A wire merging method and a wire merging structure

Abstract

The present invention discloses a wire merging method and a wire merging structure, which belong to the technical field of cables. The wire merging method includes forming an insulating medium outside each core wire; forming an outer conductor covering the insulating medium outside each of the insulating media to obtain a plurality of first structures; arranging the plurality of first structures side by side and making the axes of the plurality of first structures parallel to each other; intertwining and winding wires outside two adjacent first structures so that the outer conductors of two adjacent first structures are electrically connected through the wires to obtain a second structure; and forming a sheath layer outside the second structure to obtain a wire merging structure. The wire merging method and the wire merging structure provided by the present invention can reduce the workload of wire merging, save time and effort, have high efficiency and low defect rate, and ensure the consistency of the grounding effect and grounding quality of the wire merging structure obtained after wire merging.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a wire merging method and a wire merging structure. Background Art

[0002] A coaxial cable is a guiding system composed of two coaxial cylindrical conductors. Usually, air or high-frequency dielectric is filled between the inner and outer conductors, and it can be used as a broadband microwave transmission. Generally, the outer conductor of the coaxial cable is grounded, and the electromagnetic field is confined between the inner and outer conductors, so that the coaxial cable has almost no radiation loss and is hardly affected by external signals.

[0003] A coaxial cable includes an inner conductor, an insulating medium wrapped around the inner conductor, an outer conductor wrapped around the insulating medium, and a sheath wrapped around the outer conductor. In a product, there are usually multiple coaxial cables, and there is a need for multiple coaxial cables to be merged and grounded together. In the prior art, the merging and grounding of two coaxial cables are achieved by soldering. The soldering operation process is as follows: strip off part of the sheath of the two coaxial cables to expose part of the outer conductor, then pre-tin the outer conductors of the two coaxial cables respectively, that is, fix tin on the exposed two outer conductors, then align and pre-merge the two coaxial cables so that the tinned parts on the two coaxial cables can be in contact, and finally solder the tinned parts on the two coaxial cables to achieve the merging and grounding of the two.

[0004] However, in order to ensure the grounding effect, multiple merging points are usually set on the coaxial cable, and workers need to perform the above-mentioned soldering operation on each collinear point, resulting in a large amount of wire merging work, time-consuming and laborious, and a high defect rate. The grounding effects and grounding qualities after wire merging are uneven. Summary of the Invention

[0005] The purpose of the present invention is to provide a wire merging method and a wire merging structure, which can reduce the workload of wire merging, save time and effort, have high efficiency and low defect rate, and ensure the consistency of the grounding effect and grounding quality of the wire merging structure obtained after wire merging.

[0006] As conceived above, the technical solution adopted by the present invention is as follows:

[0007] A wire merging method includes the following steps:

[0008] S1. Form an insulating medium outside each core wire;

[0009] S2. Form an outer conductor covering the insulating medium outside each of the insulating media to obtain a plurality of first structures;

[0010] S3. Arrange the plurality of first structures side by side and make the axes of the plurality of first structures parallel to each other;

[0011] S4. Intertwine and wind a wire outside two adjacent ones of the first structures, so that the outer conductors of the two adjacent first structures are electrically connected through the wire, and a second structure is obtained;

[0012] S5. Form a sheath layer outside the second structure to obtain a wire merging structure.

[0013] Optionally, in step S4, control the wire to wind around one of the first structures for a first preset number of turns and then wind around the other first structure, and wind around the other first structure for a second preset number of turns.

[0014] Optionally, there are multiple wires, and the multiple wires are arranged at intervals along the axial direction of the first structure, and each wire is intertwined and wound outside two adjacent first structures, or the multiple wires are intertwined and wound in a staggered manner outside two adjacent first structures.

[0015] Optionally, after step S4, the wire merging method further includes: winding an auxiliary wire around the area of the first structure where the wire is not wound.

[0016] Optionally, in step S5, after forming the sheath layer outside the second structure, cut grooves are formed in the part of the sheath layer between two adjacent outer conductors.

[0017] The present invention also provides a wire merging structure, including:

[0018] An inner conductor, including a plurality of core wires arranged side by side, and the axes of the plurality of core wires are parallel to each other;

[0019] Insulating media, there are a plurality of them, and the plurality of insulating media correspond to the plurality of core wires one by one, and the insulating media are coated outside their corresponding core wires;

[0020] Outer conductors, there are a plurality of them, and the plurality of outer conductors correspond to the plurality of insulating media one by one, and the outer conductors are arranged outside their corresponding insulating media;

[0021] Wires, intertwined and wound outside two adjacent outer conductors, and the wires are used to electrically connect adjacent outer conductors;

[0022] A sheath layer, and the sheath layer coats the outer conductors and / or the wires.

[0023] Optionally, the wire includes a plurality of first cores, and the plurality of first cores are arranged side by side.

[0024] Optionally, it further includes an auxiliary wire, and the auxiliary wire is wound around the area of the outer conductor where the wire is not wound, and the sheath layer coats the auxiliary wire.

[0025] Optionally, the auxiliary line includes a plurality of second cores, and the plurality of second cores are arranged side by side.

[0026] Optionally, the auxiliary line is spirally arranged outside the outer conductor.

[0027] Optionally, there is one wire, and one wire is intertwined from one end of the outer conductor to the other end of the outer conductor, or there are multiple wires, and the multiple wires are wound at different positions of the outer conductor at intervals.

[0028] Optionally, the outer conductor is spirally arranged outside the insulating medium, or the outer conductor is braided outside the insulating medium.

[0029] Optionally, the wire includes a plurality of first cores, and the plurality of first cores are arranged side by side.

[0030] Optionally, the outer surface of the sheath layer has a cut groove on the part between two adjacent outer conductors.

[0031] Optionally, the cut groove is an arc-shaped groove or a tapered groove.

[0032] The present invention has at least the following beneficial effects;

[0033] The wire merging method and wire merging structure provided by the present invention, after forming an outer conductor outside the insulating medium to obtain a first structure, arranging a plurality of first structures side by side, and then intertwining and winding wires outside two adjacent first structures so that the two adjacent first structures are electrically connected through the wires to obtain a second structure, and finally forming a sheath layer outside the second structure, so that the step of post-process welding and wire merging is adjusted to the step of pre-process winding and wire merging, which is convenient for wire merging of coaxial cables, reduces the workload of wire merging, saves time and effort, has high efficiency and low defect rate, and ensures the consistency of the grounding effect and grounding quality after wire merging. Description of the Drawings

[0034] Figure 1 is a flowchart of the wire merging method provided in Embodiment 1 of the present invention;

[0035] Figure 2 is a schematic diagram of the wire merging structure provided in Embodiment 2 of the present invention;

[0036] Figure 3 is a winding schematic diagram of the conductor provided in Embodiment 2 of the present invention;

[0037] Figure 4 is a schematic diagram of the wire merging structure provided in Embodiment 2 of the present invention without showing the sheath layer Figure 1 ;

[0038] Figure 5Schematic diagram of the parallel wire structure provided in the second embodiment of the present invention without showing the sheath layer Figure 2 ;

[0039] Figure 6 Cross-sectional schematic diagram of the parallel wire structure provided in the second embodiment of the present invention

[0040] In the figure:

[0041] 1. Inner conductor 1; 11. Core wire; 2. Insulating medium; 3. Outer conductor; 4. Conducting wire; 41. First core body; 42. First conducting wire; 43. Second conducting wire; 5. Sheath layer; 51. Cutting groove; 6. Auxiliary wire; 61. Second core body Detailed implementation manners

[0042] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all of them

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations

[0045] Embodiment 1

[0046] This embodiment provides a parallel wire method that can be used for parallel wire processing of multiple coaxial cables, with high parallel wire efficiency and low defect rate

[0047] As Figure 1 shown, the parallel wire method includes the following steps

[0048] S1. Form an insulating medium outside each core wire.

[0049] Before step S1, multiple core wires 11 can be prepared first. The lengths and wire diameters of the multiple core wires 11 are the same, and the core wires 11 are used to form the inner conductor 1 of the coaxial cable parallel wire structure. Copper is the main material of the core wires 11. The core wires 11 can be in the following forms: annealed copper wire, annealed copper tube, copper-clad aluminum, silver-plated soft copper wire or tin-plated soft copper wire. Usually, the inner conductor 1 of a relatively thin parallel wire structure is a copper wire or a copper-clad aluminum wire, while a relatively thick parallel wire structure uses a copper tube to reduce the weight and cost of the parallel wire structure. In step S1, an insulating medium 2 can be coated on the outer layer of each core wire 11 through an extrusion device, and the thickness of the insulating medium 2 can be determined according to actual needs. The insulating medium 2 in this embodiment is mainly used to improve the anti-interference performance, waterproof performance and anti-oxygen erosion performance of the parallel wire structure.

[0050] S2. Form an outer conductor coated with an insulating medium outside each insulating medium to obtain multiple first structures.

[0051] Among them, the outer conductor 3 can not only conduct low level through the transmission loop, but also has a shielding effect. In this embodiment, the outer conductor 3 can be arranged in a spiral shape outside the insulating medium 2, that is, the outer conductor 3 is formed by winding a wire around the surface of the insulating medium 2, or the outer conductor 3 is arranged in a braided shape outside the insulating medium 2. The outer conductor 3 with the above two structures has good bending performance. And, in some embodiments, the outer conductor 3 can be a combination of a braided mesh and a longitudinally wrapped aluminum-plastic composite tape. This structure is developed from a single braided mesh structure and has the advantages of good softness, light weight and reliable joints. By adopting a reasonable composite structure, the shielding performance of the outer conductor 3 can be effectively improved. In some other embodiments, the outer conductor 3 can also be a metal tube or an aluminum-plastic composite tape longitudinally wrapped and lapped structure. The outer conductor 3 in the shape of a metal tube has the best shielding performance, and the aluminum-plastic composite tape longitudinally wrapped and lapped structure also has good shielding performance and low manufacturing cost.

[0052] After forming the outer conductor 3 outside the insulating medium 2, a first structure can be obtained, that is, the first structure includes the core wire 11, the insulating medium 2 wrapped outside the core wire 11 and the outer conductor 3 wrapped outside the insulating medium 2.

[0053] S3. Arrange multiple first structures side by side and make the axes of the multiple first structures parallel to each other.

[0054] After obtaining multiple first structures, arrange the multiple first structures side by side and make the axes of the multiple first structures parallel to each other to facilitate the winding of subsequent wires.

[0055] S4. Intertwine and wind a wire between two adjacent first structures so that the outer conductors of the two adjacent first structures are electrically connected through the wire 4, and a second structure is obtained.

[0056] Among them, the two adjacent first structures can be any two adjacent first structures. And when a first structure has two adjacent first structures, this first structure can wind the wire 4 with the two adjacent first structures respectively.

[0057] The intertwined winding in this embodiment can be understood as that after the wire 4 winds several turns on a first structure, it winds around another adjacent first structure for several turns, and then winds around this first structure for several turns, and continues to wind according to this rule until the electrical connection requirements of the two first structures are met.

[0058] Or, the intertwined winding can also be understood as that after winding several turns on a first structure, it winds around another adjacent first structure for several turns and then is truncated. After that, at a target position at a certain length from the truncated position, a wire 4 is wound again according to the above winding method. That is, there are multiple wires 4, and the multiple wires 4 are arranged at intervals along the axial direction of the first structure, and each wire 4 is intertwined and wound outside two adjacent first structures to ensure the reliability of the electrical connection between the two adjacent first structures.

[0059] Or, the intertwined winding can also be understood as the staggered winding of multiple wires outside two adjacent first structures. Specifically, a first structure has a first region, a second region, and a third region arranged in sequence along its axial direction, and a first structure adjacent to this first structure has a fourth region, a fifth region, and a sixth region arranged in sequence along its axial direction. Among them, the first region is opposite to the fourth region, the second region is opposite to the fifth region, and the third region is opposite to the sixth region. As Figure 3 shown, the parallel connection structure includes a first wire 42 and a second wire 43. After the first wire 42 winds several turns in the first region, it winds around the fifth region and winds several turns in the fifth region, and then winds around the third region and winds several turns in the third region. After the second wire 43 winds several turns in the fourth region, it winds to the second region and winds several turns in the second region, and then winds to the sixth region and winds several turns in the sixth region. This winding method is the above-mentioned staggered winding.

[0060] When the wire 4 is wound around a first structure, it can be electrically connected to the outer conductor 3 of the first structure; when the wire 4 is wound around another first structure, it can be electrically connected to the outer conductor 3 of the other first structure, so that the two outer conductors 3 can be electrically connected through the wire 4. When the outer conductors 3 of multiple first structures are all directly or indirectly electrically connected through the wire 4, a second structure can be obtained, that is, the second structure includes multiple first structures and the wire 4 wound around two adjacent first structures.

[0061] S5. Form a sheath layer outside the second structure to obtain a parallel wire structure.

[0062] After obtaining the second structure, a sheath layer 5 can be formed outside the second structure. The sheath layer 5 covers the second structure to protect the wire 4, the outer conductor 3, etc. In some embodiments, a sheath layer 5 can be coated outside the second structure through an extrusion device. It should be noted that the sheath layer 5 can fill the gap between two adjacent outer conductors 3 to prevent the coaxial structure from collapsing.

[0063] In the parallel wire method provided in this embodiment, after forming the outer conductor 3 outside the insulating medium 2 to obtain the first structure, multiple first structures are arranged side by side, and then the wire 4 is intertwined and wound around two adjacent first structures so that the outer conductors 3 of the two adjacent first structures are electrically connected through the wire 4 to obtain the second structure. Finally, a sheath layer 5 is formed outside the second structure, so that the step of post-process welding and parallel wiring is adjusted to the step of pre-process winding and parallel wiring, which is convenient for the parallel wiring of coaxial cables, reduces the workload of parallel wiring, saves time and effort, has high efficiency and low defect rate, and ensures the consistency of the grounding effect and grounding quality after parallel wiring.

[0064] Optionally, in step S4, control the wire 4 to wind around a first preset number of turns outside a first structure and then wind around another first structure adjacent to the first structure, and wind around a second preset number of turns outside the other first structure. Among them, the values of the first preset number of turns and the second preset number of turns can be set according to actual needs. For example, both the first preset number of turns and the second preset number of turns are 3 turns.

[0065] In this embodiment, in order to ensure the fullness of the parallel wire structure, after step S4, the parallel wire method further includes: winding an auxiliary wire 6 around the area where the wire 4 is not wound outside the first structure to obtain a structure as shown in Figure 4 or Figure 5 The wire 4 and the auxiliary wire 6 are arranged alternately and have the same winding direction to avoid mutual interference. In some embodiments, the material of the auxiliary wire 6 can be metal so that two adjacent first structures can also be electrically connected through the auxiliary wire 6. In some embodiments, the material of the auxiliary wire 6 is an insulating material to assist the sheath layer 5 in protecting the outer conductor 3 and insulating the outer conductor 3.

[0066] Optionally, in step S5, after forming the sheath layer 5 outside the second structure, a cut groove 51 is provided on the outer surface of the sheath layer 5 at a portion located between every two adjacent outer conductors 3, and the cut groove 51 extends towards the midpoint of the connection line of two adjacent core wires 11. The cut groove 51 is used to mark the coaxial cable parallel connection structure, so that the boundary between two adjacent first structures can be determined according to the position of the cut groove 51, and the number of core wires 11 in the parallel connection structure can be determined according to the number of cut grooves 51. In some embodiments, the cut groove 51 is an arc-shaped groove, a tapered groove, a square groove, etc., and the present embodiment does not limit this.

[0067] Embodiment 2

[0068] This embodiment provides a parallel connection structure, which is made by the above parallel connection method. As Figures 2 to 6 shown, the parallel connection structure includes an inner conductor 1, an insulating medium 2, an outer conductor 3, a wire 4 and a sheath layer 5.

[0069] Among them, the inner conductor 1 includes a plurality of core wires 11 arranged side by side, and the axes of the plurality of core wires 11 are parallel to each other. That is, the plurality of core wires 11 arranged in parallel form the inner conductor 1. A plurality of insulating media 2 are provided, and the plurality of insulating media 2 correspond to the plurality of core wires 11 one by one, and each insulating medium 2 is coated outside its corresponding core wire 11. A plurality of outer conductors 3 are provided, and the plurality of outer conductors 3 correspond to the plurality of insulating media 2 one by one, and each outer conductor 3 is disposed outside its corresponding insulating medium 2. The wire 4 is intertwined and wound outside two adjacent outer conductors 3, and the wire 4 is used for electrically connecting the adjacent outer conductors 3, so that the adjacent two outer conductors 3 are grounded in parallel through the wire 4. The above-mentioned sheath layer 5 covers the outer conductor 3 and / or the wire 4, and a flame retardant and an anti-aging agent are added to the sheath layer 5. Optionally, the flame retardant in this embodiment is a non-halogen flame retardant, and the non-halogen flame retardant can effectively inhibit the generation of combustible gases, thereby achieving the purpose of preventing the spread of combustion.

[0070] In the parallel connection structure provided by this embodiment, the wire 4 is intertwined and wound outside the outer conductor 3, so that the adjacent two outer conductors 3 are electrically connected through the wire 4, ensuring that the grounding effect and grounding quality after parallel connection are consistent.

[0071] Optionally, please refer to Figure 3 or Figure 6 , the wire 4 includes a plurality of first core bodies 41, and the plurality of first core bodies 41 are arranged side by side to increase the contact area and conductivity between the wire 4 and the outer conductor 3.

[0072] Furthermore, as Figure 6As shown, the wire merging structure further includes an auxiliary wire 6. The auxiliary wire 6 is wound around the area of the outer conductor 3 where no wire 4 is wound, and the sheath layer 5 can also cover the auxiliary wire 6. In some embodiments, the auxiliary wire 6 includes a plurality of second cores 61. The plurality of second cores 61 can be arranged side by side, and it can be seen from the cross-sectional view of the wire merging structure that the plurality of second cores 61 are arranged in sequence along the circumferential direction of the outer conductor 3. Optionally, as Figure 4 or Figure 5 shown, the auxiliary wire 6 is spirally arranged outside the outer conductor 3, and the spiral direction is the same as that of the wire 4.

[0073] Optionally, in this embodiment, there is one wire 4, and one wire 4 is intertwined and wound from one end of the outer conductor 3 along the axial direction of the wire merging structure to the other end of the outer conductor 3. Or, there are multiple wires 4, and the multiple wires 4 are wound around different positions of the outer conductor 3 at intervals, that is, there are multiple wires 4, the multiple wires 4 are arranged at intervals along the axial direction of the first structure, and each wire 4 is intertwined and wound outside two adjacent first structures to ensure the reliability of the electrical connection between two adjacent first structures.

[0074] In this embodiment, the outer conductor 3 is spirally arranged outside the insulating medium 2, or the outer conductor 3 is braided outside the insulating medium 2.

[0075] Optionally, the inner conductor 1 in this embodiment includes silver-plated soft copper wire or tin-plated soft copper wire, and the outer conductor 3 includes silver-plated soft copper wire or tin-plated soft copper wire.

[0076] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire merging method, characterized in that The method includes the following steps: S1. Form an insulating medium outside each core wire; S2. Form an outer conductor covering the insulating medium outside each of the insulating media, and obtain a plurality of first structures; S3. Arrange the plurality of first structures side by side, and make the axes of the plurality of first structures parallel to each other; S4. Intertwist and wind wires around the outer circumferences of two adjacent first structures, so that the outer conductors of the two adjacent first structures are electrically connected through the wires, and obtain a second structure; S5. Form a sheath layer outside the second structure, and obtain a wire parallel structure; After step S4, the wire parallel method further includes: winding auxiliary wires in the area where the wires are not wound outside the first structure.

2. The merging method according to claim 1, characterized in that, In step S4, control the wire to wind around one first structure for a first preset number of turns and then wind around another first structure, and wind around the other first structure for a second preset number of turns.

3. The merging method according to claim 2, characterized in that, There are multiple wires, and the multiple wires are arranged at intervals along the axial direction of the first structure, and each wire is intertwined and wound around two adjacent first structures, or the multiple wires are intertwined and wound in a staggered manner around two adjacent first structures.

4. The merging method according to claim 1, characterized in that In step S5, after forming the sheath layer outside the second structure, cut grooves are formed on the part of the sheath layer between two adjacent outer conductors.

5. A wire merging structure, characterized in that, It includes: An inner conductor (1), including a plurality of core wires (11) arranged side by side, and the axes of the plurality of core wires (11) are parallel to each other; Insulating media (2), there are multiple insulating media (2), and the multiple insulating media (2) correspond to the multiple core wires (11) one by one, and the insulating media (2) cover the corresponding core wires (11); Outer conductors (3), there are multiple outer conductors (3), and the multiple outer conductors (3) correspond to the multiple insulating media (2) one by one, and the outer conductors (3) are arranged outside the corresponding insulating media (2); Wires (4), intertwined and wound around the outer circumferences of two adjacent outer conductors (3), and the wires (4) are used to electrically connect adjacent outer conductors (3); A sheath layer (5), and the sheath layer (5) covers the outer conductors (3) and / or the wires (4); The wire parallel structure further includes auxiliary wires (6), and the auxiliary wires (6) are wound around the area where the outer conductors (3) are not wound with the wires (4), and the sheath layer (5) covers the auxiliary wires (6).

6. The merging structure according to claim 5, characterized in that, The wire (4) includes a plurality of first cores (41), and the plurality of first cores (41) are arranged side by side.

7. The merging structure according to claim 5, wherein The auxiliary wire (6) includes a plurality of second cores (61), and the plurality of second cores (61) are arranged side by side.

8. The merging structure according to claim 5, characterized in that, The auxiliary wire (6) is spirally arranged outside the outer conductor (3).

9. The merging structure according to claim 5, characterized in that, There is one wire (4), and one wire (4) is intertwined and wound from one end of the outer conductor (3) to the other end of the outer conductor (3), or there are multiple wires (4), and the multiple wires (4) are wound at different positions of the outer conductor (3) at intervals.

10. The merging structure according to any one of claims 5-9, characterized in that, The outer conductor (3) is arranged in a spiral shape on the outer side of the insulating medium (2), or the outer conductor (3) is arranged in a braided shape on the outer side of the insulating medium (2).

11. The merging structure according to any one of claims 5-9, characterized in that, The outer surface of the sheath layer (5) has a cut groove (51) on a part between two adjacent outer conductors (3).

12. The merging structure according to claim 11, wherein The cut groove (51) is an arc-shaped groove or a tapered groove.

Images