Multi-structure composite control line
By designing a multi-structure composite control line, using multi-strand fine copper strands and a combination of specific materials, the problems of complex wiring and safety hazards in traditional cable systems are solved, achieving control lines that are flexible, resistant to bending, low-smoke, halogen-free, flame-retardant, and highly shielded.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional cable systems employ a single-function design, resulting in complex internal wiring, large space requirements, and safety hazards in high-temperature, high-bending-frequency, or enclosed environments.
A multi-structure composite control wire is designed, which uses multiple strands of fine copper stranded together and combines TPE, HDPE and PP materials. It has the characteristics of being flexible, flexible, low-smoke, halogen-free, flame-retardant and environmentally friendly. It is also wrapped with non-woven fabric and an outer sheath to prevent crosstalk between the internal wire cores.
It achieves a simple and flexible control line structure, reduces wiring complexity, saves space, has low smoke, halogen-free, flame-retardant and environmentally friendly characteristics, high shielding efficiency, and avoids crosstalk between internal wire cores.
Smart Images

Figure CN224123134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of control line technology, and in particular to a multi-structure composite control line. Background Technology
[0002] With the rapid development of smart terminals, industrial automation equipment, and IoT technology, the integration and miniaturization of electronic devices have placed higher demands on cables. Traditional cable systems typically employ a single-function design, such as independently routing power lines, data lines (e.g., USB, CAT5E), and control signal lines. This results in complex internal wiring, large space requirements, and high maintenance costs. Furthermore, in high-temperature, high-bending-frequency, or enclosed environments, the material properties and structural defects of traditional cables can easily lead to safety hazards. To address this issue, the inventors designed a multi-structure composite control cable. Utility Model Content
[0003] The purpose of this utility model is to provide a multi-structure composite control wire with a simple structure and reasonable design. It uses multiple strands of fine copper strands, which makes it flexible and resistant to bending. The TPE, HDPE and PP materials used have low smoke and halogen-free properties, which makes the wire itself have low smoke, halogen-free, flame-retardant, environmentally friendly and safe characteristics, thus solving the problems mentioned in the above technical background.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model is a multi-structure composite control line, comprising:
[0006] First control line, second control line, third control line, fourth control line, fifth control line, sixth control line, filling cotton thread, non-woven fabric and outer cover;
[0007] The first control line, the second control line, the third control line, the fourth control line, the fifth control line, the sixth control line and the filling cotton thread are twisted together. The non-woven fabric is wrapped around the outside of the first control line, the second control line, the third control line, the fourth control line, the fifth control line, the sixth control line and the filling cotton thread, and the outer sheath is wrapped around the outside of the non-woven fabric.
[0008] Furthermore, the first control line includes a first conductor, a first insulating layer, a first filler, a first wrapping tape, and a first inner sheath; the first conductor is made of tin-plated copper, and any one set of the first insulating layer contains two sets of tin-plated copper. The first insulating layer is made of PP material, the first filler is cotton thread located in the middle of the first insulating layer, the first wrapping tape is made of cotton paper wrapped around the outside of the first insulating layer, and the first inner sheath is wrapped around the outside of the first wrapping tape, and the first inner sheath is made of TPE.
[0009] Furthermore, the second control line includes a second conductor, a second insulating layer, an aluminum foil, a first braided tape, a second wrapping tape, and a second inner sheath; the second conductor is made of tin-plated copper, and any one set of the second insulating layer contains two sets of tin-plated copper. The second insulating layer is made of HDPE material, and the aluminum foil is wrapped around the outside of the second insulating layer with the aluminum side facing outwards. The first braided tape is placed outside the aluminum foil, and the second wrapping tape is wrapped around the outside of the aluminum foil. The material of the second wrapping tape is cotton paper, and the second inner sheath is placed outside the second wrapping tape. The second inner sheath is made of TPE material.
[0010] Furthermore, the third control line includes a third conductor, a third insulation layer, a second filler, a second braided tape, a third wrapping tape, and a third inner quilt; the third conductor is made of bare copper, the third insulation layer is wrapped around the bare copper and is made of HDPE, the second filler is cotton thread, the cotton thread is twisted and connected to the third insulation layer, the second braided tape is wrapped around the third insulation layer and the second filler, the third wrapping tape is wrapped around the second braided tape and is made of cotton paper, and the third inner quilt is wrapped around the third wrapping tape and is made of TPE.
[0011] Furthermore, the fourth control line includes a fourth conductor, a fourth insulating layer, a fourth filler, a fourth wrapping tape, and a fourth inner lining; the fourth conductor, the fourth insulating layer, the fourth filler, the fourth wrapping tape, and the fourth inner lining are sequentially wrapped around its exterior from the inside out. The fourth conductor is made of tin-plated copper, the fourth insulating layer is made of PP material, the fourth filler is cotton thread, the cotton thread is distributed in the middle of the fourth insulating layer, the fourth wrapping tape is cotton paper, and the fourth inner lining is made of TPE material.
[0012] Furthermore, the fifth control line includes a fifth conductor, a fifth insulating layer, a fifth filler, a fifth wrapping tape, and a fifth inner sheath; the fifth conductor is made of tin-plated copper, the fifth insulating layer is wrapped around the outside of the fifth conductor, the fifth insulating layer is made of TPE, the fifth filler is cotton thread distributed on both sides of the fifth insulating layer, the fifth wrapping tape is wrapped around the outside of the fifth insulating layer and the fifth filler, and the fifth inner sheath is wrapped around the outside of the fifth wrapping tape, the fifth inner sheath is made of TPE.
[0013] Furthermore, the sixth control line includes a sixth conductor and a sixth insulating layer; the sixth insulating layer wraps around the sixth conductor, the sixth conductor is made of bare copper, and the sixth insulating layer is made of PP.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] I. This utility model provides a multi-structure composite control line, which includes a first control line, a second control line, a third control line, a fourth control line, a fifth control line, a sixth control line, filling cotton thread, non-woven fabric, and an outer sheath. The overall structure of the control line is simple and reasonably designed. The control line uses multi-strand fine copper strands, which makes it flexible and resistant to bending. Furthermore, it integrates power supply (such as the fifth control line), high-speed data (the second control line supports CAT5E), USB signal (the first control line), and multiple control signals (the third and fourth control lines) through the six control lines, replacing the traditional multi-line parallel solution, reducing wiring complexity, saving equipment space, and making it highly practical.
[0016] Second, the PE, HDPE and PP used in this utility model are all halogen-free, which makes the control line have the characteristics of low smoke, halogen-free flame retardant, environmental protection and safety. The aluminum foil can reflect high frequency interference, and the braided tape absorbs low frequency interference, so that the shielding effectiveness is ≥90dB. The non-woven fabric is used to avoid crosstalk between internal wire cores. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a structural diagram of the first control line of this utility model;
[0020] Figure 3 This is a structural diagram of the second control line of this utility model;
[0021] Figure 4 This is a structural diagram of the third control line of this utility model;
[0022] Figure 5 This is a structural diagram of the fourth control line of this utility model;
[0023] Figure 6 This is a structural diagram of the fifth control line of this utility model;
[0024] Figure 7 This is a structural diagram of the sixth control line of this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. First control line; 11. First conductor; 12. First insulating layer; 13. First filler; 14. First wrapping tape; 15. First inner jacket;
[0027] 2. Second control line; 21. Second conductor; 22. Second insulation layer; 23. Aluminum foil; 24. First braided tape; 25. Second wrapping tape; 26. Second inner lining;
[0028] 3. Third control line; 31. Third conductor; 32. Third insulation layer; 33. Second filler; 34. Second braided tape; 35. Third wrapping tape; 36. Third inner lining;
[0029] 4. Fourth control line; 41. Fourth conductor; 42. Fourth insulation layer; 43. Fourth filler; 44. Fourth wrapping tape; 45. Fourth inner jacket;
[0030] 5. Fifth control line; 51. Fifth conductor; 52. Fifth insulation layer; 53. Fifth filler; 54. Fifth wrapping tape; 55. Fifth inner lining;
[0031] 6. Sixth control line; 61. Sixth conductor; 62. Sixth insulation layer
[0032] 7. Filling cotton thread; 8. Non-woven fabric; 9. Outer quilt. Detailed Implementation
[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0036] Please see Figures 1-7 As shown, this embodiment is a multi-structure composite control line, including:
[0037] First control line 1, second control line 2, third control line 3, fourth control line 4, fifth control line 5, sixth control line 6, filling cotton thread 7, non-woven fabric 8, and outer quilt 9;
[0038] The first control line 1, the second control line 2, the third control line 3, the fourth control line 4, the fifth control line 5, the sixth control line 6 and the filling cotton thread 7 are twisted together. The non-woven fabric 8 is wrapped around the outside of the first control line 1, the second control line 2, the third control line 3, the fourth control line 4, the fifth control line 5, the sixth control line 6 and the filling cotton thread 7. The outer sheath 9 is wrapped around the outside of the non-woven fabric 8.
[0039] The first control line 1 includes a first conductor 11, a first insulating layer 12, a first filler 13, a first wrapping tape 14, and a first inner sheath 15. The first conductor 11 is made of tin-plated copper. Each set of the first insulating layer 12 contains two sets of tin-plated copper. The first insulating layer 12 is made of PP material. The first filler 13 is cotton thread, which is located in the middle of the first insulating layer 12. The first wrapping tape 14 is made of cotton paper, which is wrapped around the outside of the first insulating layer 12. The first inner sheath 15 is wrapped around the outside of the first wrapping tape 14, and the first inner sheath 15 is made of TPE.
[0040] The first conductor 11 is tin-plated to improve the oxidation resistance and welding reliability of the control line, making it suitable for high-frequency signal transmission. The first insulation layer 12 is made of polypropylene (PP), which has the advantages of high temperature resistance and chemical corrosion resistance, thus ensuring the stability of the insulation of the control line. The first filler 13 fills the gap between the wire cores, buffers mechanical stress, and enhances the flexibility of the cable. The first wrapping tape 14 provides preliminary shielding and structural fixation to prevent the insulation layer from wearing. The first intermediate sheath 15 is made of TPE material, which has environmentally friendly and flame-retardant properties, and serves as an intermediate sheath to improve the tensile strength of the control line.
[0041] The second control line 2 includes a second conductor 21, a second insulating layer 22, an aluminum foil 23, a first braided tape 24, a second wrapping tape 25, and a second inner lining 26. The second conductor 21 is made of tin-plated copper. Each set of the second insulating layer 22 contains two sets of tin-plated copper. The second insulating layer 22 is made of HDPE. The aluminum foil 23 is wrapped around the outside of the second insulating layer 22 with the aluminum side facing outward. The first braided tape 24 is placed outside the aluminum foil 23. The second wrapping tape 25 is wrapped around the outside of the aluminum foil 23 and is made of cotton paper. The second inner lining 26 is placed outside the second wrapping tape 25 and is made of TPE.
[0042] The second conductor 21 combines conductivity and corrosion resistance, making it suitable for medium- and high-speed data communication. The second insulation layer 22 uses high-density polyethylene (HDPE) with high mechanical strength, which can reduce signal attenuation. The aluminum foil 23 can reflect electromagnetic interference. The first braided tape 24, as the internal conductor, can provide 360° shielding and significantly improve EMI resistance.
[0043] The third control line 3 includes a third conductor 31, a third insulation layer 32, a second filler 33, a second braided tape 34, a third wrapping tape 35, and a third inner lining 36. The third conductor 31 is made of bare copper. The third insulation layer 32 is wrapped around the bare copper and is made of HDPE. The second filler 33 is cotton thread, which is twisted together with the third insulation layer 32. The second braided tape 34 is wrapped around the third insulation layer 32 and the second filler 33. The third wrapping tape 35 is wrapped around the second braided tape 34 and is made of cotton paper. The third inner lining 36 is wrapped around the third wrapping tape 35 and is made of TPE.
[0044] The third conductor 31 is low in cost and suitable for low-frequency control signal transmission. The second braided tape 34 strengthens electromagnetic shielding and prevents external interference from intruding. The cotton thread is twisted and filled with the third insulation layer 32 to balance the roundness of the cable and avoid deformation.
[0045] The fourth control line 4 includes a fourth conductor 41, a fourth insulating layer 42, a fourth filler 43, a fourth wrapping tape 44, and a fourth inner sheath 45. The fourth conductor 41, the fourth insulating layer 42, the fourth filler 43, the fourth wrapping tape 44, and the fourth inner sheath 45 are wrapped around the outside of the line from the inside out. The fourth conductor 41 is made of tin-plated copper, the fourth insulating layer 42 is made of PP material, the fourth filler 43 is made of cotton thread, the cotton thread is distributed in the middle of the fourth insulating layer 42, the fourth wrapping tape 44 is made of cotton paper, and the fourth inner sheath 45 is made of TPE material.
[0046] The fifth control line 5 includes a fifth conductor 51, a fifth insulation layer 52, a fifth filler 53, a fifth wrapping tape 54, and a fifth inner sheath 55; the fifth conductor 51 is made of tin-plated copper, the fifth insulation layer 52 is wrapped around the fifth conductor 51, the fifth insulation layer 52 is made of TPE, the fifth filler 53 is cotton thread, the cotton thread is distributed on both sides of the fifth insulation layer 52, the fifth wrapping tape 54 is wrapped around the fifth insulation layer 52 and the fifth filler 53, and the fifth inner sheath 55 is wrapped around the fifth wrapping tape 54, the fifth inner sheath 55 is made of TPE;
[0047] The fourth conductor 41 and the fifth conductor 51 are used to stably transmit power or medium power signals. The fourth insulation layer 42 and the fifth insulation layer 52 are made of PP material which is resistant to high temperature and TPE material which has excellent flexibility, respectively adapting to different scenario requirements. The cotton thread is used to disperse the stress between the conductors and reduce the damage to the insulation layer caused by friction.
[0048] The sixth control line 6 includes a sixth conductor 61 and a sixth insulating layer 62; the sixth insulating layer 62 wraps around the sixth conductor 61, the sixth conductor 61 is made of bare copper, and the sixth insulating layer 62 is made of PP.
[0049] The sixth conductor 61 is an economical design for short-distance auxiliary signal transmission, while the sixth insulation layer 62 is a low-cost insulation solution that meets basic protection requirements.
[0050] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-structure composite control line, characterized in that, include: First control line (1), second control line (2), third control line (3), fourth control line (4), fifth control line (5), sixth control line (6), filling cotton thread (7), non-woven fabric (8) and outer cover (9); The first control line (1), the second control line (2), the third control line (3), the fourth control line (4), the fifth control line (5), the sixth control line (6) and the filling cotton thread (7) are twisted together. The non-woven fabric (8) is wrapped around the outside of the first control line (1), the second control line (2), the third control line (3), the fourth control line (4), the fifth control line (5), the sixth control line (6) and the filling cotton thread (7). The outer cover (9) is wrapped around the outside of the non-woven fabric (8).
2. The multi-structure composite control line according to claim 1, characterized in that, The first control line (1) includes a first conductor (11), a first insulation layer (12), a first filler (13), a first wrapping tape (14), and a first inner lining (15). The first conductor (11) is made of tin-plated copper. Two sets of tin-plated copper are provided inside any one set of the first insulation layer (12). The first insulation layer (12) is made of PP material. The first filler (13) is made of cotton thread, which is located in the middle of the first insulation layer (12). The first wrapping tape (14) is made of cotton paper, which is wrapped around the outside of the first insulation layer (12). The first inner lining (15) is wrapped around the outside of the first wrapping tape (14), and the material of the first inner lining (15) is TPE.
3. The multi-structure composite control line according to claim 1, characterized in that, The second control line (2) includes a second conductor (21), a second insulating layer (22), an aluminum foil (23), a first braided tape (24), a second wrapping tape (25), and a second inner lining (26); the second conductor (21) is made of tin-plated copper, and two sets of tin-plated copper are provided inside any one set of the second insulating layer (22). The second insulating layer (22) is made of HDPE. The aluminum foil (23) is wrapped around the outside of the second insulating layer (22), and the aluminum side of the aluminum foil (23) faces outward. The first braided tape (24) is placed outside the aluminum foil (23). The second wrapping tape (25) is wrapped around the outside of the aluminum foil (23). The material of the second wrapping tape (25) is cotton paper. The second inner lining (26) is placed outside the second wrapping tape (25), and the second inner lining (26) is made of TPE.
4. The multi-structure composite control line according to claim 1, characterized in that, The third control line (3) includes a third conductor (31), a third insulation layer (32), a second filler (33), a second braided tape (34), a third wrapping tape (35), and a third inner quilt (36). The third conductor (31) is made of bare copper. The third insulation layer (32) is wrapped around the bare copper. The third insulation layer (32) is made of HDPE. The second filler (33) is made of cotton thread. The cotton thread is twisted and connected to the third insulation layer (32). The second braided tape (34) is wrapped around the third insulation layer (32) and the second filler (33). The third wrapping tape (35) is wrapped around the second braided tape (34). The third wrapping tape (35) is made of cotton paper. The third inner quilt (36) is wrapped around the third wrapping tape (35). The material of the third inner quilt (36) is TPE.
5. A multi-structure composite control line according to claim 1, characterized in that, The fourth control line (4) includes a fourth conductor (41), a fourth insulating layer (42), a fourth filler (43), a fourth wrapping tape (44), and a fourth inner lining (45). The fourth conductor (41), the fourth insulating layer (42), the fourth filler (43), the fourth wrapping tape (44), and the fourth inner lining (45) are wrapped around the outside of the fourth conductor (41) from the inside out. The fourth conductor (41) is made of tin-plated copper, the fourth insulating layer (42) is made of PP material, the fourth filler (43) is made of cotton thread, the cotton thread is distributed in the middle of the fourth insulating layer (42), the fourth wrapping tape (44) is made of cotton paper, and the fourth inner lining (45) is made of TPE material.
6. The multi-structure composite control line according to claim 1, characterized in that, The fifth control line (5) includes a fifth conductor (51), a fifth insulating layer (52), a fifth filler (53), a fifth wrapping tape (54), and a fifth inner liner (55). The fifth conductor (51) is made of tin-plated copper. The fifth insulating layer (52) is wrapped around the outside of the fifth conductor (51). The material of the fifth insulating layer (52) is TPE. The fifth filler (53) is cotton thread, which is distributed on both sides of the fifth insulating layer (52). The fifth wrapping tape (54) is wrapped around the outside of the fifth insulating layer (52) and the fifth filler (53). The fifth inner liner (55) is wrapped around the outside of the fifth wrapping tape (54). The material of the fifth inner liner (55) is TPE.
7. A multi-structure composite control line according to claim 1, characterized in that, The sixth control line (6) includes a sixth conductor (61) and a sixth insulating layer (62); the sixth insulating layer (62) is wrapped around the sixth conductor (61), the sixth conductor (61) is made of bare copper, and the sixth insulating layer (62) is made of PP.