High temperature resistant cable shielding layer structure

Abstract

The utility model relates to cable technical field especially relates to a kind of high-temperature-resistant cable shielding layer structure, including wire core, insulating layer, filling layer, shielding layer and outermost layer, the wire core has multiple copper wires, and the axis of each copper wire is mutually parallel;The outside of each copper wire is covered with insulating layer, the shielding layer is used to be wound and covered in inside as a whole, the filling layer is filled in the gap between wire core and shielding layer, the outermost layer is used to cover shielding layer and play the role of structure reinforcement, heat pipe is arranged in the inside middle position of wire core, and it is mutually parallel to be arranged so that cable does not be mutually entangled between multiple copper wires in the process of manufacturing, winding can make the cable of same one end distance, wire core length increases, lead to overall resistance increase, so winding needs to be avoided, the outermost layer is also insulated material composition, for preventing the damage of shielding layer by external force while guaranteeing the structural strength of entire cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high-temperature resistant cable shielding layer structure. Background Technology

[0002] Cables are collections of conductors used to transmit electrical energy, signals, or data; they can be single conductors or cables composed of multiple conductors. There are many types of cables, which can be classified according to their uses and characteristics, such as power cables, communication cables, optical fibers, and coaxial cables. Certain specialized industries, such as petrochemicals, steel, aerospace, shipbuilding, military, pharmaceuticals, food processing, plastics machinery, and boilers, which involve heat and high temperatures, require high-temperature resistant cables. These cables are usually made of common materials with abundant sources, making them easy to mass-produce and relatively inexpensive. However, commercially available cables generally do not meet high-temperature resistance requirements and cannot guarantee the safe operation of power and signals.

[0003] The aforementioned existing technical solutions have the following drawbacks: it is particularly important to achieve a better shielding effect while taking into account heat dissipation. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant cable shielding layer structure to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A high-temperature resistant cable shielding structure includes a wire core, an insulation layer, a filler layer, a shielding layer, and an outermost layer. The wire core consists of multiple copper wires, and the axes of each copper wire are parallel to each other. Each copper wire is covered with an insulation layer. The shielding layer is used to wrap the wire core entirely inside. The filler layer fills the gap between the wire core and the shielding layer. The outermost layer is used to cover the shielding layer and provide structural reinforcement. A heat-conducting pipe is provided in the middle of the wire core.

[0006] By adopting the above technical solution, the parallel arrangement of the wires prevents the multiple copper wires from tangling during the cable manufacturing process. Tangling would increase the core length of the cable at the same distance, resulting in an increase in overall resistance. Therefore, tangling must be avoided. The outermost layer is also composed of insulating material to prevent external forces from damaging the shielding layer while ensuring the structural strength of the entire cable and preventing the core of the multiple copper wires from scattering. The heat pipe is combined with the outside of the insulation layer to conduct heat and prevent the internal temperature of the cable from becoming too high.

[0007] In a further embodiment, a metal mesh is embedded inside the insulating layer.

[0008] By adopting the above technical solution, a sleeve is formed using a metal insert extrusion process. A circular ring is constructed, hollow inside, with multiple reinforcing ribs for support. Multiple through holes are evenly distributed axially on the inner wall of the ring. Molten plastic is then injected into the ring through multiple points on the outer wall of the ring, thereby forming an insulation layer on the surface of the copper wire. During processing, an insulation layer needs to be adhered to the surface of the copper wire first, then a metal mesh is wound around it, and finally, another insulation layer is adhered using the above method. This forms an effective insulating protective layer, with the metal mesh acting as the first layer of shielding. It should be noted that both ends of the inner wall of the ring have integrally formed annular protrusions. The inner diameter of the annular protrusion at the cable entry end transitions with the outer diameter of the cable wrapped with metal mesh. The inner diameter of the ring is larger than the outer diameter of the final insulation layer formed on the cable. The inner diameter of the annular protrusion at the cable exit end transitions with the outer diameter of the final insulation layer formed on the cable. This ensures that the complete insulation layer adheres to the outside of the copper wire.

[0009] In a further embodiment, a binding wire spirally wound around the outside of the wire core is provided between the wire core and the shielding layer.

[0010] By adopting the above technical solution, the binding wire can be made of nylon or high-temperature resistant plastic, and its function is to make multiple wire cores fit together more tightly.

[0011] In a further embodiment, the filler layer is used to completely fill the gap between the shielding layer and the insulating layer.

[0012] By adopting the above technical solution, common cables generally have three wire cores, which are arranged in a triangular pattern. The filler layer is used to completely fill the gap to ensure the overall pressure resistance of the cable.

[0013] In a further embodiment, the shielding layer is made of a multi-layered mesh structure composite.

[0014] The above technical solution is used to ensure the ductility of the shielding layer.

[0015] In a further embodiment, the filler layer is made of highly elastic rubber.

[0016] By adopting the above technical solution, damage to the insulation layer and shielding layer can be avoided.

[0017] In summary, this utility model has the following beneficial effects: 1. The parallel arrangement of the wires prevents them from tangling during the cable manufacturing process. Tangling increases the core length of the cable at the same distance, leading to an increase in overall resistance. Therefore, tangling must be avoided. The outermost layer is also made of insulating material to prevent external forces from damaging the shielding layer while ensuring the structural strength of the entire cable and preventing the multi-strand copper wires from scattering. The heat pipe is combined with the outer side of the insulation layer to conduct heat and prevent the internal temperature of the cable from becoming too high. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] In the diagram, 1 is the wire core; 2 is the insulation layer; 3 is the filler layer; 4 is the shielding layer; and 5 is the outermost layer. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0022] Example 1: like Figure 1As shown, a high-temperature resistant cable shielding layer structure includes a core 1, an insulation layer 2, a filling layer 3, a shielding layer 4, and an outermost layer 5. The core 1 consists of multiple copper wires, and the axes of each copper wire are parallel to each other. This parallel arrangement prevents the multiple copper wires from tangling during cable manufacturing. Tangling increases the core length for the same distance at one end, leading to an increase in overall resistance. Therefore, tangling must be avoided. The outermost layer is also composed of insulation material, used to prevent external forces from damaging the shielding layer while ensuring the structural strength of the entire cable and preventing the core composed of multiple copper wires from unraveling. The heat-conducting pipe is combined with the outer side of the insulation layer for heat conduction. Heat is absorbed to prevent excessive localized overheating inside the cable; each copper wire is covered with an insulation layer 2, a shielding layer 4 is used to wrap the entire core 1 inside, a filler layer 3 fills the gap between the core 1 and the shielding layer 4, and the outermost layer 5 is used to cover the shielding layer 4 to provide structural reinforcement. A heat-conducting pipe is set in the middle of the core 1; a metal mesh is embedded inside the insulation layer 2; a binding wire is spirally wrapped around the outside of the core 1 between the core 1 and the shielding layer 4; the filler layer 3 is used to completely fill the gap between the shielding layer and the insulation layer 2; the shielding layer 4 is made of a multi-layer mesh structure composite; and the filler layer 3 is made of highly elastic rubber.

[0023] Specific implementation process: A sleeve is formed using a metal insert extrusion process, with a hollow ring containing multiple reinforcing ribs for support. Multiple through holes are evenly distributed axially on the inner wall of the ring. Molten plastic is then injected into the ring through multiple points on the outer wall, forming the insulation layer on the surface of the copper wire. During processing, an insulation layer is first adhered to the surface of the copper wire, then a metal mesh is wound around it, and finally, another insulation layer is adhered using the same method. This forms an effective insulating protective layer, with the metal mesh acting as the first layer of shielding. It should be noted that both ends of the inner wall of the ring have integrally formed annular protrusions. The inner diameter of the annular protrusion at the cable entry end transitions with the outer diameter of the cable wrapped with the metal mesh. The inner diameter of the ring is larger than the outer diameter of the final insulation layer formed on the cable. The inner diameter of the annular protrusion at the cable exit end transitions with the outer diameter of the final insulation layer, ensuring a complete insulation layer adheres to the outside of the copper wire.

[0024] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-temperature resistant cable shielding layer (4) structure, characterized in that: It includes a wire core (1), an insulation layer (2), a filling layer (3), a shielding layer (4), and an outermost layer (5). The wire core (1) is composed of multiple copper wires, and the axes of each copper wire are parallel to each other. The outer side of each copper wire is covered with an insulation layer (2). The shielding layer (4) is used to wrap the wire core (1) inside. The filling layer (3) fills the gap between the wire core (1) and the shielding layer (4). The outermost layer (5) is used to cover the shielding layer (4) and play a role in structural reinforcement. A heat-conducting pipe is set in the middle of the inside of the wire core (1).

2. The high-temperature resistant cable shielding layer (4) structure according to claim 1, characterized in that: A metal mesh is embedded inside the insulating layer (2).

3. The high-temperature resistant cable shielding layer (4) structure according to claim 1, characterized in that: A binding wire spirally wound around the outside of the core (1) is provided between the core (1) and the shielding layer (4).

4. The high-temperature resistant cable shielding layer (4) structure according to claim 1, characterized in that: The filling layer (3) is used to completely fill the gap between the shielding layer and the insulating layer (2).

5. The high-temperature resistant cable shielding layer (4) structure according to claim 1, characterized in that: The shielding layer (4) is made of a multi-layer mesh structure.

6. The high-temperature resistant cable shielding layer (4) structure according to claim 1, characterized in that: The filler layer (3) is made of highly elastic rubber.

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