Anti-electromagnetic interference network cable
By adopting structural designs such as isolation layer, reinforcement layer, convex ring and thermal conductivity in the cable, the problems of unstable shielding effect and unsatisfactory conductivity of braided cables are solved, and higher electromagnetic shielding effect and flexibility are achieved.
Patent Information
- Application Number
- CN202421699528.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The shielding effect of existing braided cables is unstable and the conductivity is not ideal, making it difficult to achieve an ideal shielding effect in high-demand applications.
The structural design includes an isolation layer, a reinforcement layer, a first convex ring, a second convex ring, a thermal conductive layer and an insulating sleeve is adopted. Through the coordination of the isolation layer and the reinforcement layer, the electromagnetic shielding effect of the cable is improved; through the coordination of the first convex ring and the second convex ring, the flexibility of the cable is improved; through the design of the thermal conductive layer and the insulating sleeve, the conductivity and tensile resistance are improved.
It significantly improves the electromagnetic shielding effect and conductivity of the cable, enhances the flexibility and tensile resistance of the cable, and solves the problem of unsatisfactory shielding effect of braided cables in high-demand applications.
Smart Images
Figure CN222801471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to an anti-electromagnetic interference network cable. Background Art
[0002] Anti-electromagnetic interference network cables are cables designed specifically to reduce or eliminate the negative impact of external electromagnetic interference on network signal transmission. These cables are particularly important in complex electromagnetic environments such as data centers, industrial control sites, communication equipment rooms, and any place where there may be a large number of electromagnetic radiation sources.
[0003] The types of anti-electromagnetic interference network cables include shielded twisted pair and coaxial cable. Shielded twisted pair is a type of cable that adds a shielding layer to the twisted pair. It reduces the impact of external electromagnetic interference on signal transmission by wrapping the twisted pair in shielding materials such as metal braided mesh or metal foil. STP cables are widely used in network environments that require higher data transmission quality and anti-interference capabilities, such as data centers, industrial control networks, etc. Coaxial cable is also a common type of anti-electromagnetic interference network cable. It consists of a central conductor, an insulating layer, a shielding layer and an outer sheath. The shielding layer is used to block external electromagnetic interference signals. Coaxial cable is widely used in cable television, broadband networks and other fields.
[0004] However, the shielding effect of the current braided cable is not very stable, and the conductive performance of the braided layer is not very ideal. Therefore, it may be difficult to achieve an ideal shielding effect for some applications with higher requirements. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide an electromagnetic interference resistant network cable to solve the technical problem that the shielding effect of the current braided cable is not very stable and the conductive performance of the braided layer is not very ideal. Therefore, for some applications with higher requirements, it may be difficult to achieve an ideal shielding effect.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-electromagnetic interference network cable, comprising a sheath, an isolation layer is arranged in the sheath, a reinforcement layer is arranged in the isolation layer, a plurality of groups of first convex rings are fixedly connected in the reinforcement layer, a plurality of groups of second convex rings are arranged between the plurality of groups of first convex rings, a fire insulation layer is arranged at the bottom of the second convex ring, a heat conductive layer is arranged on the inner side of the fire insulation layer, a bracket is snap-connected in the heat conductive layer, a plurality of groups of conductors are arranged between the bracket and the heat conductive layer, an insulating sleeve is arranged on the outer side of the conductor, and a tear rope is arranged between the heat conductive layer and the bracket.
[0007] By adopting the above technical scheme, when in use, the isolation layer and the reinforcement layer cooperate with each other to improve the comprehensive electromagnetic shielding effect of the cable, and can provide the cable with excellent conductivity and electromagnetic shielding performance. At the same time, the first convex ring and the second convex ring cooperate with each other to improve the flexibility of the cable, and the tear rope provided can enhance the overall tensile strength of the network cable, so as to break the outer sheath of the network cable. This structure can solve the problem that the shielding effect of the current braided cable is not very stable, and the conductive performance of the braided layer is not very ideal. Therefore, for some applications with higher requirements, it may be difficult to achieve the ideal shielding effect. The practicality of the entire anti-electromagnetic interference network cable is improved.
[0008] The utility model is further configured that the isolation layer is woven from a woven copper mesh and an aluminum foil, and an electrically conductive cloth is arranged between the isolation layer and the reinforcement layer.
[0009] By adopting the above technical solution, the isolation layer formed by the woven copper mesh and aluminum foil can significantly reduce the impact of electromagnetic interference and radio frequency interference on the internal signals of the cable. The copper mesh mainly effectively shields low-frequency electromagnetic waves, while the aluminum foil is good at shielding high-frequency electromagnetic waves. The combination of the two provides a comprehensive electromagnetic shielding effect. The combination of copper and nickel on the conductive cloth can provide the cable with excellent conductivity and electromagnetic shielding performance.
[0010] The utility model is further configured such that both the first convex ring and the second convex ring are semi-arc structures, and the outer sides of the first convex ring and the second convex ring are made of conductive rubber.
[0011] By adopting the above technical solution, the first convex ring and the second convex ring are set to a semi-arc structure, so that when the cable is subjected to external force, it can be deformed along the bending direction of the first convex ring and the second convex ring, thereby absorbing and dispersing stress, so that the flexibility of the cable is improved, and the conductive rubber made by uniformly distributing conductive particles such as glass silver-plated, aluminum silver-plated, and silver in silicone rubber, and the conductive particles are brought into contact by pressure to activate the good conductive performance, so that the electromagnetic shielding effect is improved.
[0012] The utility model is further configured that the reinforcement layer is formed by compounding soft aluminum foil and polyester film.
[0013] By adopting the above technical solution, the reinforcement layer made of soft aluminum foil and polyester film can effectively prevent external electromagnetic interference from entering the cable, and at the same time can also reduce the electromagnetic radiation generated by the internal signal of the cable to the outside world, so that the anti-electromagnetic interference performance of the cable is improved.
[0014] The utility model is further configured such that the fire insulation layer is made of mineral wool material, and the heat conducting layer is made of carbon fiber material.
[0015] By adopting the above technical solution, when the fire insulation layer is made of mineral wool material, the fire resistance of the wire can be increased and the insulation performance of the wire can be improved. The heat conductive layer is made of carbon fiber material, so that the heat conductive layer can have good thermal conductivity.
[0016] The utility model is further configured that the conductor is made of copper alloy, and the insulating sleeve is made of high-density polyethylene.
[0017] By adopting the above technical solution, when the conductor is made of copper alloy, the conductivity of the cable can be improved, and the characteristics of the copper alloy itself are beneficial to improving the cable's anti-oxidation and corrosion resistance. Secondly, when the insulating sheath is made of high-density polyethylene, it is beneficial to isolate the conductor inside the wire from the external environment, prevent current leakage and short circuit, and thus ensure the safety and reliability of power transmission.
[0018] The utility model is further configured that the sheath is made of polyvinyl chloride, and the bracket is a cross frame made of plastic material.
[0019] By adopting the above technical solution, when the sheath is made of polyvinyl chloride, the sheath can effectively isolate the current between the conductor inside the wire and the external environment, and polyvinyl chloride has the characteristics of light weight and softness, which is conducive to the installation and wiring of the cable, ensuring the safety and reliability of power transmission. The cross frame made of plastic is conducive to increasing the strength and stability of the cable, thereby effectively preventing the cable from being damaged or broken.
[0020] In summary, the utility model mainly has the following beneficial effects:
[0021] 1. The utility model improves the overall electromagnetic shielding effect of the cable through the mutual cooperation between the isolation layer and the reinforcement layer, and can provide the cable with excellent conductivity and electromagnetic shielding performance. At the same time, the mutual cooperation between the first convex ring and the second convex ring is conducive to improving the flexibility of the cable, and the tear rope provided can enhance the overall tensile resistance of the network cable, so as to break the outer skin of the network cable. This structure is used to solve the problem that the shielding effect of the current braided cable is not very stable, and the conductive performance of the braided layer is not very ideal. Therefore, for some applications with higher requirements, it may be difficult to achieve the ideal shielding effect. The technical problem improves the practicality of the entire anti-electromagnetic interference network cable;
[0022] 2. The utility model sets the first convex ring and the second convex ring as a semi-arc structure, so that when the cable is subjected to external force, it can be deformed along the bending direction of the first convex ring and the second convex ring, thereby absorbing and dispersing stress, so that the flexibility of the cable is improved, and the conductive rubber made by uniformly distributing conductive particles such as glass silver-plated, aluminum silver-plated, and silver in silicone rubber, and the conductive particles are brought into contact by pressure to activate the good conductive properties, so that the electromagnetic shielding effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall result of the utility model;
[0024] Figure 2 This is a schematic diagram of the internal structure of the utility model from a first perspective;
[0025] Figure 3 It is a schematic diagram of the internal structure of the utility model from a second viewing angle;
[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model from a first viewing angle;
[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model from a second viewing angle.
[0028] In the figure: 1, sheath; 2, isolation layer; 3, reinforcement layer; 4, second convex ring; 5, fire insulation layer; 6, heat conductive layer; 7, bracket; 8, insulating sleeve; 9, conductor; 10, tear rope; 11, first convex ring. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0030] The following describes an embodiment of the utility model based on its overall structure.
[0031] An electromagnetic interference resistant network cable, such as Figure 1-5 As shown, it includes a sheath 1, an isolation layer 2 is arranged in the sheath 1, a reinforcement layer 3 is arranged in the isolation layer 2, a plurality of groups of first convex rings 11 are fixedly connected in the reinforcement layer 3, a plurality of groups of second convex rings 4 are arranged between the plurality of groups of first convex rings 11, a fire insulation layer 5 is arranged at the bottom of the second convex ring 4, a heat conductive layer 6 is arranged on the inner side of the fire insulation layer 5, a bracket 7 is snap-connected in the heat conductive layer 6, a plurality of groups of conductors 9 are arranged between the bracket 7 and the heat conductive layer 6, an insulating sleeve 8 is arranged on the outer side of the conductor 9, and a tear rope 10 is arranged between the heat conductive layer 6 and the bracket 7.
[0032] When in use, the isolation layer 2 and the reinforcement layer 3 cooperate with each other to improve the comprehensive electromagnetic shielding effect of the cable, and can provide the cable with excellent conductivity and electromagnetic shielding performance. At the same time, the first convex ring 11 and the second convex ring 4 cooperate with each other to improve the flexibility of the cable, and the tear rope 10 provided can enhance the overall tensile resistance of the network cable, so as to break the outer sheath of the network cable. This structure can solve the problem that the shielding effect of the current braided cable is not very stable, and the conductive performance of the braided layer is not very ideal. Therefore, for some applications with higher requirements, it may be difficult to achieve the ideal shielding effect. The practicality of the entire anti-electromagnetic interference network cable is improved.
[0033] The further arranged isolation layer 2 formed by the woven copper mesh and the aluminum foil can significantly reduce the influence of electromagnetic interference and radio frequency interference on the internal signal of the cable. The copper mesh mainly effectively shields low-frequency electromagnetic waves, while the aluminum foil is good at shielding high-frequency electromagnetic waves. The combination of the two provides a comprehensive electromagnetic shielding effect. Through the combination of copper and nickel on the conductive cloth, the cable can be provided with excellent conductivity and electromagnetic shielding performance. The first convex ring 11 and the second convex ring 4 are set as a semi-arc structure, so that when the cable is subjected to external force, it can be deformed along the bending direction of the first convex ring 11 and the second convex ring 4, thereby absorbing and dispersing stress, so that the flexibility of the cable is improved. In addition, the conductive rubber made by evenly distributing conductive particles such as glass silver-plated, aluminum silver-plated, and silver in the silicone rubber has good conductive properties when the conductive particles are brought into contact by pressure, so that the electromagnetic shielding effect is improved.
[0034] In this embodiment, the reinforcement layer 3 made of a composite of soft aluminum foil and polyester film can effectively prevent external electromagnetic interference from entering the interior of the cable, and can also reduce the electromagnetic radiation generated by the internal signal of the cable to the outside world, so that the anti-electromagnetic interference performance of the cable is improved. When the fire insulation layer 5 is made of mineral wool material, the fire resistance of the wire can be increased, and the insulation performance of the wire can be improved. The thermal conductive layer 6 is made of carbon fiber material, so that the thermal conductive layer 6 has good thermal conductivity. Secondly, when the conductor 9 is made of copper alloy, the electrical conductivity of the cable can be improved. The characteristics of the copper alloy itself are conducive to improving the oxidation resistance and corrosion resistance of the cable. Secondly, when the insulating sleeve 8 is made of high-density polyethylene, it is conducive to isolating the conductor 9 inside the wire from the external environment, preventing current leakage and short circuit, thereby ensuring the safety and reliability of power transmission. When the finally set sheath 1 is made of polyvinyl chloride, the sheath 1 can effectively isolate the current between the conductor 9 inside the wire and the external environment. Polyvinyl chloride has the characteristics of light weight and softness, which is conducive to the installation and wiring of the cable and ensures the safety and reliability of power transmission. The cross frame made of plastic is conducive to increasing the strength and stability of the cable, thereby effectively preventing the cable from being damaged or broken.
[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. An anti-electromagnetic interference network cable, comprising a sheath (1), characterized in that: An isolation layer (2) is provided in the sheath (1), a reinforcement layer (3) is provided in the isolation layer (2), a plurality of groups of first convex rings (11) are fixedly connected in the reinforcement layer (3), a plurality of groups of second convex rings (4) are provided between the plurality of groups of the first convex rings (11), a fire insulation layer (5) is provided at the bottom of the second convex ring (4), a heat conduction layer (6) is provided inside the fire insulation layer (5), a bracket (7) is snap-connected inside the heat conduction layer (6), a plurality of groups of conductors (9) are provided between the bracket (7) and the heat conduction layer (6), an insulating sleeve (8) is provided outside the conductor (9), and a tear rope (10) is provided between the heat conduction layer (6) and the bracket (7).
2. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The isolation layer (2) is woven from a braided copper mesh and an aluminum foil, and an electrically conductive fabric is provided between the isolation layer (2) and the reinforcement layer (3).
3. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The first convex ring (11) and the second convex ring (4) are both semi-arc structures, and the outer sides of the first convex ring (11) and the second convex ring (4) are both made of conductive rubber.
4. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The reinforcement layer (3) is a composite of soft aluminum foil and polyester film.
5. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The fire insulation layer (5) is made of mineral wool, and the heat conducting layer (6) is made of carbon fiber.
6. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The conductor (9) is made of copper alloy, and the insulating sleeve (8) is made of high-density polyethylene.
7. The anti-electromagnetic interference network cable according to claim 1, characterized in that: The sheath (1) is made of polyvinyl chloride, and the bracket (7) is a cross frame made of plastic material.