High-flexibility multi-core composite control cable

Abstract

The utility model discloses a high-flexibility multi-core composite control cable, which comprises a central line group and a plurality of composite line groups uniformly arranged on the peripheral side of the central line group, and the central line group comprises a main wire harness and a fourth coil group wound on the peripheral side of the main wire harness. The main wire harness comprises a first coil assembly, a second coil assembly wound on the first coil assembly and a third coil assembly wound on the peripheral side of the second coil assembly, the main wire harness comprises a first PP coating layer used for coating the first coil assembly, the second coil assembly and the third coil assembly, and the fourth coil assembly is wound on the outer side of the first PP coating layer; the center line group further comprises a first PET coating layer and a polyester film layer which sequentially coat the outer side of the fourth coil group from inside to outside. According to the utility model, the flexibility of the cable is improved, the deformation effect of the cable is improved, the cable arrangement requirement of equipment on the cable is adapted, and meanwhile, the PET coating layer and the PP coating layer are arranged and have excellent heat preservation and flame retardance, so that the low-temperature-resistant toughness and high flame retardance of the cable are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a high-flexibility multi-core composite control cable. Background Technique

[0002] The material of the tinned copper wire is made by electrochemically treating a copper core wire with spinel tin plating, and a uniform tin coating covers the surface. Compared with pure copper wire, the tinned copper wire has the following advantages: First, corrosion resistance. Since tin has good corrosion resistance, the tin coating can prevent the copper core wire from being easily oxidized and deteriorating in quality. Therefore, in most application scenarios, tinned copper wire is more commonly used. When using pure copper wire, it should be noted that the surface of copper is easily oxidized and loses conductivity, and it is necessary to pay attention to preventing contact with air or coating a protective material; Second, processing performance. There are also differences in the processing of pure copper wire and tinned copper wire. After the copper core wire is electrochemically treated with spinel tin plating, the tin layer has strong adhesion and is not easy to peel off; while pure copper wire has no coating, so after a large number of bending times, the copper core wire may become fatigued and is easy to break.

[0003] In the existing applications of electronic devices, especially for internal wiring or external interconnection of electronic devices (such as desktop calculators, dictating machines or X-ray devices), the wire harness needs to have the characteristics of high flexibility, low-temperature toughness resistance, high flame retardancy, relatively high mechanical strength and easy wiring. Therefore, a high-flexibility multi-core composite control cable is developed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-flexibility multi-core composite control cable, which solves the problems in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-flexibility multi-core composite control cable, including a center wire group and a plurality of composite wire groups uniformly arranged on the periphery of the center wire group. The center wire group includes a main wire bundle and a fourth coil group wound around the periphery of the main wire bundle. The main wire bundle includes a first coil group, a second coil group wound around the first coil, and a third coil group wound around the periphery of the second coil group. The main wire bundle includes a PP coating layer one for coating the first coil group, the second coil group and the third coil group. The fourth coil group is wound around the outside of the PP coating layer one. The center wire group further includes a PET coating layer one and a polyester film layer sequentially coated on the outside of the fourth coil group from the inside to the outside.

[0006] Preferably, the first coil group includes a plurality of first tinned copper wires. One of the first tinned copper wires serves as an axis to form a center wire, and the remaining plurality of first tinned copper wires are uniformly arranged on the periphery of the center wire. The first coil group further includes a PP coating layer two for coating the plurality of first tinned copper wires.

[0007] Preferably, the second coil group includes a plurality of second tinned copper wires and a first PP rope. The plurality of second tinned copper wires and the first PP rope are evenly arranged on the periphery of the first coil group, and the quantity ratio of the first PP rope to the second tinned copper wires is 1:11.

[0008] Preferably, the third coil group includes a plurality of third tinned copper wires and a plurality of second PP ropes. The plurality of third tinned copper wires and the plurality of second PP ropes are evenly arranged on the periphery of the second coil group, and the quantity ratio of the second PP ropes to the third tinned copper wires is 1:6.

[0009] Preferably, the fourth coil group includes a plurality of fourth tinned copper wires and a plurality of third PP ropes. The plurality of fourth tinned copper wires and the plurality of third PP ropes are evenly arranged on the periphery of the first PP coating layer. The fourth coil group is further provided with a water passage located between the first PET coating layer and the first PP coating layer. The quantity ratio of the third PP ropes to the fourth tinned copper wires is 1:8.

[0010] Preferably, the composite wire group includes a third PP coating layer and a plurality of fourth PP ropes, a plurality of fifth tinned copper wires and a plurality of sixth tinned copper wires coated inside the third PP coating layer. The quantity ratio of the plurality of fourth PP ropes, the plurality of fifth tinned copper wires and the plurality of sixth tinned copper wires is 1:1:4.

[0011] Preferably, the diameter of the fifth tinned copper wire is larger than that of the sixth tinned copper wire, and the diameter difference between the fifth tinned copper wire and the sixth tinned copper wire is 0.02 mm.

[0012] Preferably, it further includes a fourth PP coating layer covering the center line group and a plurality of composite wire groups, and the quantity ratio of the center line group to the plurality of composite wire groups is 1:10. The outside of the fourth PP coating layer is sequentially coated with a second PET coating layer and a PVC coating layer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By setting the center line group and a plurality of composite wire groups, and through the structural scheme of the first coil group, the second coil group and the third coil group for the center line group, the cable forms a wire group arranged in a multi - circle circumferential integral column. This structure can make the overall cable flexible, improve its deformation effect, and adapt to the cable routing requirements of the equipment. At the same time, by setting the PET coating layer and the PP coating layer, both have excellent heat preservation and flame retardancy, improving the low - temperature toughness and high flame retardancy of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2Schematic diagram of the structure of the center line group of the present utility model;

[0017] Figure 3 Schematic diagram of the structure of the first coil group of the present utility model;

[0018] Figure 4 Schematic diagram of the structure of the fourth coil group of the present utility model;

[0019] Figure 5 Schematic diagram of the structure of the composite wire group of the present utility model. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] Please refer to Figures 1 to 5 , an embodiment provided by the present utility model: a highly flexible multi-core composite control cable, including a center line group 10 and a plurality of composite wire groups 20 uniformly arranged on the periphery of the center line group 10. The center line group 10 includes a main wire bundle 15 and a fourth coil group 14 wound around the periphery of the main wire bundle 15. The main wire bundle 15 includes a first coil group 11, a second coil group 12 wound around the first coil 11, and a third coil group 13 wound around the periphery of the second coil group 12. The above structural solution makes the cable form a wire group arranged in a multi-turn circular array. This structure can make the overall cable flexible, improve its deformation effect, and adapt to the cable routing requirements of the device. The main wire bundle 15 includes a PP coating layer one 16 for covering the first coil group 11, the second coil group 12, and the third coil group 13. The fourth coil group 14 is wound outside the PP coating layer one 16. The center line group 10 further includes a PET coating layer one 17 and a polyester film layer 18 sequentially coated outside the fourth coil group 14 from the inside out.

[0023] It also includes a PP coating layer four 19 that wraps the center line group 10 and multiple composite line groups 20, and the quantity ratio of the center line group to the multiple composite line groups is 1:10. A PET coating layer two 21 and a PVC coating layer 22 are sequentially coated on the outer side of the PP coating layer four 19.

[0024] Furthermore, by providing the PP coating layer one 16, the PP coating layer two 7, the PP coating layer three 9, the PP coating layer four 19, the PET coating layer one 17, the PET coating layer two 21, and the PVC coating layer, the multi-layer materials simultaneously possess excellent heat preservation and flame retardancy, further improving the low-temperature toughness and high flame retardancy of the cable.

[0025] The first coil group 11 includes multiple first tinned copper wires 1. One of the first tinned copper wires 1 serves as the axis to form a center wire, and the remaining multiple first tinned copper wires 1 are evenly arranged on the periphery of the center wire. The first coil group 11 also includes a PP coating layer two 7 that wraps the multiple first tinned copper wires 1. The above structure forms a circumferential array arrangement, further increasing the flexibility of the cable. In this embodiment, seven first tinned copper wires 1 are provided, with one of the first tinned copper wires 1 serving as the axis, and the remaining six first tinned copper wires 1 are arranged on the periphery of the center wire.

[0026] The second coil group 12 includes multiple second tinned copper wires 2 and a PP rope one 31. The multiple second tinned copper wires 2 and the PP rope one 31 are evenly arranged on the periphery of the first coil group 11, and the quantity ratio of the PP rope one 31 to the second tinned copper wires 2 is 1:11. The PP rope one 31 can further improve the elasticity and toughness of the cable. In this embodiment, eleven second tinned copper wires 2 and a PP rope one 31 are provided.

[0027] The third coil group 13 includes multiple third tinned copper wires 3 and multiple PP ropes two 32. The multiple third tinned copper wires 3 and the multiple PP ropes two 32 are evenly arranged on the periphery of the second coil group 12, and the quantity ratio of the PP ropes two 32 to the third tinned copper wires 3 is 1:6. In this embodiment, eighteen third tinned copper wires 3 and three PP ropes two 32 are provided.

[0028] The fourth coil group 14 includes multiple fourth tinned copper wires 4 and multiple PP ropes three 33. The multiple fourth tinned copper wires 4 and the multiple PP ropes three 33 are evenly arranged on the periphery of the PP coating layer one 17. The fourth coil group 14 is also provided with a water passage 8. The water passage 8 is located between the PET coating layer one 17 and the PP coating layer one 16. The water passage 8 can pass coolant to achieve the effect of reducing the cable temperature and improving the cable conductivity. The quantity ratio of the PP ropes three 33 to the fourth tinned copper wires 4 is 1:8. In this embodiment, twenty-four fourth tinned copper wires 4 and three PP ropes three 33 are provided.

[0029] The composite wire group 20 includes a third PP coating layer 9 and a plurality of fourth PP ropes 34, a plurality of fifth tinned copper wires 5, and a plurality of sixth tinned copper wires 6 coated inside the third PP coating layer 9. The quantity ratio of the plurality of fourth PP ropes 34, the plurality of fifth tinned copper wires 5, and the plurality of sixth tinned copper wires 6 is 1:1:4. In this embodiment, two fifth tinned copper wires 5, two fourth PP ropes 34, and eight sixth tinned copper wires are provided.

[0030] The diameter of the fifth tinned copper wire 5 is larger than that of the sixth tinned copper wire 6, and the diameter difference between the fifth tinned copper wire 5 and the sixth tinned copper wire 6 is 0.02 mm.

[0031] In this embodiment, the diameter parameters of the first tinned copper wire 1, the second tinned copper wire 2, the third tinned copper wire 3, the fourth tinned copper wire 4, and the sixth tinned copper wire 6 are the same, with a maximum diameter of 0.23 mm and a minimum diameter of 0.18 mm. The diameter parameters of the fifth tinned copper wire 5 are: a maximum diameter of 0.25 mm and a minimum diameter of 0.20 mm.

[0032] Furthermore, a layer of PVC insulation layer is coated on the outer sides of the first tinned copper wire 1, the second tinned copper wire 2, the third tinned copper wire 3, the fourth tinned copper wire 4, the fifth tinned copper wire 5, and the sixth tinned copper wire 6, which prevents the mutual influence between the tinned copper wires, improves the smoothness between the tinned copper wires, and further enhances the flexibility.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A highly flexible multi-core composite control cable, characterized in that: The invention comprises a central wire group and a plurality of composite wire groups uniformly arranged around the central wire group, wherein the central wire group comprises a main wire bundle and a fourth coil group arranged around the main wire bundle, wherein the main wire bundle comprises a first coil group, a second coil group arranged around the first coil, and a third coil group arranged around the second coil group, wherein the main wire bundle comprises a PP coating layer 1 for covering the first coil group, the second coil group and the third coil group, wherein the fourth coil group is arranged outside the PP coating layer 1, and wherein the central wire group further comprises a PET coating layer 1 and a polyester film layer sequentially coated on the outside of the fourth coil group from the inside to the outside.

2. A highly flexible multi-core composite control cable according to claim 1, characterized in that: The first coil group includes multiple first tinned copper wires, one of which serves as an axis to form a central wire, and the remaining multiple first tinned copper wires are evenly arranged on the circumference of the central wire. The first coil group also includes a PP coating layer 2 that covers the multiple first tinned copper wires.

3. The highly flexible multi-core composite control cable according to claim 1, characterized in that: The second coil group includes a plurality of second tinned copper wires and a PP rope 1, the plurality of second tinned copper wires and the PP rope 1 are evenly arranged around the first coil group, and the ratio of the number of the PP rope 1 to the second tinned copper wires is 1:

11.

4. The highly flexible multi-core composite control cable according to claim 1, characterized in that: The third coil group includes multiple third tinned copper wires and multiple PP ropes 2, which are evenly arranged on the circumference of the second coil group, and the ratio of the number of PP ropes 2 to the third tinned copper wires is 1:

6.

5. The highly flexible multi-core composite control cable according to claim 1, characterized in that: The fourth coil group includes multiple fourth tinned copper wires and multiple PP ropes three, and the multiple fourth tinned copper wires and multiple PP ropes three are evenly arranged on the circumferential side of the PP coating layer one. The fourth coil group is also provided with a water passage, and the water passage is located between the PET coating layer one and the PP coating layer one. The ratio of the number of PP ropes three to the fourth tinned copper wires is 1:

8.

6. The highly flexible multi-core composite control cable according to claim 1, characterized in that: The composite wire group includes a PP coating layer three and multiple PP ropes four, multiple fifth tinned copper wires and multiple sixth tinned copper wires coated in the PP coating layer three, and the number ratio of the multiple PP ropes four, the multiple fifth tinned copper wires and the multiple sixth tinned copper wires is 1:1:

4.

7. The highly flexible multi-core composite control cable according to claim 6, characterized in that: The diameter of the fifth tinned copper wire is greater than the diameter of the sixth tinned copper wire, and the diameter difference between the fifth tinned copper wire and the sixth tinned copper wire is 0.02 mm.

8. The highly flexible multi-core composite control cable according to claim 1, characterized in that: It also includes a PP coating layer four that covers a central wire group and multiple composite wire groups, and the ratio of the central wire group to the multiple composite wire groups is 1:

10. The outer side of the PP coating layer four is sequentially coated with a PET coating layer two and a PVC coating layer.

Images