A multi-group flexible anti-bending heavy truck high-power charging robot cable wire

Abstract

This utility model discloses a multi-set flexible, bend-resistant cable for high-power charging robots used in heavy-duty trucks, comprising: a cable structure, wherein the cable structure includes a power line, a signal line arranged sequentially outside the power line, aluminum foil, braiding, paper tape, and an outer sheath; wherein, the power line includes a conductor I, insulation, braiding I, inner sheath I, braiding II, and inner sheath II arranged sequentially outside the conductor I; and six signal lines are arranged in a ring. This utility model optimizes the cable structure, changing the power line from a twisted-pair structure to a coaxial structure. The coaxial multi-layer inner sheath structure restricts the displacement problem caused by bending of the internal power line, avoiding the twisting and arching problems of the twisted-pair structure. During cabling, filler needs to be added at appropriate positions to ensure the roundness of the semi-finished product.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a multi-group flexible, bend-resistant cable for high-power charging robots for heavy-duty trucks. Background Technology

[0002] The maximum power of the heavy-duty truck automatic charging robot cable is 1200kW. The product is composed of multi-core integrated wires for heavy-duty truck charging robots. In actual use, the traditional power line of this type of cable is a set of large-size twisted wires. Due to gaps in the twisted structure and instability in the structure, the overall wire is not round, often bends, twists, and bulges, causing the surrounding signal lines to be squeezed and broken, and the overall shape to bulge. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-group flexible and bend-resistant cable for high-power charging robots for heavy trucks. The cable structure is optimized, and the power line is changed from a twisted pair structure to a coaxial line structure. The multi-layer coaxial inner sheath structure restricts the displacement problem caused by bending of the internal power line, avoiding the twisting and arching problems of the twisted pair structure. When the cable is made, filler needs to be added at appropriate positions to ensure the roundness of the semi-finished product.

[0004] To solve the above-mentioned technical problems, according to one aspect of this utility model, the present utility model provides the following technical solution: a multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks, comprising:

[0005] A cable structure, comprising a power line, a signal line arranged sequentially outside the power line, aluminum foil, braid, paper tape, and an outer sheath;

[0006] The power line includes a conductor I, insulation, braid I, inner sheath I, braid II and inner sheath II arranged sequentially on the outside of the conductor I;

[0007] The signal lines are arranged in a ring, consisting of six lines.

[0008] As a preferred embodiment of the multi-group flexible bending-resistant heavy-duty truck high-power charging robot cable of the present invention, wherein the conductor I is the positive pole, the braid I is the negative pole, and the conductor I and the braid I are protected by insulation.

[0009] The insulation material is specifically silicone rubber, which has a temperature resistance range of -100℃ to 250℃.

[0010] As a preferred embodiment of the multi-group flexible and bend-resistant heavy-duty truck high-power charging robot cable of the present invention, the inner sheath I is specifically made of ethylene propylene rubber, the braiding is specifically a cross-arrangement structure of fine copper wire and copper foil wire, and the inner sheath II is specifically a flexible PVC layer.

[0011] As a preferred embodiment of the multi-group flexible and bend-resistant high-power charging robot cable for heavy trucks described in this utility model, the conductor I is made of Category 6 stranded fine copper wire, and an anti-bullet wire is added in the middle of the conductor I, and the defective positions inside the cable structure are filled.

[0012] As a preferred embodiment of the multi-group flexible and bend-resistant heavy-duty truck high-power charging robot cable of this utility model, the signal line includes a conductor, and the conductor of the signal line has the same structure as the conductor I of the power line.

[0013] As a preferred embodiment of the multi-group flexible and bend-resistant heavy-duty truck high-power charging robot cable described in this utility model, it also includes a sheath, which covers the outermost layer of the cable structure, and the sheath is specifically a silicone composite layer with a temperature range of -40℃ to 200℃.

[0014] As a preferred embodiment of the multi-group flexible bending-resistant heavy-duty truck high-power charging robot cable of the present invention, it further includes a combined structure, wherein the combined structure includes a first arc-shaped groove opened on the inner side of the sheath, a second arc-shaped groove opened on the outer side of the outer sheath, and a soft steel wire inserted into the first arc-shaped groove and the second arc-shaped groove.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] 1) Conductor: The conductor is a Category 6+ stranded fine copper wire conductor with an added spring-resistant wire in the middle. The conductor is flexible while increasing tensile strength, ensuring that it will not break under stress during movement;

[0017] 2) Insulation: Silicone rubber insulation is used, possessing extremely high mechanical and electrical properties. It allows for effective insulation with a very thin insulation layer, reducing the finished wire diameter, while simultaneously providing support and protection for moving conductors.

[0018] 3) Power line shielding: Utilizing a cross-arrangement of fine copper wire and copper foil, the fine copper wire ensures transmission performance, while the copper foil ensures mechanical properties. Compared to traditional unshielded twisted-pair power lines, this is more flexible and ensures the overall roundness of the cable. Shielding layer 2 ensures that the power line will not generate electromagnetic interference to surrounding signal lines during operation, affecting the accuracy of signal line control. It also resists interference from strong external electromagnetic fields on the internal current transmission of the power line. If internal conductor damage leads to leakage, the shielding layer can conduct the leakage current to the grounding grid, reducing the risk of electric shock. This also improves the cable's resistance to compression, bending, or stretching, extending its service life.

[0019] 4) Filling: Because the product is a combination of various sizes and structures, filler needs to be added at appropriate positions during cabling to ensure the roundness of the semi-finished product.

[0020] 5) Twisted Pairs: The control signal wire pairs are twisted with a small pitch to improve the product's tensile strength and resistance to electromagnetic signal interference and crosstalk.

[0021] 6) Overall Shielding: Employs a cross-arrangement structure of fine copper wire and copper foil wire. The fine copper wire ensures transmission performance, while the copper foil wire ensures mechanical properties. It resists interference from strong external electromagnetic fields on signal control signals. Paper tape is wrapped around the overall shielding in the same process as the shielding itself, avoiding the difficulties in peeling when the outer material is changed to polyurethane. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0023] Figure 1 This is a structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the power line of this utility model;

[0025] Figure 3 This is a perspective view of the present utility model;

[0026] Figure 4 This is a structural diagram of the combined structure of this utility model.

[0027] In the diagram: 1-Power line; 2-Signal line; 3-Aluminum foil; 4-Braided; 5-Paper tape; 6-Outer sheath; 7-Sheath; 11-Conductor I; 12-Insulation; 13-Braided I; 14-Inner sheath I; 15-Braided II; 16-Inner sheath II; 71-First arc groove; 72-Second arc groove; 73-Soft steel wire. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] 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.

[0032] This utility model provides a multi-set flexible and bend-resistant cable for high-power charging robots for heavy trucks. The cable structure is optimized, and the power line is changed from a twisted wire structure to a coaxial wire structure. The coaxial multi-layer inner sheath structure restricts the displacement problem caused by bending of the internal power line, avoiding the twisting and arching problems of the twisted wire structure. When the cable is made, filler needs to be added at appropriate positions to ensure the roundness of the semi-finished product.

[0033] Figures 1-4 The diagram shown is an overall structural schematic of one embodiment of the multi-group flexible, bend-resistant heavy-duty truck high-power charging robot cable of this utility model. Please refer to [link / reference]. Figures 1-4 The main structure of this embodiment includes: a cable structure.

[0034] The cable structure includes a power line 1, a signal line 2 arranged sequentially outside the power line 1, an aluminum foil 3, a braid 4, a paper tape 5, and an outer sheath 6; wherein, the power line 1 includes a conductor I11, insulation 12, braid I13, inner sheath I14, braid II15, and inner sheath II16 arranged sequentially outside the conductor I11; the signal line 2 has six lines arranged in a ring.

[0035] In practical use, conductor I11 has a copper conductor + bulletproof wire structure. The conductor of power line 1 uses Category 6 fine copper wire, changing the conventional single-stranded conductor to multiple-stranded conductors, reducing the overall conductor hardness to be as soft as flowing water. The power line 1 changes from a twisted pair structure to a coaxial structure. Conductor I11 is the positive electrode, and braided I13 is the negative electrode. Silicone rubber is used as insulation between conductor I11 and braided I13 to protect conductor I11. Silicone rubber has an extremely wide temperature resistance range of -100℃ to 250℃, ensuring long-term stable use and maintaining elasticity and insulation at high temperatures. 2. It has good flexibility, suitable for dynamic bending scenarios, strong chemical corrosion resistance, oil resistance, and ozone resistance, making it suitable for environments exposed to chemicals or oil. The inner sheath I14 is made of ethylene propylene rubber, with excellent electrical insulation 12, high long-term stability, and high mechanical strength, providing additional protection and reducing the risk of wear. The braid 4 uses a cross-arrangement structure of fine copper wire and copper foil wire. The fine copper wire ensures transmission performance, while the copper foil wire ensures mechanical properties. The inner sheath II16 uses flexible PVC material, ensuring product flexibility and mobility, as well as good wear resistance and mechanical properties. The modified coaxial multi-layer inner sheath structure limits the displacement problem caused by bending of the internal power line 1, avoiding the twisting and arching problems of the twisted wire structure.

[0036] The conductor insulation 12 of signal line 2 is the same as that of power line 1. The assembly cable is made into a single process using a multi-head twisted cable forming machine. The original seven processes of six twisting of signal line 2 + one assembly cable are combined into one process. This ensures that the twisting is de-twisted to eliminate the stress of the twisted wires and achieves the forming of the assembly cable, which greatly saves time. At the same time, filler is added at appropriate positions to ensure that the semi-finished assembly cable is round. The multiple processes of wrapping and braiding 4 are changed to braiding 4 forming in one process. The braiding 4 wrapping forming machine is used to combine multiple processes into one process, which saves time again.

[0037] Furthermore, it also includes a sheath 7, which covers the outermost layer of the cable structure, and the sheath 7 is specifically a silicone composite layer with a temperature range of -40°C to 200°C;

[0038] In practical applications, the sheath 7 is made of silicone composite material, which reduces the stress during movement, improves mobility, and facilitates processing and installation. Its special structure gives it excellent elasticity and low-temperature adaptability, maintaining good flexibility and deformation resistance even in cold environments. Its temperature range of -40℃ to 200℃ is significantly better than most cable materials, making it particularly suitable for low-temperature applications. By adding different composite components, different special properties can be achieved. For example, adding glass fiber ensures the softness of silicone while enhancing mechanical strength; adding carbon fiber improves thermal conductivity and electromagnetic shielding performance. It exhibits good resistance to acids, alkalis, oils, and most chemicals such as weak acids, weak alkalis, and solvents. The surface wear-resistant layer design reduces friction loss and extends service life.

[0039] Furthermore, it also includes a combined structure, which includes a first arc-shaped groove 71 opened on the inner side of the sheath 7, a second arc-shaped groove 72 opened on the outer side of the outer sheath 6, and a soft steel wire 73 inserted into the first arc-shaped groove 71 and the second arc-shaped groove 72.

[0040] In practical use, since the sheath 7 is wrapped around the outside of the outer sheath 6, the soft steel wire 73 is inserted into the first arc-shaped groove 71 and the second arc-shaped groove 72. This increases the contact area between the sheath 7 and the outer sheath 6, improves the tightness of the connection between the sheath 7 and the outer sheath 6, and the embedded structural design of the soft steel wire 73 not only unites the sheath 7 and the outer sheath 6 into a whole, but also improves the overall durability of the cable and prevents bending and breakage.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multi-group flexible, bend-resistant cable for high-power charging robots used in heavy-duty trucks, characterized in that, include: The cable structure includes a power line (1), a signal line (2) arranged sequentially outside the power line (1), an aluminum foil (3), a braid (4), a paper tape (5), and an outer sheath (6); The power line (1) includes a conductor I (11), insulation (12), braid I (13), inner lining I (14), braid II (15) and inner lining II (16) arranged sequentially on the outside of the conductor I (11); The signal lines (2) are arranged in a ring with six lines.

2. The multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks according to claim 1, characterized in that, The conductor I (11) is the positive pole, the braid I (13) is the negative pole, and the conductor I (11) and the braid I (13) are protected by insulation (12); Among them, the insulation (12) is specifically silicone rubber, and the temperature resistance range of silicone rubber is -100℃~250℃.

3. The multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks according to claim 2, characterized in that, The inner lining I (14) is specifically made of ethylene propylene rubber, the braid (4) is specifically a cross-arranged structure of fine copper wire and copper foil wire, and the inner lining II (16) is specifically a flexible PVC layer.

4. The multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks according to claim 3, characterized in that, The conductor I (11) is made of Category 6 stranded fine copper wire, and a bulletproof wire is added in the middle of the conductor I (11), and the defective positions inside the cable structure are filled.

5. The multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks according to claim 4, characterized in that, The signal line (2) includes a conductor, and the conductor of the signal line (2) has the same structure as the conductor I (11) of the power line (1).

6. The multi-group flexible, bend-resistant heavy-duty truck high-power charging robot cable according to claim 5, characterized in that: It also includes a sheath (7), which covers the outermost layer of the cable structure, and the sheath (7) is specifically a silicone composite layer with a temperature range of -40°C to 200°C.

7. The multi-group flexible, bend-resistant, high-power charging robot cable for heavy-duty trucks according to claim 6, characterized in that: It also includes a combined structure, which includes a first arc-shaped groove (71) opened on the inner side of the sheath (7), a second arc-shaped groove (72) opened on the outer side of the outer sheath (6), and a soft steel wire (73) inserted into the first arc-shaped groove (71) and the second arc-shaped groove (72).

Images