Anti-interference cable

Abstract

The utility model relates to the technical field of cables, and discloses an anti-interference cable, which comprises a wire core, a first metal shielding layer, a shielding assembly and a protective layer, an insulating layer is wrapped outside the wire core, the first metal shielding layer is wrapped outside the insulating layer, the wire core is arranged in the shielding assembly, and the shielding assembly comprises a metal shielding frame and a second metal shielding layer. The second metal shielding layer wraps the metal shielding frame, and the protective layer is arranged outside the second metal shielding layer. According to the utility model, through independently sleeving the first metal shielding layer outside the wire core, the radiation of the wire core can be reduced, through arranging the metal shielding frame and the second metal shielding layer, the wire core wrapped by the first metal shielding layer can be completely wrapped in the shielding assembly, and the radiation interference generated by the wire core is shielded by the metal shielding frame and the second metal shielding layer. The interference influence of the wire core on other wire cores can be reduced, the signal transmitted by the wire core is more accurate, the communication quality is ensured, the reliability is improved, and the signal transmission effect of the cable can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-interference cable. Background Art

[0002] With the rapid development of information technology, the exchange of information has become more frequent and faster. In order to meet the growing demand for mobile communications, 5G (fifth-generation mobile communication technology) is the new generation of mobile communication standard after 4G (fourth-generation mobile communication technology). It has faster response speed, transmission rate and higher transmission frequency.

[0003] The increase in transmission frequency means that the signal is more likely to generate radiation interference during cable transmission, which in turn affects the communication stability of other surrounding signal lines. In the existing technology, communication cables generally only have a shielding layer on the outer layer. When transmitting signals, the cores in the communication cable will also interfere with each other, which will affect the effect of signal transmission. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide an anti-interference cable, which solves the technical problem that the wire cores in the communication cable will interfere with each other when transmitting signals, thereby affecting the signal transmission effect.

[0005] The utility model solves the above technical problems through the following technical means: an anti-interference cable, comprising a wire core, a first metal shielding layer, a shielding assembly and a protective layer, the wire core is wrapped with an insulating layer, the first metal shielding layer is wrapped outside the insulating layer, the wire core is arranged in the shielding assembly, the protective layer is arranged outside the shielding assembly, the shielding assembly comprises a metal shielding frame and a second metal shielding layer, the second metal shielding layer is wrapped outside the metal shielding frame, and a plurality of circumferentially arranged gaps are left between the second metal shielding layer and the metal shielding frame, the wire core is arranged in the gap, and there is only one wire core in each gap, a filling layer is arranged in the gap to offset the first metal shielding layer, and the protective layer is arranged outside the second metal shielding layer.

[0006] Furthermore, a plurality of limiting members are fixedly mounted on the surface of the second metal shielding layer close to the core, and the limiting members are all against the side walls of the metal shielding frame, and are used to fix the metal shielding frame.

[0007] Furthermore, the second metal shielding layer is a copper strip that is integrally welded and then corrugated.

[0008] Furthermore, it also includes an inner lining layer, which is arranged between the protective layer and the second metal shielding layer, and the inner lining layer is wrapped around the second metal shielding layer.

[0009] Furthermore, it also includes a pressure-resistant component, which is arranged between the protective layer and the lining layer, and is used to improve the pressure resistance of the cable.

[0010] Furthermore, the pressure-resistant component includes a pressure-resistant sleeve and a metal shrapnel. The pressure-resistant sleeve is wrapped around the inner lining layer. The metal shrapnel is arranged between the protective layer and the pressure-resistant sleeve, and the metal shrapnel is arranged on the pressure-resistant sleeve. The protective layer and the metal shrapnel are against each other.

[0011] Furthermore, the cross-section of the metal shrapnel is arc-shaped, and both ends of the metal shrapnel are fixedly mounted on the pressure-resistant sleeve. A gap is left between the metal shrapnel and the pressure-resistant sleeve, and a first elastic filler is arranged in the gap. There are several metal shrapnel, and the several metal shrapnel are evenly distributed circumferentially on the pressure-resistant sleeve. A second elastic filler is arranged between two adjacent metal shrapnel and the protective layer.

[0012] Furthermore, the first elastic filler and the second elastic filler are both made of foamed polyethylene.

[0013] Beneficial effects of the utility model:

[0014] 1. By independently sheathing the first metal shielding layer outside the wire core, the radiation of the wire core can be reduced. By setting the metal shielding frame and the second metal shielding layer, the wire core wrapped with the first metal shielding layer can be completely wrapped in the shielding assembly. The radiation interference generated by the wire core is shielded by the metal shielding frame and the second metal shielding layer, which is beneficial for the wire core to reduce the interference effect on other wire cores, make the signal transmitted by the wire core more accurate, ensure the communication quality, improve the reliability, and thus improve the effect of cable signal transmission.

[0015] 2. By setting the limiter, the position of the metal shielding frame can be fixed, thereby fixing the position of the wire core and improving the stability of cable use.

[0016] 3. By setting up the pressure-resistant components, the pressure resistance of the cable can be improved, the possibility of the shielding components being crushed can be reduced, thereby reducing the possibility of the wire core being crushed and increasing the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0018] Figure 1 This is a structural diagram of an anti-interference cable of the utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] in:

[0021] 1. Wire core; 2. Insulation layer; 3. First metal shielding layer;

[0022] 4. Shielding assembly; 401. Metal shielding frame; 402. Second metal shielding layer; 403. Limiting member;

[0023] 5. Filling layer; 6. Lining layer;

[0024] 7. Compression-resistant component; 701. Compression-resistant sleeve; 702. Metal spring; 703. First elastic filler; 704. Second elastic filler;

[0025] 8. Protective layer. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and are only schematic diagrams, not actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures.

[0027] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the figures. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0029] like Figure 1-Figure 2As shown, the utility model is an anti-interference cable, including a wire core 1, a first metal shielding layer 3, a shielding assembly 4 and a protective layer 8. The wire core 1 is wrapped with an insulating layer 2, the first metal shielding layer 3 is wrapped outside the insulating layer 2, the wire core 1 is arranged in the shielding assembly 4, an inner lining layer 6 is arranged outside the shielding assembly 4, a pressure-resistant assembly 7 is arranged outside the inner lining layer 6, and the protective layer 8 is arranged outside the pressure-resistant assembly 7. The material of the protective layer 8 is EPDM rubber.

[0030] like Figure 1 and Figure 2 As shown, the shielding assembly 4 includes a metal shielding frame 401 and a second metal shielding layer 402. The second metal shielding layer 402 is a copper strip that is corrugated after integral welding. The cross-section of the metal shielding frame 401 is a herringbone shape. The second metal shielding layer 402 is wrapped around the outside of the metal shielding frame 401. Three groups of limit members 403 are glued to the surface of the second metal shielding layer 402 close to the wire core 1. The limit members 403 are all against the side walls of the metal shielding frame 401. The limit members 403 are used to fix the metal shielding frame 401. Three circumferential gaps are left between the second metal shielding layer 402 and the metal shielding frame 401. The wire core 1 is arranged in the gap, and there is only one wire core 1 in each gap. A filling layer 5 is arranged in the gap to be against the first metal shielding layer 3. The filling layer 5 is made of glass fiber, and the protective layer 8 is arranged outside the second metal shielding layer 402.

[0031] like Figure 1 and Figure 2 As shown, the inner lining layer 6 is arranged between the protective layer 8 and the second metal shielding layer 402, and the inner lining layer 6 is wrapped around the second metal shielding layer 402. The pressure-resistant component 7 includes a pressure-resistant sleeve 701 and a metal shrapnel 702. The pressure-resistant sleeve 701 is made of rubber and is wrapped around the inner lining layer 6. The cross-section of the metal shrapnel 702 is arc-shaped. Both ends of the metal shrapnel 702 are glued to the pressure-resistant sleeve 701. A gap is left between the metal shrapnel 702 and the pressure-resistant sleeve 701, and a first elastic filler 703 is arranged in the gap. There are three metal shrapnel 702, and the three metal shrapnel 702 are evenly distributed on the pressure-resistant sleeve 701 in a circumferential direction, and the three metal shrapnel 702 are connected end to end. A second elastic filler 704 is arranged between two adjacent metal shrapnel 702 and the protective layer 8. The protective layer 8 and the metal shrapnel 702 are offset. The first elastic filler 703 and the second elastic filler 704 are both composed of foamed polyethylene.

[0032] The operating principle of the present invention is as follows: the outside of the wire core 1 is independently wrapped with a first metal shielding layer 3 and an insulating layer 2. When the cable transmits signals, the first metal shielding layer 3 can reduce the radiation of the wire core 1, and then through the setting of the metal shielding frame 401 and the second metal shielding layer 402, the three wire cores 1 can be isolated from each other in their respective gaps. The radiation interference generated by the wire core 1 is shielded by the metal shielding frame 401 and the second metal shielding layer 402, which is beneficial for the wire core 1 to reduce the interference effect on other wire cores 1, making the signal transmitted by the wire core 1 more accurate, ensuring the communication quality, and improving the reliability, thereby improving the effect of cable signal transmission. The filling layer 5 is made of glass fiber. The glass fiber has good insulation properties, and the mechanical strength and tensile strength of the glass fiber are very good, which can effectively improve the mechanical strength and tensile strength of the cable. Through the setting of the limiter 403, the position of the metal shielding frame 401 can be fixed, so that the position of the wire core 1 can be fixed, thereby improving the stability of cable use.

[0033] The two ends of the metal shrapnel 702 are respectively arranged at the end positions of the herringbone metal shielding frame 401. When the cable is subjected to external pressure, the pressure will act on the metal shrapnel 702. The deformation of the metal shrapnel 702, the first elastic filler 703 and the second elastic filler 704 can reduce the pressure on the cable, and the herringbone metal shielding frame 401 can support the cable, which can reduce the possibility of the shielding component 4 being crushed, thereby reducing the possibility of the core 1 being crushed, and improving the service life of the cable. Through the setting of the inner lining layer 6, the pressure-resistant sleeve 701 can be separated from the second metal shielding layer 402, thereby avoiding the pressure-resistant sleeve 701 and the second metal shielding layer 402 from rubbing against each other, improving the service life of the pressure-resistant sleeve 701, and further improving the service life of the cable.

[0034] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalent substitutions shall be encompassed by the claims of the present invention. The techniques, shapes, and structural portions not described in detail in the present invention are well known.

Claims

1. An anti-interference cable, comprising a core and a first metal shielding layer, characterized in that: It also includes a shielding component and a protective layer, the wire core is wrapped with an insulating layer, the first metal shielding layer is wrapped outside the insulating layer, the wire core is arranged in the shielding component, and the protective layer is arranged outside the shielding component, the shielding component includes a metal shielding frame and a second metal shielding layer, the second metal shielding layer is wrapped outside the metal shielding frame, and a plurality of circumferentially arranged gaps are left between the second metal shielding layer and the metal shielding frame, the wire core is arranged in the gap, and there is only one wire core in each gap, a filling layer is arranged in the gap to offset the first metal shielding layer, and the protective layer is arranged outside the second metal shielding layer; it also includes an inner lining layer, the inner lining layer is arranged between the protective layer and the second metal shielding layer, and the inner lining layer is wrapped outside the second metal shielding layer; it also includes a pressure-resistant component, the pressure-resistant component is arranged in the protective layer Between the protective layer and the inner lining layer, the pressure-resistant component is used to improve the pressure resistance of the cable; the pressure-resistant component includes a pressure-resistant sleeve and a metal shrapnel, the pressure-resistant sleeve is wrapped outside the inner lining layer, the metal shrapnel is arranged between the protective layer and the pressure-resistant sleeve, and the metal shrapnel is arranged on the pressure-resistant sleeve, and the protective layer and the metal shrapnel are against each other; the cross-section of the metal shrapnel is arc-shaped, and both ends of the metal shrapnel are fixedly mounted on the pressure-resistant sleeve, and a gap is left between the metal shrapnel and the pressure-resistant sleeve, and a first elastic filler is arranged in the gap, and there are several metal shrapnel, and several metal shrapnel are circumferentially distributed on the pressure-resistant sleeve, and a second elastic filler is arranged between two adjacent metal shrapnel and the protective layer; the cross-section of the metal shielding frame is a herringbone, and the two ends of the metal shrapnel are respectively arranged at the end positions of the herringbone metal shielding frame.

2. The anti-interference cable according to claim 1, characterized in that: A plurality of limiting members are fixedly mounted on the surface of the second metal shielding layer close to the wire core. The limiting members are all against the side walls of the metal shielding frame and are used to fix the metal shielding frame.

3. The anti-interference cable according to claim 1, characterized in that: The second metal shielding layer is a copper strip that is integrally welded and then embossed.

4. The anti-interference cable according to claim 1, characterized in that: The first elastic filler and the second elastic filler are both made of foamed polyethylene.

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