Composite high speed parallel cable

Abstract

The application provides a composite high-speed parallel cable, which comprises an inner sheath, a plurality of parallel wire pairs, a supporting assembly and a buffer assembly. The inner sheath is internally provided with a containing cavity. The plurality of parallel wire pairs are arranged in the containing cavity in a ring shape. The supporting assembly is arranged in the containing cavity and is provided with a plurality of first containing spaces for containing the parallel wire pairs. In the radial direction of the inner sheath, one end of the parallel wire pairs abuts against the inner sheath, and the other end of the parallel wire pairs elastically abuts against the supporting assembly. In the circumferential direction of the inner sheath, the parallel wire pairs are limited by the supporting assembly. The buffer assembly is arranged on the outer periphery of the inner sheath and is provided with a buffer cavity for containing the parallel wire pairs. In the radial direction of the inner sheath, the opposite sides of the parallel wire pairs elastically abut against the cavity walls on the two sides of the buffer cavity. In the circumferential direction of the inner sheath, the parallel wire pairs are limited by the buffer assembly.

Description

Technical Field

[0001] This application relates to the field of cable technology, and in particular to a composite high-speed parallel cable. Background Technology

[0002] High-speed parallel cables typically consist of multiple high-speed parallel pairs directly bonded within a single sheath. These pairs are usually separated by filler material to maintain their roundness and stability. However, this type of high-speed parallel cable has relatively weak compressive strength. When subjected to pressure, the high-speed parallel pairs within the cable are prone to misalignment or even deformation, affecting its normal operation. Summary of the Invention

[0003] This application provides a composite high-speed parallel cable to solve the problem of weak compressive strength of high-speed parallel cables in the known art.

[0004] This application provides a composite high-speed parallel cable, including an inner sheath, multiple parallel wire pairs, a support assembly, and a buffer assembly. The inner sheath has a receiving cavity. Multiple parallel wire pairs are arranged circumferentially within the receiving cavity. The support assembly is located within the receiving cavity and has multiple first receiving spaces for accommodating the parallel wire pairs. Along the radial direction of the inner sheath, one end of each parallel wire pair abuts against the inner sheath, and the other end elastically abuts against the support assembly. Along the circumferential direction of the inner sheath, the parallel wire pairs are limited by the support assembly. The buffer assembly is located on the outer periphery of the inner sheath and has a buffer cavity for accommodating the parallel wire pairs. Along the radial direction of the inner sheath, opposite sides of each parallel wire pair elastically abut against the cavity walls on both sides of the buffer cavity. Along the circumferential direction of the inner sheath, the parallel wire pairs are limited by the buffer assembly.

[0005] In one possible implementation, the support assembly includes a central member, a plurality of swing members, a plurality of first elastic members, and a plurality of second elastic members, wherein the plurality of swing members are arranged around the outer periphery of the central member, and one end of each swing member near the central member is swingably connected to the central member.

[0006] Wherein, along the swing direction of the swinging member, a first receiving space is formed between the first side of any one of the swinging members and the adjacent swinging member, and the parallel line pair is clamped between the two swinging members forming the first receiving space. The first elastic member is configured to provide an elastic force to the swinging member, and based on the elastic force, the swinging member can rotate toward the side of the parallel line pair it clamps.

[0007] In one possible implementation, along the radial direction of the inner sheath, one end of the parallel line pair abuts against the inner sheath, and the other end of the parallel line pair is spaced apart from the center member to form a movable space, the movable space being configured to allow the parallel line pair to move toward one side of the center member, and the second elastic member being located within the movable space and sandwiched between the parallel line pair and the center member.

[0008] In one possible implementation, the oscillating member includes a first oscillating portion and a second oscillating portion, one end of the first oscillating portion being oscillatingly connected to the center member, and the first oscillating portion being spaced apart from the adjacent pair of parallel lines; the second oscillating portion is connected to the other end of the first oscillating portion away from the center member, and one side of the second oscillating portion is attached to the pair of parallel lines.

[0009] In one possible implementation, the buffer component includes:

[0010] A first buffer layer is disposed on the outer periphery of the inner sheath;

[0011] A second buffer layer is disposed at intervals around the outer periphery of the first buffer layer, and the buffer cavity is formed between the second buffer layer and the first buffer layer;

[0012] The first buffer layer has a first elastic protrusion on the side near the second buffer layer, and the second buffer layer has a second elastic protrusion on the side near the first buffer layer. Any two adjacent first elastic protrusions elastically abut against the opposite ends of the parallel line pair on the side near the inner sheath, and any two adjacent second elastic protrusions elastically abut against the opposite ends of the parallel line pair on the side away from the inner sheath.

[0013] In one possible implementation, a first buffer space is provided between the first buffer layer and the parallel line pair, and a second buffer space is provided between the second buffer layer and the parallel line pair.

[0014] In one possible implementation, the parallel line pair includes:

[0015] First shielding layer;

[0016] An insulating component located within the first shielding layer;

[0017] An electrical unit, which passes through the insulating member;

[0018] The second shielding layer is disposed on the outer periphery of the first shielding layer;

[0019] The ground wire is located inside the second shielding layer and is sandwiched between one end of the second shielding layer and the first shielding layer.

[0020] A first buffer element is located within the second shielding layer, and the first buffer element is sandwiched between the second shielding layer and the other end of the first shielding layer away from the ground wire.

[0021] In one possible implementation, the parallel line pair further includes an outer cladding layer and two second buffers. The outer cladding layer is disposed on the outer periphery of the second shielding layer, and the two second buffers are located on opposite sides of the second shielding layer, with the second buffers sandwiched between the second shielding layer and the outer cladding layer.

[0022] The first line connecting the center point of the first buffer and the center point of the ground wire is perpendicular to the second line connecting the center points of the two second buffers.

[0023] In one possible implementation, the direction of the first connecting line of the parallel line pair located within the receiving cavity is parallel to the radial direction of the inner sheath, and along the direction of the first connecting line, the ground wire is located at the end of the first buffer member closer to the center member.

[0024] The ground wire of the parallel line pair located within the buffer cavity is positioned opposite to the first buffer element of the adjacent parallel line pair.

[0025] In one possible implementation, the surface of the first side of the swing member is provided as an arcuate surface, which is disposed in contact with the surface of the outer layer. Along the direction of the first connecting line, the end of the arcuate surface away from the center member extends away from the center member to the side beyond the second buffer member.

[0026] The composite high-speed parallel cable of this application arranges parallel wire pairs within an inner sheath and a buffer assembly outside the inner sheath, with parallel wire pairs also located within the buffer cavity of the buffer assembly. This layering of parallel wire pairs prevents interference caused by their concentration within a single sheath. Furthermore, a support assembly within the inner sheath limits the position of the parallel wire pairs, ensuring installation stability. The support assembly also elastically supports the parallel wire pairs, improving their compressive strength within the inner sheath. The parallel wire pairs within the buffer cavity are further limited and elastically supported by the buffer assembly, enhancing their compressive strength and thus improving the overall compressive strength of the composite high-speed parallel cable. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the composite high-speed parallel cable of this application in one embodiment.

[0028] Figure 2 for Figure 1A partially enlarged schematic diagram of region II corresponding to the composite high-speed parallel cable.

[0029] Figure 3 This is a schematic diagram of the internal structure of the inner sheath of the composite high-speed parallel cable of this application in one embodiment.

[0030] Figure 4 This is a schematic diagram of the connection of the swing member in one embodiment of the composite high-speed parallel cable of this application.

[0031] Figure 5 This is a schematic diagram of the buffer assembly in another embodiment of the composite high-speed parallel cable of this application.

[0032] Key component symbols: 100, Composite high-speed parallel cable; 1, First receiving space; 2, Second receiving space; 3, Movable space; 10, Inner sheath; 11, Receiving cavity; 20, Parallel wire pair; 201, First gap; 202, Second gap; 21, Insulation component; 211, Cable tray; 212, Perforation; 22, Electrical unit; 23, First shielding layer; 24, Second shielding layer; 25, Ground wire; 26, First buffer component; 27, Outer sheath; 28, Second buffer component; 30, Support assembly; 31, Center. Components; 311, arc groove; 312, weight reduction hole; 313, movable groove; 32, swing component; 321, first swing part; 322, second swing part; 33, second elastic component; 34, rotating shaft; 35, first elastic component; 40, buffer assembly; 41, first buffer layer; 411, first elastic protrusion; 412, first buffer space; 42, second buffer layer; 421, second elastic protrusion; 422, second buffer space; 43, buffer cavity; 50, third shielding layer; 60, fourth shielding layer; 70, outer sheath.

[0033] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0034] The following description will refer to the accompanying drawings to provide a more complete picture of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. The same reference numerals denote the same or similar components.

[0035] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0036] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0037] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0038] like Figures 1 to 3 As shown, this embodiment provides a composite high-speed parallel cable 100, including an inner sheath 10, multiple parallel wire pairs 20, a support assembly 30, and a buffer assembly 40.

[0039] The inner sheath 10 is a circular structure made of insulating material, and a receiving cavity 11 is provided inside the inner sheath 10. Multiple parallel line pairs 20 are arranged circumferentially within the receiving cavity 11, and the multiple parallel line pairs 20 are equally spaced around the central axis of the inner sheath 10. The number of parallel line pairs 20 is set to four. It is understood that in other embodiments, the number of parallel line pairs 20 inside the inner sheath 10 may also be six or other numbers.

[0040] The support assembly 30 is located within the receiving cavity 11. The support assembly 30 is provided with a plurality of first receiving spaces 1 for receiving the parallel line pairs 20. Along the radial direction of the inner sheath 10, one end of the parallel line pairs 20 abuts against the inner sheath 10, and the other end elastically abuts against the support assembly 30. Along the circumferential direction of the inner sheath 10, the parallel line pairs 20 are limited by the support assembly 30.

[0041] The buffer assembly 40 is located on the outer periphery of the inner sheath 10. The buffer assembly 40 has a buffer cavity 43 for accommodating the parallel line pair 20. Along the radial direction of the inner sheath 10, the opposite sides of the parallel line pair 20 elastically abut against the cavity walls on both sides of the buffer cavity 43. Along the circumferential direction of the inner sheath 10, the parallel line pair 20 is limited by the buffer assembly 40.

[0042] Thus, the composite high-speed parallel cable 100 of this application, by setting parallel wire pairs 20 inside the inner sheath 10 and setting a buffer assembly 40 outside the inner sheath 10, with the buffer cavity 43 of the buffer assembly 40 also containing parallel wire pairs 20, layers the parallel wire pairs 20, avoiding interference between them if they are concentrated in a single sheath. Furthermore, a support assembly 30 is provided inside the inner sheath 10 to limit the position of the parallel wire pairs 20, ensuring the installation stability of the parallel wire pairs 20, and the support assembly 30 elastically supports the parallel wire pairs 20, thereby improving the compressive strength of the parallel wire pairs 20 located inside the inner sheath 10. The parallel wire pairs 20 in the buffer cavity 43 are limited by the buffer assembly 40, and the parallel wire pairs 20 are elastically supported by the buffer assembly 40, thereby improving the compressive strength of the parallel wire pairs 20, and thus improving the overall compressive strength of the composite high-speed parallel cable 100.

[0043] Please combine Figures 2 to 4 In one embodiment, the support component 30 includes a central member 31, a plurality of swing members 32, a plurality of first elastic members 35, and a plurality of second elastic members 33. The plurality of swing members 32 are arranged around the outer periphery of the central member 31, and one end of the swing member 32 near the central member 31 is oscillatingly connected to the central member 31.

[0044] Along the swing direction of the swing member 32, the swing member 32 has a first side and a second side arranged opposite to each other. Along the swing direction of the swing member 32, a first receiving space 1 is formed between the first side of any swing member 32 and an adjacent swing member 32, and the parallel line pair 20 is clamped between the two swing members 32 forming the first receiving space 1. In addition, the two swing members 32 clamping the same parallel line pair 20 are symmetrically arranged, that is, the first sides of the two swing members 32 are arranged opposite to each other and the first receiving space 1 is formed between them. The first elastic member 35 is configured to provide an elastic force to the swing member 32. Based on the elastic force, the swing member 32 can rotate toward the side of the parallel line pair 20 it clamps, so that the two swing members 32 always tend to move closer to each other under the action of their respective connected first elastic members 35.

[0045] Along the radial direction of the inner sheath 10, one end of the parallel line pair 20 abuts against the inner sheath 10, and the other end of the parallel line pair 20 is spaced apart from the center member 31 to form a movable space 3. The movable space 3 is configured to allow the parallel line pair 20 to move toward the center member 31. The second elastic member 33 is located in the movable space 3 and sandwiched between the parallel line pair 20 and the center member 31, so as to provide a second elastic force to the parallel line pair 20 to move toward the side away from the center member 31, thereby enabling the parallel line pair 20 to abut against the inner sheath 10 under the action of the second elastic force and ensuring the positional stability of the parallel line pair 20.

[0046] Thus, by forming a first receiving space 1 between the two swinging members 32 to accommodate the parallel line pair 20, and by having the two swinging members 32 elastically clamp the parallel line pair 20 through the first elastic member 35, the position of the parallel line pair 20 is ensured to be stable. The parallel line pair 20 has a movable space 3 within the first receiving space 1 that moves toward the center member 31. When the cable is compressed, the parallel line pair 20 is squeezed inward by the inner sheath 10 and squeezes the swinging members 32 on both sides to open. On the one hand, the pressure on the parallel line pair 20 can be reduced by moving the parallel line pair 20 inward, thereby improving the pressure resistance of the parallel line pair 20. On the other hand, when the two swinging members 32 are opened, they still maintain a partial contact with the parallel line pair 20, ensuring that the parallel line pair 20 is not easily deflected during movement. This ensures that after the pressure is removed, the parallel line pair 20 can be reset to its initial position under the action of the second elastic member 33. In addition, the two swing members 32 are attached to both sides of the parallel line pair 20, which can increase the area covered by the parallel line pair 20 while ensuring the stability of the position of the parallel line pair 20, so as to further improve the compressive strength of the parallel line pair 20.

[0047] Please combine Figures 2 to 3 In one embodiment, the parallel line pair 20 includes a first shielding layer 23, an insulating element 21, an electrical unit 22, a second shielding layer 24, a ground wire 25, and a first buffer element 26. The insulating element 21 is located within the first shielding layer 23, the electrical unit 22 passes through the insulating element 21, and the second shielding layer 24 is disposed on the outer periphery of the first shielding layer 23. The ground wire 25 is located within the second shielding layer 24 and is sandwiched between one end of the second shielding layer 24 and the first shielding layer 23. The first buffer element 26 is located within the second shielding layer 24 and is sandwiched between the other end of the second shielding layer 24 and the first shielding layer 23 away from the ground wire 25.

[0048] The insulating component 21 has two wire grooves 211. The two wire grooves 211 are arranged in parallel and spaced apart along the direction of the first connecting line. The electrical unit 22 is located in the wire groove 211.

[0049] The cross-sectional shape of the insulating component 21 is approximately racetrack-shaped, and it is made of an insulating material, such as an insulating resin material suitable for high-speed extrusion, thin-wall molding, and high electrical performance, and capable of melt processing. Specifically, the insulating resin material can be PE, PP, FEP, ETFE, or PTFE. The insulating component 21 can be directly integrally molded around the periphery of two parallel electrical units 22, thereby covering the two electrical units 22 and forming two wire-passing grooves 211. The electrical units 22 are made of highly conductive metals such as copper.

[0050] The insulating component 21 is provided with multiple through holes 212. Multiple through holes 212 are provided at intervals outside any one of the wire grooves 211, and the multiple through holes 212 provided outside the same wire groove 211 are arranged in a circumferential array. This can effectively reduce the equivalent dielectric constant of the insulating component 21, thereby reducing cable loss. In addition, the setting of multiple through holes 212 can enable the portion of the insulating component 21 covering the electrical unit 22 to provide buffer protection for the electrical unit 22, thereby improving the compressive strength of the parallel wire pair 20.

[0051] In this embodiment, the parallel line pair 20 further includes an outer cladding layer 27 and two second buffers 28. The outer cladding layer 27 is disposed on the outer periphery of the second shielding layer 24, and the two second buffers 28 are located on opposite sides of the second shielding layer 24, and the second buffers 28 are sandwiched between the second shielding layer 24 and the outer cladding layer 27.

[0052] The first shielding layer 23 is disposed around the outer periphery of the insulating member 21, and the first shielding layer 23 may be a shielding structure such as copper foil. The second shielding layer 24 is disposed around the outer periphery of the first shielding layer 23, and the second shielding layer 24 may be a shielding structure such as aluminum foil. Along the direction of the long side of the insulating member 21, a first gap 201 is formed between both ends of the first shielding layer 23 and the second shielding layer 24. Along the direction of the short side of the insulating member 21, the two opposite sides of the second shielding layer 24 are attached to the first shielding layer 23. The first buffer member 26 is located within one of the first gaps 201, and the ground wire 25 is located within the other first gap 201. The first buffer member 26 is made of insulating material, and the first buffer member 26 has a hollow cylindrical structure so that the first buffer member 26 can undergo a certain degree of elastic deformation. The outer diameter of the ground wire 25 is the same as the outer diameter of the first buffer member 26, and the ground wire 25 may be any one of bare copper ground wire, silver-plated copper-clad steel ground wire, or silver-plated copper-clad aluminum ground wire.

[0053] The outer sheath 27 can be made of insulating material such as PE, and it surrounds the outer periphery of the second shielding layer 24. Along the direction of the short side of the insulating member 21, a second gap 202 is formed between the outer sheath 27 and the opposite sides of the second shielding layer 24. Along the direction of the long side of the insulating member 21, the two opposite ends of the outer sheath 27 are attached to the second shielding layer 24. Two second buffer members 28 are located within the two second gaps 202 respectively. The second buffer members 28 are made of insulating material and have a hollow cylindrical structure, allowing them to undergo a certain degree of elastic deformation.

[0054] The first line connecting the center point of the first buffer 26 and the center point of the ground wire 25 is perpendicular to the second line connecting the center points of the two second buffers 28. That is, the center point of the quadrilateral formed by connecting the center points of the first buffer 26, the ground wire 25, and the two second buffers 28 coincides with the center point of the insulating member 21, so as to ensure the structural symmetry of the entire parallel line pair 20. In addition, the first buffer 26 or the second buffer 28 is provided on each of the four sides of the insulating member 21 except for the position of the ground wire 25. When the parallel line pair 20 is subjected to pressure on any side, the first buffer 26 or the second buffer 28 can provide pressure resistance protection.

[0055] Specifically, the direction of the first connecting line is parallel to the radial direction of the inner sheath 10, and along the direction of the first connecting line, the ground wire 25 is located at the end of the first buffer member 26 near the center member 31, so that the end of each parallel line pair 20 with the ground wire 25 is away from the inner sheath 10, while the end of the parallel line pair 20 with the first buffer member 26 abuts against the inner sheath 10. Thus, when the inner sheath 10 applies pressure to the parallel line pair 20, the pressure acts on the end of the parallel line pair 20 with the first buffer member 26. When the parallel line pair 20 is subjected to external force along the direction of the first connecting line by the first buffer member 26, the compressive strength of the parallel line pair 20 can be improved, and the ground wire 25 is prevented from being directly compressed and damaged.

[0056] Thus, by setting a first shielding layer 23 and a second shielding layer 24 within the parallel wire pair 20 to form a double shielding structure, the shielding effect can be improved, avoiding problems such as interference between the parallel wire pairs 20 when multiple parallel wire pairs 20 are combined within the same inner sheath 10. Furthermore, the inner side of the second shielding layer 24 is supported by the ground wire 25 and the first buffer member 26, while the outer side of the second shielding layer 24 is supported by two second buffer members 28. This allows the second shielding layer 24 to be roughly sandwiched between the ground wire 25, the first buffer member 26, and the two second buffer members 28. The second shielding layer 24 is also supported by the inner first shielding layer 23, which is supported by an insulating member 21, which is mostly a solid structure. This maintains the structural stability of the second shielding layer 24, ensuring that it is not easily deformed under external forces, thus affecting the operation of the internal electrical unit 22 and further improving the compressive strength of the parallel wire pair 20.

[0057] Please combine Figures 2 to 4 In one embodiment, the swing member 32 includes a first swing portion 321 and a second swing portion 322. One end of the first swing portion 321 is oscillatingly connected to the center member 31, and the first swing portion 321 is spaced apart from the adjacent parallel line pair 20. The second swing portion 322 is connected to the other end of the first swing portion 321 away from the center member 31, and one side of the second swing portion 322 is attached to the parallel line pair 20.

[0058] The center point of the central member 31 coincides with the center point of the inner sheath 10. A weight-reducing hole 312 is provided at the center of the central member 31. Multiple arc-shaped grooves 311 are provided on the outer periphery of the central member 31. The number of arc-shaped grooves 311 is the same as the number of parallel line pairs 20, and the arc-shaped grooves 311 correspond one-to-one with the parallel line pairs 20. A second elastic member 33 is arranged radially along the inner sheath 10. The second elastic member 33 can be a spring, and one end of the second elastic member 33 is elastically connected to the groove wall of the arc-shaped groove 311, while the other end of the second elastic member 33 elastically abuts against the end of the parallel line pair 20 where the ground wire 25 is located. It is understood that in other embodiments, the second elastic member 33 can also be other folding structures capable of elastic deformation.

[0059] Thus, by providing a second elastic force to the parallel line pair 20 through the second elastic member 33, on the one hand, the end of the parallel line pair 20 with the first buffer member 26 can be kept in a resisting state with the inner sheath 10, ensuring the positional stability of the parallel line pair 20 and realizing the formation of a buffer structure between the parallel line pair 20 and the inner sheath 10. On the other hand, it can provide elastic support to the end of the parallel line pair 20 with the ground wire 25, which can prevent the end of the parallel line pair 20 with the ground wire 25 from directly contacting the center member 31. Under pressure, the end of the parallel line pair 20 with the ground wire 25 may directly resist the center member 31, causing damage to the ground wire 25.

[0060] In this embodiment, along the swing direction of the swing member 32, the thickness of the first swing part 321 is less than the thickness of the second swing part 322, and the side of the first swing part 321 away from its adjacent parallel line pair 20 and the side of the second swing part 322 away from its adjacent parallel line pair 20 are coplanar, so that a clearance space is formed between the first swing part 321 and the parallel line pair 20. When the parallel line pair 20 is pressed and moves toward the side of the center member 31, the parallel line pair 20 squeezes the swing members 32 on both sides of it, causing the swing member 32 to swing. This clearance space can ensure that the first swing part 321 can swing normally without being interfered with by the parallel line pair 20 moving toward it.

[0061] The first swinging part 321 is oscillatingly connected to the area of ​​the center member 31 that does not have an arc groove 311 via a rotating shaft 34. For example, the area of ​​the center member 31 that does not have an arc groove 311 has a movable groove 313. The end of the first swinging part 321 away from the second swinging part 322 is oscillatingly disposed in the movable groove 313. The axis of the rotating shaft 34 is parallel to the direction of the central axis of the center member 31. The rotating shaft 34 passes through the first swinging part 321, and both ends of the rotating shaft 34 are rotatably connected to the groove wall of the movable groove 313, so as to realize that the swinging member 32 rotates relative to the center member 31 around the axis of the rotating shaft 34.

[0062] In this embodiment, along the swing direction of the swing member 32, a second receiving space 2 is formed between the two swing members 32 on the second side away from the parallel line pair 20 they hold. The first elastic member 35 is a spring, located within the second receiving space 2, and its two ends are elastically connected to the second side of the two swing members 32, so that when the swing member 32 swings toward the side away from the parallel line pair 20 it holds, the first elastic member 35 is further compressed.

[0063] In this embodiment, the surface of the first side of the swing member 32 is an arc-shaped surface, which is disposed in contact with the surface of the outer cladding layer 27. Along the direction of the first connecting line, the end of the arc-shaped surface away from the center member 31 extends beyond the second buffer member 28. The portion of the swing member 32 connected to the first elastic member 35 has a second gap 202 corresponding to the portion of the parallel line pair 20 it holds, so as to construct a lateral buffering structure for the parallel line pair 20 through the space formed by the second buffer member 28 and the second gap 202, so as to avoid the first elastic member 35 from exerting a large pressure on the other parallel line pair 20 when the first elastic member 35 connected to it is compressed due to the compression of one parallel line pair 20.

[0064] Along the swing direction of the swing member 32, the surface of the second swing part 322 near its adjacent parallel line pair 20 is set as an arc-shaped surface. The arc-shaped surface is set to fit against the surface of the parallel line pair 20, and the arc-shaped surface covers the area of ​​the outer layer 27 corresponding to the second buffer member 28. On the one hand, the area of ​​the parallel line pair 20 held by the second swing part 322 is the area that forms the second gap 202. With the cooperation of the second buffer member 28, the swing member 32 and the parallel line pair 20 can achieve buffering, thereby improving the compressive strength of the parallel line pair 20. On the other hand, the first receiving space 1 formed by the two swing members 32 is set to be constricted at the end away from the center member 31. This makes the position of the parallel line pair 20 clamped by the two swing members 32 more stable. When the parallel line pair 20 is pressed and moves toward the center member 31, the two swing members 32 will provide a certain resistance to the parallel line pair 20, further improving the compressive strength of the parallel line pair 20.

[0065] Specifically, the surface of the first side of the swing member 32 and the groove wall of the arc-shaped groove 311 are provided with an electromagnetic shielding layer, which can be a structure such as a metal coating. In addition, in other embodiments, conductive fillers (such as silver nanowires, carbon nanotubes, graphene) can be uniformly dispersed in an elastomer matrix (such as PDMS, silicone rubber) and then coated or printed on the surface of the elastomer. This coating itself is like a piece of conductive rubber and can be stretched together with the matrix.

[0066] Furthermore, the electromagnetic shielding layer on the surface of the first side of the swing member 32 and the electromagnetic shielding layer on the wall of the arc groove 311 form a continuous electromagnetic shielding structure to cover the outer periphery of the parallel line pairs 20, further improving the anti-interference capability between the parallel line pairs 20 located in the receiving cavity 11.

[0067] Please combine Figure 5 And see Figure 2 and Figure 3 In one embodiment, the buffer assembly 40 includes a first buffer layer 41 and a second buffer layer 42. The first buffer layer 41 is disposed on the outer periphery of the inner sheath 10, and the second buffer layer 42 is disposed at intervals on the outer periphery of the first buffer layer 41, and a buffer cavity 43 is formed between the second buffer layer 42 and the first buffer layer 41.

[0068] Along the circumference of the inner sheath 10, a plurality of parallel line pairs 20 are arranged sequentially around the outer peripheral surface of the first buffer layer 41, and the second connecting line of the parallel line pairs 20 is parallel to the radial direction of the inner sheath 10, so that the two second buffer members 28 in the direction of the second connecting line of the parallel line pairs 20 can ensure that the parallel line pairs 20 located outside the inner sheath 10 can have high compressive strength.

[0069] Furthermore, in any two adjacent parallel line pairs 20, the end of the parallel line pair 20 with a ground wire 25 is positioned opposite to the end of the adjacent parallel line pair 20 with a first buffer member 26. Through the buffer space formed by the first buffer member 26 of one parallel line pair 20 and the first gap 201 of the parallel line pair 20, the end of the adjacent parallel line pair 20 with a ground wire 25 can be buffered and protected, preventing damage to the ground wire 25. Moreover, when the cable encounters torsion or compression, the circumferential distribution system with buffer protection between adjacent parallel line pairs 20 can further improve the compressive strength and torsion resistance of the parallel line pairs 20 in the entire buffer cavity 43.

[0070] In this embodiment, a first elastic protrusion 411 protrudes from the side of the first buffer layer 41 near the second buffer layer 42, and a second elastic protrusion 421 protrudes from the side of the second buffer layer 42 near the first buffer layer 41. The first buffer layer 41 and the second buffer layer 42 can be made of insulating material such as PE. The first elastic protrusion 411 and the second elastic protrusion 421 are made of the same material as the first buffer layer 41 and the second buffer layer 42, i.e., they can also be made of insulating material such as PE. Furthermore, the interior of both the first elastic protrusion 411 and the second elastic protrusion 421 can be configured as a hollow structure to further improve the elastic buffering performance of the first elastic protrusion 411 and the second elastic protrusion 421.

[0071] Any two adjacent first elastic protrusions 411 elastically abut against the opposite ends of the parallel line pair 20 on the side closer to the inner sheath 10, and any two adjacent second elastic protrusions 421 elastically abut against the opposite ends of the parallel line pair 20 on the side away from the inner sheath 10.

[0072] Along the circumference of the inner sheath 10, any two adjacent first elastic protrusions 411 are spaced apart, and the distance between the two adjacent first elastic protrusions 411 is less than the width of the long side of the parallel line pair 20, so that both first elastic protrusions 411 abut against the area of ​​the outer protective layer of the parallel line pair 20 forming the second gap 202. Along the circumference of the inner sheath 10, any two adjacent second elastic protrusions 421 are spaced apart, and the distance between the two adjacent second elastic protrusions 421 is less than the width of the long side of the parallel line pair 20, so that both second elastic protrusions 421 abut against the area of ​​the outer protective layer of the parallel line pair 20 forming the second gap 202. In this way, the two first elastic protrusions 411 and the two second elastic protrusions 421 cooperate to support the area of ​​the outer protective layer of the parallel line pair 20 forming the second gap 202, and the two second buffer members 28 achieve buffer protection for the parallel line pair 20, ensuring that the parallel line pair 20 located in the buffer cavity 43 has excellent compressive strength.

[0073] In other embodiments, a first buffer space 412 is provided between the first buffer layer 41 and the parallel line pair 20, and a second buffer space 422 is provided between the second buffer layer 42 and the parallel line pair 20.

[0074] Along the radial direction of the inner sheath 10, the first elastic protrusion 411 supports the parallel line pair 20, causing the first buffer layer 41 and the parallel line pair 20 to be spaced apart to form a first buffer space 412. The second elastic protrusion 421 supports the parallel line pair 20, causing the second buffer layer 42 and the parallel line pair 20 to be spaced apart to form a second buffer space 422. This ensures that the parallel line pair 20 is in a non-contact state with the first buffer layer 41 and the second buffer layer 42, avoiding direct contact between the parallel line pair 20 and the first buffer layer 41 and the second buffer layer 42, which would otherwise result in excessive pressure on the parallel line pair 20.

[0075] Furthermore, when the second buffer layer 42 is subjected to external pressure, the second buffer layer 42 acts on the parallel line pair 20 through the second elastic protrusion 421. The parallel line pair 20 squeezes the first elastic protrusion 411 and moves toward the first buffer layer 41. When the pressure is too great and the parallel line pair 20 comes into contact with the first buffer layer 41, the first buffer layer 41 and the two first elastic protrusions 411 can jointly elastically support the parallel line pair 20, thereby improving the elastic support effect on the parallel line pair 20. The area where the three act is the area of ​​the outer protective layer of the parallel line pair 20 with the second gap 202, thereby maximizing the compressive strength of the parallel line pair 20 located in the buffer cavity 43.

[0076] In this embodiment, a certain gap is left between any two adjacent parallel line pairs 20 along the circumference of the inner sheath 10. Along the radial direction of the inner sheath 10, the ends of the first elastic protrusion 411 away from the first buffer layer 41 and the second elastic protrusion 421 away from the second buffer layer 42 extend close to each other until they are in contact. The first elastic protrusion 411 and the second elastic protrusion 421 extend into the gap between the two parallel line pairs 20, dividing the buffer cavity 43 into independent chambers, with each parallel line pair 20 located within an independent chamber. Furthermore, the surfaces of the first elastic protrusion 411 and the second elastic protrusion 421 are provided with an electromagnetic shielding layer to achieve electromagnetic shielding between the two parallel line pairs 20 through the cooperation of the first elastic protrusion 411 and the opposing second elastic protrusion 421. The electromagnetic shielding layer has the same structure and principle as the swing member 32 described above, and will not be repeated here. It is worth noting that the structure in which the first elastic protrusion 411 and the second elastic protrusion 421 are in contact with each other can also enable the multiple parallel line pairs 20 in the buffer cavity 43 to form the above-mentioned circumferential distribution system with buffer protection.

[0077] In this embodiment, the portion of the inner sheath 10 supported by the parallel line pair 20 located in the receiving cavity 11 supports the portion of the outer sheath supported by the second buffer member 28 in the parallel line pair 20 located in the buffer cavity 43. That is, the first connecting line of the parallel line pair 20 located in the receiving cavity 11 can be collinearly arranged with the second connecting line of the parallel line pair 20 located in the buffer cavity 43. This further improves the compressive strength of the inner and outer parallel line pairs 20 when the pressure is transmitted through the buffer layer to the inner sheath and further acts on the parallel line pair 20 located in the receiving cavity 11. The collinear arrangement of the first connecting line and the second connecting line can further improve the compressive strength of the inner and outer parallel line pairs 20, thereby improving the compressive strength of the entire composite high-speed parallel cable 100.

[0078] Please combine Figure 1 In one embodiment, the composite high-speed parallel cable 100 further includes a third shielding layer 50, a fourth shielding layer 60, and an outer sheath 70.

[0079] The third shielding layer 50 is located between the inner sheath 10 and the first buffer layer 41. The fourth shielding layer 60 is wrapped around the outer periphery of the second buffer layer 42, and the outer sheath 70 is wrapped around the outer periphery of the fourth shielding layer 60, so as to further improve the electromagnetic shielding effect of the composite high-speed parallel cable 100 through the arrangement of the third shielding layer 50 and the fourth shielding layer 60.

[0080] In this embodiment, the third shielding layer 50 can be any one of the shielding structures such as copper foil layer, aluminum foil layer, and metal wire braided layer, and the fourth shielding layer 60 can be any one of the shielding structures such as copper foil layer, aluminum foil layer, and metal wire braided layer. The outer sheath 70 is made of wear-resistant insulating material.

[0081] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A composite high-speed parallel cable, characterized in that, include: Inner sheath, which has a receiving cavity inside; Multiple parallel line pairs are arranged circumferentially within the receiving cavity; each parallel line pair includes a first shielding layer, a second shielding layer, a ground wire, a first buffer, an outer sheath, and two second buffers. The second shielding layer is located on the outer periphery of the first shielding layer; the ground wire is located within the second shielding layer and is sandwiched between one end of the second shielding layer and the first shielding layer; the first buffer is located within the second shielding layer and is sandwiched between the second shielding layer and the other end of the first shielding layer away from the ground wire; the outer sheath is located on the outer periphery of the second shielding layer; the two second buffers are located on opposite sides of the second shielding layer and are sandwiched between the second shielding layer and the outer sheath; a first line connecting the center point of the first buffer and the ground wire is perpendicular to a second line connecting the center points of the two second buffers. A support assembly located within the receiving cavity, the support assembly including a central member and a plurality of swing members, the plurality of swing members being arranged around the outer periphery of the central member, and the end of each swing member near the central member being swingably connected to the central member; Along the swing direction of the swinging member, a first receiving space is formed between the first side of any one of the swinging members and the adjacent swinging member, and the parallel line pair is clamped between the two swinging members forming the first receiving space, so that the parallel line pair is limited by the support component along the circumference of the inner sheath; along the radial direction of the inner sheath, one end of the parallel line pair abuts against the inner sheath, and the other end elastically abuts against the center member; A buffer assembly is disposed on the outer periphery of the inner sheath. The buffer assembly has a buffer cavity for accommodating the parallel line pairs. Along the radial direction of the inner sheath, the opposite sides of the parallel line pairs elastically abut against the cavity walls on both sides of the buffer cavity. Along the circumferential direction of the inner sheath, the parallel line pairs are limited by the buffer assembly. The buffer assembly includes a first buffer layer and a second buffer layer. The first buffer layer is disposed on the outer periphery of the inner sheath. The second buffer layer is disposed at intervals on the outer periphery of the first buffer layer, and the buffer cavity is formed between the second buffer layer and the first buffer layer. A first elastic protrusion is provided on the side of the first buffer layer near the second buffer layer, and a second elastic protrusion is provided on the side of the second buffer layer near the first buffer layer. Any two adjacent first elastic protrusions elastically abut against the opposite ends of the parallel line pairs on the side near the inner sheath, and any two adjacent second elastic protrusions elastically abut against the opposite ends of the parallel line pairs on the side away from the inner sheath. Wherein, the direction of the first connecting line of the parallel line pair located in the receiving cavity is parallel to the radial direction of the inner sheath, and along the direction of the first connecting line, the ground line is located at the end of the first buffer member near the center member; the ground line of the parallel line pair located in the buffer cavity is disposed opposite to the first buffer member of the adjacent parallel line pair, the distance between two adjacent first elastic protrusions is less than the long side width of the parallel line pair, and the distance between two adjacent second elastic protrusions is less than the long side width of the parallel line pair.

2. The composite high-speed parallel cable as described in claim 1, characterized in that, The support assembly includes multiple first elastic elements and multiple second elastic elements; The first elastic element is configured to provide an elastic force to the oscillating element, based on which the oscillating element can rotate toward one side of the parallel line pair it holds.

3. The composite high-speed parallel cable as described in claim 2, characterized in that, Along the radial direction of the inner sheath, one end of the parallel line pair abuts against the inner sheath, and the other end of the parallel line pair is spaced apart from the center member to form a movable space. The movable space is configured to allow the parallel line pair to move toward one side of the center member. The second elastic member is located within the movable space and sandwiched between the parallel line pair and the center member.

4. The composite high-speed parallel cable as described in claim 2, characterized in that, The swinging member includes a first swinging part and a second swinging part. One end of the first swinging part is oscillatingly connected to the center member, and the first swinging part is spaced apart from the adjacent pair of parallel lines. The second swinging part is connected to the other end of the first swinging part away from the center member, and one side of the second swinging part is attached to the pair of parallel lines.

5. The composite high-speed parallel cable as described in claim 1, characterized in that, A first buffer space is provided between the first buffer layer and the parallel line pair, and a second buffer space is provided between the second buffer layer and the parallel line pair.

6. The composite high-speed parallel cable as described in claim 2, characterized in that, The parallel line pairs include: An insulating component located within the first shielding layer; An electrical unit, which passes through the insulating member.

7. The composite high-speed parallel cable as described in claim 2, characterized in that, The surface of the first side of the swing member is set as an arc surface, which is disposed in contact with the surface of the outer layer. Along the direction of the first connecting line, the end of the arc surface away from the center member extends to the side away from the center member and beyond the second buffer member.

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