1, wherein: the inner protective layer (6) and the outer protective layer (8) are formed by extrusion of halogen-free low-smoke flame-retardant polyolefin materials, and the armor layer (7) is formed by interlocking armor wrapping of a stainless steel belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351415.0U CN220651692U (en) | 2023-08-31 | 2023-08-31 | Electromagnetic interference prevention control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322351415.0U CN220651692U (en) | 2023-08-31 | 2023-08-31 | Electromagnetic interference prevention control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220651692U true CN220651692U (en) | 2024-03-22 |
Family
ID=90291711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322351415.0U Active CN220651692U (en) | 2023-08-31 | 2023-08-31 | Electromagnetic interference prevention control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220651692U (en) |
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2023
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