Cable core and communication cable

Abstract

A cable core and a communication cable, wherein the cable core comprises a conductor and an insulating dielectric layer wrapped around the conductor; a plurality of holes parallel to the axis of the conductor are evenly formed inside the insulating dielectric layer around the conductor, and a supporting structure is formed between every two adjacent holes. In any cross section of the cable core, the cross sections of the holes are of the same shape and are all axisymmetric figures, and the symmetry axes of the cross sections of the holes intersect with the circle center of the cross section of the conductor. The present application has the following beneficial effects: the cable core has a stable structure and is not prone to breakage under stress, so that the compressive strength is improved; and the dielectric constant stability of the insulating dielectric is improved, so that the signal transmission efficiency is improved, and the processing precision of the cable core is improved.

Description

Wire core and communication cable Technical Field

[0001] The present application belongs to the technical field of communication cables, and specifically relates to a wire core and a communication cable. Background Art

[0002] Communication cables are a general term for various conductors used to transmit electrical or optical signals. With the increasing demand for transmission speeds between electronic devices and components, increased data transmission speeds are of great significance to the communications industry. Therefore, communication cables and optical fibers have become the primary transmission methods.

[0003] Traditional communication cables are mainly composed of a wire core, an insulation layer, a shielding layer, and a protective layer. The structural design of the wire core within the shielding layer has a decisive influence on the transmission speed. It includes a conductor and a dielectric layer covering the outside of the conductor. To achieve high speed, the comprehensive dielectric constant ε of the insulating dielectric layer must always remain uniform and stable. However, in certain application scenarios, especially when using communication cables with a small outer diameter (such as when used in aviation equipment), due to the limitation of installation space, the wire core will be stretched, bent, or even squeezed. When existing communication cables are stretched, bent, or even squeezed, not only are the wire cores easily broken, but the comprehensive dielectric constant ε of the insulating dielectric layer is also not stable enough.

[0004] Therefore, it is necessary to provide a wire core and a communication cable with strong flexibility and a stable dielectric constant of the insulating dielectric layer.

[0005] Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present application provides a wire core and a communication cable.

[0008] (2) Technical solution

[0009] To achieve the above objectives, this application adopts the following technical solutions:

[0010] In a first aspect, an embodiment of the present application provides a wire core, comprising a conductor and an insulating medium layer wrapped around the conductor;

[0011] A plurality of holes parallel to the axis of the conductor are evenly arranged around the conductor inside the insulating dielectric layer, and a support structure is formed between adjacent holes;

[0012] In any cross section of the core, the cross sections of the holes are of the same shape and are all axisymmetric figures, and the axis of symmetry of the cross section of each hole intersects with the center of the cross section of the conductor.

[0013] In a second aspect, an embodiment of the present application provides a communication cable comprising at least one wire core as described in the first aspect.

[0014] (3) Beneficial effects

[0015] The beneficial effects of this application are:

[0016] 1. The support structure of the core can maintain the structural stability of the insulating dielectric layer when the core is under stress, so that the dielectric constant of the insulating dielectric layer remains stable. The combination of the hole and the support structure not only increases the toughness of the insulating dielectric layer, making it less likely to break when stretched, bent or even squeezed, but also reduces the weight of the core, reduces the value of the dielectric constant, and improves the signal transmission rate of the communication cable.

[0017] 2. The symmetrical structure of the wire core ensures the accuracy of the mold, which is conducive to improving processing accuracy and is more suitable for high-speed and high-frequency communication cables with small structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is described with the aid of the following drawings:

[0019] FIG1 is a schematic diagram of the cross-sectional structure of the core wire in some feasible solutions of Example 1 of the present application;

[0020] FIG2 is a schematic diagram of the cross-sectional structure of the wires in other feasible solutions of Example 1 of the present application;

[0021] FIG3 is a schematic diagram of the cross-sectional structure of the core wire in some other feasible solutions of Example 1 of the present application;

[0022] FIG4 is a schematic diagram of the cross-sectional structure of the core wire in some other feasible solutions of Example 1;

[0023] FIG5 is a schematic structural diagram of a differential signal line group including only two line cores in some feasible solutions of Example 2 of the present application;

[0024] FIG6 is a schematic structural diagram of a differential signal line group provided with one ground line in some feasible solutions of Example 2 of the present application;

[0025] FIG7 is a schematic structural diagram of a differential signal line group with two ground lines in some feasible solutions of Example 2 of the present application;

[0026] FIG8 is a schematic structural diagram of a differential signal line group provided with positioning notches in some feasible solutions of Example 2 of the present application;

[0027] FIG9 is a schematic structural diagram of a differential signal line group provided with positioning notches in other feasible solutions of Example 2;

[0028] FIG10 is a schematic structural diagram of a differential signal line group provided with positioning notches in other feasible solutions of Example 2;

[0029] FIG11 is a schematic cross-sectional view of a communication cable with single-row parallel lines in some feasible solutions of Example 3 of the present application;

[0030] FIG12 is a schematic cross-sectional view of a communication cable with double-row parallel lines in some feasible solutions of Example 3 of the present application;

[0031] FIG13 is a schematic cross-sectional view of a communication cable with single-row parallel lines in some feasible solutions of Example 3 of the present application;

[0032] FIG14 is a schematic cross-sectional view of a communication cable with double-row parallel lines in another feasible solution of Example 3 of the present application;

[0033] FIG15 is a schematic cross-sectional view of some feasible solutions of the high-speed differential cable of Example 5 of the present application;

[0034] FIG16 is a schematic cross-sectional structural diagram of other feasible solutions of the high-speed differential cable of Example 5 of the present application.

[0035] [Explanation of the accompanying drawings] 11, conductor; 12, insulating dielectric layer; 121, hole; 122, supporting structure; 13, wire core outer sheath; O, center of a circle; L, axis of symmetry; S1, center point of an inverted triangle; S2, center point of an inverted triangle; 20, differential signal line group; 21, ground wire; 22, wire group shielding layer; 221, first connecting rib; 23, positioning notch; 24, wire group middle sheath; 25, wire group outer sheath; 26, first shielding layer; 27, second shielding layer; 28, cable outer sheath; 281, second connecting rib; 29, braided layer; 30, anti-breakage notch. DETAILED DESCRIPTION

[0036] To better explain this application and facilitate understanding, the following detailed description of this application is provided in conjunction with the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described below are merely for explaining the relevant invention and are not intended to limit the invention. It should also be noted that the embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict; for ease of description, only the portions relevant to the invention are shown in the accompanying drawings.

[0037] Example 1

[0038] 1 to 4 , this embodiment provides a core suitable for a communication cable, comprising a conductor 11 and an insulating dielectric layer 12 wrapped around the conductor 11. The insulating dielectric layer 12 has a plurality of holes 121 uniformly disposed around the conductor 11 and parallel to the axis of the conductor 11. Support structures 122 are formed between adjacent holes 121. These support structures 122 maintain the structural stability of the insulating dielectric layer 12 when the cable core is subjected to stress, thereby maintaining a stable dielectric constant of the insulating dielectric layer 12.

[0039] In any cross section of the core, the cross sections of the holes 121 have the same shape and are all axisymmetric figures, and the axis of symmetry L of the cross section of each hole 121 intersects with the center O of the cross section of the conductor 11. Therefore, the axis of symmetry L of each hole 121 is also the axis of symmetry of the core, so that the holes 121 are evenly distributed around the entire conductor 11, ensuring that the dielectric constant is consistent in all directions.

[0040] The combination of hole 121 and support structure 122 increases the toughness of insulating dielectric layer 12, making it less susceptible to breakage when stretched, bent, or even squeezed. This also reduces the weight of the core and lowers its dielectric constant. The core's symmetrical structure ensures mold accuracy, facilitating improved processing precision and making it particularly suitable for compact, high-speed, and high-frequency communication cables.

[0041] The cross-section of the hole 121 can be an axially symmetrical shape such as a circle, an ellipse, or an equilateral polygon, and its symmetry axis L can intersect with the center O of the conductor 11, so that the holes 121 are distributed symmetrically around the entire core to ensure that the dielectric constant is consistent in all directions. At the same time, by adopting this structure, the dielectric constant can be reduced from the original 2.3 to 1.1. After the dielectric constant is reduced, the transmission rate is faster, and the rate can be increased from 32G to 64G.

[0042] Conductor 11 may be made of galvanized copper or tinned copper. Insulating dielectric layer 12 may be foamed and made of polypropylene (PP), perfluoroethylene propylene (FEP), polyethylene (PE), soluble polytetrafluoroethylene (PFA), or polytetrafluoroethylene (PTFE). The outer sheath may be made of polyvinyl chloride (PVC), thermoplastic rubber (TPE), polyurethane (PU), ethylene-tetrafluoroethylene (ETFE), soluble polytetrafluoroethylene (PFA), polypropylene (PP), polyethylene (PE), cross-linked polyethylene (XLEP), or chlorinated polyethylene (CPE).

[0043] In some feasible solutions, referring to FIG. 1 , the cross-section of the hole 121 is in the shape of an isosceles triangle, each isosceles triangle is an inverted triangle, and the cross-section of the support structure 122 is in the shape of a column.

[0044] In this embodiment, the reverse triangle refers to an isosceles triangle with its vertex pointing to the axis of the conductor 11 , and the forward triangle refers to an isosceles triangle with its vertex pointing in the opposite direction to the vertex of the reverse triangle.

[0045] Continuing with FIG1 , the conductor 11 has a circular cross-section. A perpendicular line from the vertex of each inverted triangle to the bottom edge (i.e., the axis of symmetry L) intersects the center O of the circular cross-section of the conductor 11. The center points S1 are evenly distributed on the circumference of the concentric circles of the circular cross-section of the conductor 11, i.e., the distance from the center points S1 of each inverted triangle to the center O is equal.

[0046] The cross-section of the support structure 122 is cylindrical, and the width of one end thereof away from the conductor 11 is smaller than that of the other end.

[0047] The hole 121 can be an equilateral triangle, or an isosceles triangle with only two equal sides, with the vertex angle being greater than the base angle. For example, the vertex angle is set to 70 degrees and the base angle is 55 degrees. The larger the vertex angle and the base angle, the better the support structure forms a columnar structure with a small outer end and a large inner end, which prevents the cross-section of the hole 11 from being too narrow and helps further improve the processing accuracy of the wire core.

[0048] The cross-section of hole 121 is a structurally stable isosceles triangle, which enhances the structural stability of the wire core. Therefore, when the wire core is subjected to external forces such as squeezing and bending, it has higher compressive strength and is more likely to rebound after the external force disappears. The hole is arranged with the vertex of the inverted triangle pointing to the center of the conductor, so that the force at the vertex is more concentrated when the wire core is bent, further improving the adhesion of the insulating dielectric layer to the conductor, and the wire core is better protected when subjected to external forces.

[0049] In some feasible solutions, referring to FIG. 2 , each isosceles triangle is a regular triangle, the distances from the center point S2 of each regular triangle to the center O are equal, and the cross-sectional shape of the support structure 122 is cylindrical.

[0050] The perpendicular line from the vertex of each positive triangle to the base (i.e., the axis of symmetry L) intersects with the center O of the circular cross-section of the conductor 11; the center point S2 is evenly distributed on the circumference of the concentric circle of the circular cross-section of the conductor 11, that is, the distance from the center point S2 of each positive triangle to the center O is equal.

[0051] When the cross-section of each hole 11 is a positive triangle or an inverted triangle, the number of holes 121 arranged around the conductor 11 can be an odd number, such as 9, 11, or 13; or an even number, such as 8, 10, or 12. When the number of holes 121 is an even number, the holes 121 can be evenly and symmetrically distributed around the conductor 11.

[0052] In some feasible solutions, referring to FIG. 3 , the isosceles triangle includes a forward triangle and a reverse triangle, and the forward triangle and the reverse triangle are arranged at intervals.

[0053] The distance from the center point S1 of each reverse triangle to the center O of the circle is equal, and the distance from the center point S2 of each forward triangle to the center O of the circle is also equal, and the distance from the center point S1 of the reverse triangle to the center O of the circle is greater than the distance from the center point S2 of the forward triangle to the center of the circle, so that the position of the vertex of the reverse triangle is flush or basically flush with the position of the side of the forward triangle, avoiding interference between the forward triangle and the adjacent reverse triangle, and avoiding the support structure 122 being too thin near the conductor 11, causing the wire core to break when subjected to force.

[0054] The number of forward-facing triangles and backward-facing triangles is equal, and can be an even number, for example, 6 forward-facing triangles and 6 backward-facing triangles, for a total of 12 holes. The two support structures 122 on either side of each forward-facing triangle form a group, evenly and symmetrically distributed around the conductor 11, and the sides L1 and L2 of the two support structures 122 are parallel to each other. This allows the entire core to have a symmetrical circular structure, ensuring a consistent dielectric constant in all directions, while also improving the core's flexibility.

[0055] In some feasible solutions, referring to FIG. 4 , the wire core further includes a wire core outer layer 13 wrapped on the insulating medium layer 12 .

[0056] In some feasible solutions, the core is used in a communication cable with a small structure, the diameter of the conductor 11 is 0.16 to 0.2 mm; the diameter of the insulating medium layer 12 is 0.32-0.4 mm; and the side length of the isosceles triangle of the cross section of the hole is 0.02 mm.

[0057] In practical applications, the wire diameter and impedance of the wire core 10 can be selected according to actual conditions.

[0058] Example 2

[0059] Based on the aforementioned embodiment 1, embodiment 2 provides a differential line group.

[0060] In some feasible solutions, referring to FIG. 5 to FIG. 11 , the differential signal line set 20 includes two line cores 10 disposed side by side, and the adjacent support structures 122 of the two line cores 10 are aligned with each other.

[0061] The structure of the wire core 10 can be found in the first embodiment and will not be described in detail here.

[0062] In practical applications, the differential signal line group may include only two wire cores 10, as shown in Figure 5. The two wire cores 10 are wrapped together by the wire group inner layer 24, and the wire group shielding layer 22 and the wire group outer layer 25 are wrapped on the wire group inner layer 24 in turn; or

[0063] The differential signal line group may further include a ground line 21, as shown in FIG6 . The ground line 21 is provided at adjacent positions of the two line cores 10 , the line group shielding layer 22 wraps the two line cores 10 and the ground line 21 together, and the line group outer layer 25 wraps around the line group shielding layer 22 ; or

[0064] The differential signal line group may further include two ground wires 21, as shown in Figure 7. The two wire cores 10 are wrapped together by the inner layer 24 of the line group. The two ground wires 21 are located at both ends of the outer side of the inner layer 24 of the line group. The line group shielding layer 22 wraps the ground wires 21 and the wire cores 10 wrapped by the inner layer 24 of the line group. The line group outer layer 25 wraps around the line group shielding layer 22.

[0065] The inner sheath 24 of the cable assembly can be processed by extrusion or bagging. The cable shield can be made of materials such as aluminum foil, copper foil, and graphene. Its width and thickness can be customized and can be processed by drag wrapping or wrapping. The outer sheath of the cable assembly can be processed by hot-melt Mylar or plastic extrusion.

[0066] The wire cores 10 and the ground wire 21 constituting the differential signal wire group may also be directly wrapped by the cable outer layer 28 .

[0067] In some feasible solutions, please refer to Figures 8 to 11 , a positioning notch 23 may be further provided on the wire core 10 , and the ground wire 21 cooperates with the positioning notch 23 .

[0068] In practical applications, the number of the ground wire 21 can be one, as shown in FIG8 . In this case, a positioning notch 23 is provided adjacent to two side-by-side wire cores 10 ; or

[0069] The number of ground wires 21 can also be 2. As shown in Figure 9, a positioning notch 23 is provided on both sides of the two side-by-side wire cores 10. The two ground wires 21 are respectively located on both sides of the two side-by-side wire cores 10 and cooperate with the corresponding positioning notches 23.

[0070] The outer core sheath 13 of the core 10 is optional. If the core 10 is provided with a core sheath 13, the positioning notch 23 can be provided in the outer core sheath 13. If the core 10 does not have a core sheath 13, the positioning notch 23 can be provided in the insulating dielectric layer 12. Alternatively, the outer core sheath 13 can be used to wrap two cores 10 together. In this case, the outer core sheath 13 functions similarly to the sheath 24 in the wire group, namely, wrapping the two cores 10 together. In practical applications, an outer core sheath 13 can also be provided on each core 10.

[0071] In some feasible solutions, please refer to 10, the line group of the differential signal line group 20 is wrapped with a layer 24 that wraps the two wire cores 10 arranged side by side, and a positioning notch 23 is provided on the line group layer 24, the ground wire 21 cooperates with the positioning notch 23, and the line group shielding layer 22 wraps the wire core 10 and the ground wire 21 together.

[0072] In practical applications, the number of ground wires 21 can be two, and both ends of the layer 24 in the wire group are provided with positioning notches 23; the ground wires 21 are respectively located on both sides of the two side-by-side wire cores 10 and cooperate with the corresponding positioning notches 23; or

[0073] The number of the ground wire 21 may also be one. In this case, the positioning notch 23 is provided at a position corresponding to the adjacent position of the two wire cores 10 on the outer side of the cladding 24 in the wire group.

[0074] In practical applications, the positioning notch 23 is not necessary, and the ground wire 21 can be positioned by directly utilizing the elasticity of the outer sheath 13 of the wire core or the sheath 24 in the wire group and the extrusion deformation thereof.

[0075] In this embodiment, the ground wire is positioned and fixed by using the positioning notch and the wire group shielding layer, which can effectively prevent the position of the wire core and the ground wire from shifting when multiple groups of differential signal wires are twisted and when the cable is pulled and stretched, thereby maintaining the stability of the comprehensive dielectric constant ε.

[0076] Example 3

[0077] Based on the above-mentioned embodiment 1, embodiment 3 provides a communication cable.

[0078] Please refer to Figures 11 to 14. In some feasible solutions, the communication cable includes at least one row of parallel lines, and the parallel line includes at least two line cores 10 arranged side by side, and adjacent supporting structures 122 of two adjacent line cores 10 are aligned with each other.

[0079] The structure of the wire core 10 can be found in the first embodiment, and will not be described in detail in this embodiment.

[0080] In this embodiment, adjacent support structures of two adjacent cores are aligned with each other to achieve mutual support. When the cable is subjected to stress, the structure of the core insulating medium layer can be kept stable, thereby maintaining the dielectric constant of the insulating medium layer stable.

[0081] In some feasible solutions, please continue to refer to 11 , the parallel wires are wrapped with a cable outer layer 28 , and the cable outer layer 28 is provided with anti-breakage notches 30 adjacent to every two adjacent wire cores 10 .

[0082] The cable outer layer 28 is provided with anti-breaking notches 30 adjacent to the two cores 10. When the communication cable is subjected to a lateral bending force, the cable can bend at the anti-breaking notches 30, thereby preventing the cable from being broken and also preventing the cores 10 from being subjected to stress, thereby ensuring the structural stability of the core insulation medium layer.

[0083] In some feasible solutions, referring to FIG. 12 , the communication cable may include at least two rows of parallel wires, the cable sheaths 28 of which are connected, and the wire cores 10 of two adjacent rows of parallel wires are aligned in pairs, and the anti-breakage notches 30 are also aligned in pairs.

[0084] Aligning the wire cores 10 of two adjacent rows of parallel wires so that the supporting structures 122 of each wire core 10 correspond to each other up and down and left and right can enable the wire cores 10 to support each other when subjected to force, thereby increasing the structural stability of the wire core insulating medium layer 12 and minimizing the change in the dielectric constant of the wire core 10 after being squeezed. At the same time, the anti-breakage notches 30 between the two rows of parallel wires are aligned to form a complete hole, making the cable elastic, resistant to squeezing and easy to rebound.

[0085] Example 4

[0086] Based on the above embodiments, embodiment 4 provides another communication cable.

[0087] Different from the third embodiment, the wire cores 10 arranged side by side in the parallel line of the communication cable are combined in pairs to form a differential signal line group, and the adjacent supporting structures 122 of the two wire cores 10 are aligned with each other, as shown in Figures 13 and 14.

[0088] In this embodiment, the structure of the differential signal line set 20 can be found in FIG. 5 to FIG. 10 of the second embodiment, and will not be further described in this embodiment.

[0089] In some feasible solutions, please continue to refer to 13, the parallel lines are wrapped by the cable outer layer 28, and the cable outer layer 28 is provided with anti-breakage notches 30 adjacent to each two adjacent differential signal line groups. When the high-speed and high-frequency cable is subjected to a lateral bending force, the cable can bend at the notch, thereby avoiding the cable from being broken and avoiding the stress on the wire core.

[0090] In some feasible solutions, please refer to Figure 14, the communication cable includes at least two rows of parallel lines; their differential signal line groups 20 are aligned in pairs, the anti-breakage notches 30 are also aligned in pairs, and a first connecting rib 221 is provided at the edge of the anti-breakage notch 30, and the two rows of parallel lines are connected by the first connecting rib 221.

[0091] The first connecting rib 221 makes the cable elastic, resistant to extrusion and easy to rebound, and can increase the buffering of the cable outer layer 28 after the cable is subjected to force, further maintaining the structural stability of the core insulation medium layer.

[0092] Example 5

[0093] Based on the above embodiments, embodiment 5 provides a high-speed differential cable, as shown in FIG. 15 and FIG. 16 .

[0094] In some feasible solutions, referring to FIG15 , the communication cable includes a single cable, which includes a plurality of differential signal line groups 20 as described in the second embodiment, a first shielding layer 26 , a second shielding layer 27 , and a cable outer layer 28 .

[0095] Two differential signal line groups 20 arranged in parallel are wrapped in the first shielding layer 26; the second shielding layer 27 is wrapped around the outside of the first shielding layer 26, and multiple differential signal line groups 20 are arranged around the first shielding layer 26 and between the first shielding layer 26 and the second shielding layer 27; the cable outer layer 28 is wrapped around the outside of the second shielding layer 27.

[0096] It should be noted that after the cables are twisted, the blank parts in the figure will be squeezed, leaving only tiny gaps or completely squeezed without leaving any gaps.

[0097] The wire group shielding layer 22, the first shielding layer 26 and the second shielding layer 27 can all be made of materials such as aluminum foil / copper foil / graphene, and their width and thickness can be customized as needed. They can be processed by dragging or wrapping.

[0098] Two shielding layers are set in a single cable, and two differential signal line groups arranged in parallel are set in the first shielding layer 26. The cores 10 of the two differential signal line groups are aligned so that the support structures 122 of each core 10 correspond to each other in the upper and lower directions and the left and right directions. This allows the cores 10 to support each other when subjected to force, increases the structural stability of the core insulating medium layer 12, and thus reduces the change in the dielectric constant of the core 10 after being squeezed.

[0099] In some feasible solutions, a braided layer 29 is further provided between the cable outer layer 28 and the second shielding layer 27 .

[0100] In practical applications, the braided layer can be made of copper braid, and the size and quantity of the copper wires can be customized as needed.

[0101] In some feasible solutions, as shown in FIG16 , the communication cable may include two individual cables, at least two of which are arranged side by side, with the cable jackets 28 of the individual cables connected, and a second connecting rib 281 formed between the two individual cables. The second connecting rib 281 provides elasticity to the high-speed differential signal line 28 , resisting compression and easily rebounding. Furthermore, the second connecting rib 281 can provide additional cushioning to the cable jacket when the communication cable is subjected to stress, further maintaining the structural stability of the core insulating dielectric layer 12 .

[0102] Practicality

[0103] Due to the wire core and communication cable in the present application, the wire core structure is stable and not easily broken under stress, and the compressive strength is improved; the dielectric constant stability of the insulating medium is improved, the signal transmission efficiency is improved, and it is beneficial to improve the processing accuracy of the wire core. The adjacent support structures of the two adjacent wire cores in the wire group and cable using the wire core are aligned with each other to achieve mutual support, maintain the structural stability of the wire core insulating medium layer, and maintain the dielectric constant of the insulating medium layer stable. Therefore, the authentication and key negotiation method of the wireless sensor network of the present application is practical.

[0104] It should be noted that in the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The present application may be implemented by means of hardware comprising several distinct components and by means of a suitably programmed computer. The use of the words first, second, third, etc. is merely for convenience and does not imply any order. These words should be understood as part of the component name.

[0105] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application shall also include these modifications and variations.

Claims

1. A wire core, characterized in that: The wire core comprises a conductor (11) and an insulating medium layer (12) wrapped around the conductor (11); A plurality of holes (121) parallel to the axis of the conductor (11) are evenly arranged inside the insulating medium layer (12) around the conductor (11), and a support structure (122) is formed between adjacent holes (121); In any cross section of the core, the cross sections of the holes (121) have the same shape and are all axisymmetric figures, and the axis of symmetry of the cross section of each hole (121) intersects with the center of the cross section of the conductor (11).

2. The wire core according to claim 1, characterized in that: The cross-section of the hole (121) is in the shape of an isosceles triangle; Every isosceles triangle is an inverted triangle or every isosceles triangle is a forward triangle; or The isosceles triangle includes a forward triangle and a reverse triangle, and the forward triangle and the reverse triangle are arranged at intervals; The reverse triangle refers to an isosceles triangle whose vertex angle points to the conductor (11), and the forward triangle refers to an isosceles triangle whose vertex angle points in the opposite direction to the vertex angle of the reverse triangle.

3. The wire core according to claim 2, characterized in that: The isosceles triangles are all inverted triangles, the distances from the center points of the inverted triangles to the center of the circle are equal, and the width of one end of the columnar support structure (122) away from the conductor (11) is smaller than the width of the other end; or The isosceles triangles are all regular triangles, and the distances from the center points of the regular triangles to the center of the circle are equal; or The isosceles triangle includes an inverted triangle and a forward triangle, the number of the forward triangles is equal to that of the inverted triangles, the distance from the center point of each inverted triangle to the center of the circle is equal, the distance from the center point of each forward triangle to the center of the circle is also equal, and the distance from the center point of the inverted triangle to the center of the circle is greater than the distance from the center point of the forward triangle to the center of the circle.

4. The wire core according to claim 3, characterized in that: The isosceles triangle is an equilateral triangle; or The isosceles triangle has only two equal sides, and the angle of its vertex is greater than the angle of its base angle.

5. The wire core according to claim 4, characterized in that: The wire core further comprises a wire core outer coating layer (13) wrapped on the insulating medium layer (12).

6. A communication cable, characterized in that: The communication cable comprises at least one core (10) as claimed in claim 1.

7. The communication cable according to claim 6, characterized in that: A plurality of wire cores (10) are arranged in at least one parallel row, and adjacent support structures (122) of adjacent wire cores (10) are aligned with each other.

8. The communication cable according to claim 7, characterized in that: The parallel wires are wrapped by a cable outer sheath (28), and the cable outer sheath (28) is provided with anti-breakage notches (30) at adjacent locations between every two adjacent wire cores (10).

9. The communication cable according to claim 8, characterized in that: The number of parallel lines is at least two rows; The outer sheaths (28) of two adjacent rows of parallel cables are connected, and the wire cores (10) are aligned in pairs, and the anti-breakage notches (30) are also aligned in pairs.

10. The communication cable according to claim 6, characterized in that: The communication cable comprises at least one differential signal line group (20); The differential signal line group (20) includes two line cores (10), and adjacent support structures (122) of the two line cores (10) are aligned with each other.

11. The communication cable according to claim 10, characterized in that: The differential signal line group (20) comprises only two line cores (10), the two line cores (10) are wrapped together by a line group inner layer (24), and a line group shielding layer (25) and a line group outer layer (26) are wrapped in sequence on the line group inner layer (24); or The differential signal line group comprises a ground line (21), the ground line (21) is arranged adjacent to two line cores (10), a line group shielding layer (22) wraps the two line cores (10) and the ground line (21) together, and a line group outer layer (25) wraps the line group shielding layer (22); or The differential signal line group comprises two ground wires (21), the two line cores (10) are wrapped together by a layer (24) in the line group, the two ground wires (21) are located at two ends of the outer side of the layer (24) in the line group, the line group shielding layer (22) wraps the ground wires (21) and the line cores (10) wrapped by the layer (24) in the line group together, and the line group outer layer (25) wraps the line group shielding layer (22).

12. The communication cable according to claim 10, characterized in that: The differential signal line group (20) further comprises at least one ground line (21) and a line group shielding layer (22); a positioning notch (23) is provided on the line core (10); the ground line (21) cooperates with the positioning notch (23); and the line group shielding layer (22) wraps the line core (10) and the ground line (21) together; or The differential signal line group (20) further comprises at least one ground line (21), a line group shielding layer (22) and a line group inner quilt layer (24), wherein the line group inner quilt layer (24) wraps the two line cores (10) together, a positioning notch (23) is provided on the line group inner quilt layer (24), the ground line (21) cooperates with the positioning notch (23), and the line group shielding layer (22) wraps the line core (10) and the ground line (21) together.

13. The communication cable according to claim 10, characterized in that: The communication cable also includes a cable sheath (28), a plurality of the differential signal line groups (20) are arranged into at least one row of parallel lines, the parallel lines are wrapped by the cable sheath (28), and the cable sheath (28) is provided with anti-breakage notches (30) at adjacent locations between every two adjacent differential signal line groups.

14. The communication cable according to claim 13, characterized in that: The number of parallel lines is at least two rows; The differential signal line groups of two adjacent parallel rows are aligned in pairs, the anti-breakage notches (30) are also aligned in pairs, and first connecting ribs (221) are provided at both side edges of the anti-breakage notches (30), and the two adjacent parallel rows are connected via the first connecting ribs (221).

15. The communication cable according to claim 10, characterized in that: The communication cable comprises at least one single cable, wherein the single cable comprises a plurality of differential signal line groups (20), a first shielding layer (26), a second shielding layer (27) and a cable outer layer (28); The first shielding layer (26) contains two differential signal line groups (20) arranged in parallel, and the line cores (10) of the two differential signal line groups (20) are aligned with each other; The second shielding layer (27) is wrapped around the outside of the first shielding layer (26); the plurality of differential signal line groups (20) are arranged around the first shielding layer (26) and between the first shielding layer (26) and the second shielding layer (27); The cable outer layer (28) is wrapped around the outside of the second shielding layer (27).

16. The communication cable according to claim 15, characterized in that A braided layer (29) is further provided between the cable outer layer (28) and the second shielding layer (27).

17. The communication cable according to claim 15, characterized in that: The communication cable comprises two single cables, the two single cables are arranged side by side, the cable outer sheaths (28) of the two single cables are connected, and a second connecting rib (281) is formed between the two single cables.

18. The communication cable according to claim 6, characterized in that: The cross-section of the hole (121) is in the shape of an isosceles triangle; Every isosceles triangle is an inverted triangle or every isosceles triangle is a forward triangle; or The isosceles triangle includes a forward triangle and a reverse triangle, and the forward triangle and the reverse triangle are arranged at intervals; The reverse triangle refers to an isosceles triangle whose vertex angle points to the conductor (11), and the forward triangle refers to an isosceles triangle whose vertex angle points in the opposite direction to the vertex angle of the reverse triangle.

19. The communication cable according to claim 18, characterized in that The isosceles triangles are all inverted triangles, the distances from the center points of the inverted triangles to the center of the circle are equal, and the width of one end of the columnar support structure (122) away from the conductor (11) is smaller than the width of the other end; or The isosceles triangles are all regular triangles, and the distances from the center points of the regular triangles to the center of the circle are equal; or The isosceles triangle includes an inverted triangle and a forward triangle, the number of the forward triangle is equal to the number of the inverted triangle, and the distance from the center point of each inverted triangle to the center of the circle is equal. The distances from the center points of the forward triangles to the center of the circle are also equal, and the distance from the center point of the reverse triangle to the center of the circle is greater than the distance from the center point of the forward triangle to the center of the circle.

20. The communication cable according to claim 19, characterized in that The isosceles triangle is an equilateral triangle; or The isosceles triangle has only two equal sides, and the angle of its vertex is greater than the angle of its base angle.

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