A high-temperature twisted-pair cable with good shielding

Abstract

The utility model relates to the technical field of twisted-pair cables, and in particular to a twisted-pair high-temperature cable with good shielding, comprising a corrosion-resistant insulating sheath, the interior of the corrosion-resistant insulating sheath is wrapped with a shielding component; the shielding component comprises a tinned copper braided mesh wrapped inside the corrosion-resistant insulating sheath, the interior of the tinned copper braided mesh is wrapped with a fire-resistant fiber layer, the interior of the fire-resistant fiber layer is provided with metal conductive wires, tensile wires, inner insulating layers and supporting skeletons, the tensile wires are wound around the outer wall of the metal conductive wires, in the utility model, a twisted-pair high-temperature cable with good shielding is designed, the electromagnetic shielding effect of the twisted-pair high-temperature cable is improved by utilizing the electromagnetic shielding layer, the tinned copper braided mesh and the twisted-pair high-temperature shielding wires, the supporting skeleton is placed at the center of the interior of the corrosion-resistant insulating sheath to facilitate improving the supporting property of the metal conductive wire, and the tensile wire is wound around the outer wall of the metal conductive wire to facilitate improving the tensile resistance of the wiring harness.

Description

Technical Field

[0001] The utility model relates to the technical field of twisted-pair cables, in particular to a twisted-pair high-temperature cable with good shielding performance. Background Art

[0002] Twisted pair cable is a general wiring cable made of two mutually insulated wires twisted together according to certain specifications. It is a transmission medium for information communication networks. Twisted pair cables are divided into shielded twisted pair cables and unshielded twisted pair cables.

[0003] A highly flexible shielded twisted-pair cable is proposed in the patent with publication number CN213123823U, which includes a wire sleeve, a first twisted wire and a second twisted wire. The surface of the wire sleeve is fixedly connected with a plurality of wear-resistant strips, and a wiring structure is arranged inside the wire sleeve. Both sides of the inner wall of the wiring structure are fixedly connected with a limiting mechanism, a magnesium oxide layer, a kaolin layer, an aluminum oxide layer, a methyl silicone resin layer and a silicon dioxide layer. One side of the magnesium oxide layer is connected to the surface of the wire sleeve, and an aluminum oxide layer is arranged on the side of the magnesium oxide layer away from the wire sleeve. One side of the aluminum layer is connected to the magnesium oxide layer through the kaolin layer, and a silicon dioxide layer is arranged on the side of the aluminum oxide layer away from the kaolin layer. The silicon dioxide layer is connected to the aluminum oxide layer through the methyl silicone resin layer. The magnesium oxide layer, the kaolin layer, the aluminum oxide layer, the methyl silicone resin layer and the silicon dioxide layer form an insulating layer, which can prevent the first twisted wire and the second twisted wire inside the wire sheath from leaking electricity when in use, thereby realizing the top insulation function of the twisted pair cable when in use, thereby improving the safety of the twisted pair cable when in use. However, the following problems still exist in the patent:

[0004] The above twisted pair cable is not provided with a shielding component during use, so its shielding effect is poor.

[0005] In view of the above problems, it is necessary to design a twisted pair high temperature cable with good shielding properties to overcome the above problems. Summary of the invention

[0006] The main purpose of the utility model is to provide a twisted pair high temperature cable with good shielding performance, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A high-temperature twisted-pair cable with good shielding performance, comprising a corrosion-resistant insulating sheath, wherein a shielding component is wrapped inside the corrosion-resistant insulating sheath;

[0009] The shielding assembly includes a tinned copper braided mesh wrapped in a corrosion-resistant insulating sheath, the interior of the tinned copper braided mesh is wrapped with a fire-resistant fiber layer, the interior of the fire-resistant fiber layer is provided with metal conductive wires, tensile wires, an inner insulating layer and a supporting frame, the tensile wires are wound around the outer walls of the metal conductive wires, and the inner insulating layer is wrapped around the outer walls of the metal conductive wires and the tensile wires, wherein the metal conductive wires are arranged in multiple groups and are evenly distributed around the supporting frame, and the outer walls of the two ends of the metal conductive wires and the tensile wires are respectively covered with twisted high-temperature shielding wires.

[0010] As a preferred solution of the utility model, outer walls of both ends of the corrosion-resistant insulating sheath are respectively covered with electromagnetic shielding layers.

[0011] As a preferred solution of the utility model, the corrosion-resistant insulating sheath is made of silicone rubber material, wherein the thickness of the corrosion-resistant insulating sheath is 3-5 mm.

[0012] As a preferred solution of the utility model, the inner insulating layer is made of PVC material, wherein the thickness of the inner insulating layer is not less than 5 mm, and the number of the inner insulating layers is not less than 6.

[0013] As a preferred solution of the present invention, the electromagnetic shielding layer is made of woven metal wire mesh.

[0014] Beneficial Effects

[0015] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, a twisted pair high temperature cable with good shielding is designed, and the electromagnetic shielding effect of the twisted pair high temperature cable is improved by utilizing an electromagnetic shielding layer, a tinned copper braided mesh and a twisted pair high temperature shielding wire. The supporting frame is placed at the center of the interior of the corrosion-resistant insulating sheath to facilitate improving the supporting property of the metal conductive wire, and the tensile wire is wrapped around the outer wall of the metal conductive wire to facilitate improving the tensile resistance of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the corrosion-resistant insulating sheath of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the corrosion-resistant insulating sheath and the electromagnetic shielding layer of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the corrosion-resistant insulating sheath of the utility model.

[0019] In the figure: 1. Corrosion-resistant insulating sheath; 2. Shielding assembly; 201. Tinned copper braided mesh; 202. Metal conductive wire; 203. Tensile wire; 204. Twisted-pair high-temperature shielded wire; 205. Electromagnetic shielding layer; 206. Inner insulating layer; 207. Refractory fiber layer; 208. Support skeleton. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-3 As shown, a twisted pair high temperature cable with good shielding performance comprises a corrosion resistant insulating sheath 1, wherein a shielding component 2 is wrapped inside the corrosion resistant insulating sheath 1;

[0026] The shielding assembly 2 includes a tinned copper braided mesh 201 wrapped inside a corrosion-resistant insulating sheath 1, the interior of the tinned copper braided mesh 201 is wrapped with a fire-resistant fiber layer 207, the interior of the fire-resistant fiber layer 207 is provided with a metal conductive wire 202, a tensile wire 203, an inner insulating layer 206 and a supporting skeleton 208, the tensile wire 203 is wound around the outer wall of the metal conductive wire 202, the inner insulating layer 206 is wrapped around the outer walls of the metal conductive wire 202 and the tensile wire 203, wherein the metal conductive wire 202 is arranged in multiple groups and is evenly distributed around the supporting skeleton 208, and the outer walls of the two ends of the metal conductive wire 202 and the tensile wire 203 are respectively covered with twisted high-temperature shielding wires 204.

[0027] Please refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, the outer walls of the two ends of the corrosion-resistant insulating sheath 1 are respectively covered with electromagnetic shielding layers 205, the corrosion-resistant insulating sheath 1 is made of silicone rubber material, wherein the thickness of the corrosion-resistant insulating sheath 1 is 3-5 mm, the inner insulating layer 206 is made of PVC material, wherein the thickness of the inner insulating layer 206 is not less than 5 mm, and the number of the inner insulating layers 206 is not less than 6, and the electromagnetic shielding layer 205 is made of woven metal wire mesh;

[0028] Among them, the thickness of the electromagnetic shielding layer 205 is 4-6mm, and the number of layers of the electromagnetic shielding layer 205 is 3. The electromagnetic shielding layer 205 has an electromagnetic shielding effect, and the tensile wire 203 is wrapped around the outer wall of the metal conductive wire 202 in an "S" shape, which is convenient for increasing the tensile effect of the cable.

[0029] Working process of the utility model: When using the shielded twisted pair high-temperature cable designed by the scheme, the tensile wire 203 is wound in an "S" shape around the outer wall of the metal conductive wire 202, and the twisted pair high-temperature shielded wire 204 is covered on both ends thereof, so as to increase the tensile resistance of the cable while increasing the shielding effect of the cable, and the inner insulating layer 206 is wrapped around the outer walls of the metal conductive wire 202 and the tensile wire 203 to improve the insulation of the wire harness, and the supporting skeleton 208 is placed at the center inside the corrosion-resistant insulating sheath 1 to support the wire harness, and the outer walls of the two ends of the corrosion-resistant insulating sheath 1 are respectively covered with an electromagnetic shielding layer 205 to achieve the electromagnetic shielding effect, thereby improving the electromagnetic shielding property of the twisted pair high-temperature cable.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature twisted-pair cable with good shielding, comprising a corrosion-resistant insulating sheath (1), characterized in that: The corrosion-resistant insulating sheath (1) is internally wrapped with a shielding component (2); The shielding component (2) comprises a tinned copper braided mesh (201) wrapped inside a corrosion-resistant insulating sheath (1); the inside of the tinned copper braided mesh (201) is wrapped with a fire-resistant fiber layer (207); the inside of the fire-resistant fiber layer (207) is provided with a metal conductive wire (202), a tensile wire (203), an inner insulating layer (206) and a supporting skeleton (208); the tensile wire (203) is wound around the outer wall of the metal conductive wire (202); the inner insulating layer (206) is wrapped around the outer walls of the metal conductive wire (202) and the tensile wire (203); wherein the metal conductive wire (202) is provided in multiple groups and is evenly distributed around the supporting skeleton (208); and the outer walls of both ends of the metal conductive wire (202) and the tensile wire (203) are respectively covered with a twisted pair of high-temperature shielded wires (204).

2. A high-temperature twisted-pair cable with good shielding according to claim 1, characterized in that: The outer walls of the two ends of the corrosion-resistant insulating sheath (1) are respectively coated with electromagnetic shielding layers (205).

3. A high-temperature twisted-pair cable with good shielding according to claim 1, characterized in that: The corrosion-resistant insulating sheath (1) is made of silicone rubber material, wherein the thickness of the corrosion-resistant insulating sheath (1) is 3-5 mm.

4. A high-temperature twisted-pair cable with good shielding according to claim 1, characterized in that: The inner insulating layer (206) is made of PVC material, wherein the thickness of the inner insulating layer (206) is not less than 5 mm, and the number of the inner insulating layers (206) is not less than 6.

5. A high-temperature twisted-pair cable with good shielding according to claim 2, characterized in that: The electromagnetic shielding layer (205) is made of woven metal wire mesh.

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