Optical-electrical composite cable

Abstract

The utility model belongs to the technical field of automobile cable, disclose a kind of photoelectric composite cable, including intermediate cable core, shielding layer and sheath layer, intermediate cable core includes optical fiber unit and power cord, optical fiber unit includes optical fiber wire core, multiple aramid fiber and first insulating layer, multiple aramid fiber includes optical fiber unit, first insulating layer is covered in the outer periphery of multiple aramid fiber, and optical fiber unit and power cord are same direction twisted, shielding layer is covered in the outer periphery of intermediate cable core.The photoelectric composite cable provided by the utility model can solve the problem that the photoelectric composite cable used for connecting the steering wheel and the intelligent system of the vehicle is twisted by high frequency during the use of the vehicle, which can cause the optical fiber, power cord and other cores in the photoelectric composite cable to be easily broken, affecting the use of vehicle functions and further affecting the user experience of the vehicle owner.

Description

Technical Field

[0001] This utility model relates to the field of automotive cable technology, and in particular to an optoelectronic composite cable. Background Technology

[0002] With the development of technology, the automotive industry is gradually transforming towards intelligentization, with functions such as autonomous driving, intelligent cockpit, and vehicle-machine interaction emerging. To facilitate vehicle operation for car owners, more buttons have been added to the steering wheel. These buttons are connected to the car's intelligent system via photoelectric composite cables, enabling car owners to control the car's intelligent functions through the buttons on the steering wheel.

[0003] When car owners turn the steering wheel to adjust the car's direction while driving, the optoelectronic composite cable connecting the steering wheel buttons and intelligent systems is subjected to high-frequency twisting. This can cause the optical fibers, power lines, and other wires in the optoelectronic composite cable to break easily, affecting the use of vehicle functions and consequently impacting the user experience.

[0004] Therefore, there is an urgent need for a photoelectric composite cable to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an optoelectronic composite cable that can solve the problem that during vehicle use, the optoelectronic composite cable used to connect the car steering wheel and intelligent system is subjected to high-frequency twisting, which makes the optical fiber, power line and other wire cores in the optoelectronic composite cable prone to breakage, affecting the use of vehicle functions and thus affecting the user experience of the car owner.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An optoelectronic composite cable, comprising:

[0008] The intermediate cable core includes an optical fiber unit and a power line. The optical fiber unit includes an optical fiber core, multiple aramid fibers, and a first insulation layer. The multiple aramid fibers surround the optical fiber core, and the first insulation layer covers the outer periphery of the multiple aramid fibers. The optical fiber unit and the power line are twisted in the same direction.

[0009] A shielding layer that covers the outer periphery of the intermediate cable core;

[0010] A sheath layer, which covers the outer periphery of the shielding layer.

[0011] As a preferred technical solution for optoelectronic composite cables, the intermediate cable core further includes a filler strip, which is located in the middle of the intermediate cable core, and the filler strip, the optical fiber unit, and the power line are twisted together in the same direction.

[0012] As a preferred technical solution for optoelectronic composite cables, the filler strip is made of nylon or polytetrafluoroethylene.

[0013] As a preferred technical solution for optoelectronic composite cables, the power cord includes a first conductor, a reinforcing core, and a second insulating layer. The reinforcing core is located in the middle of the first conductor, and the second insulating layer covers the outer periphery of the first conductor.

[0014] As a preferred technical solution for optoelectronic composite cables, the first conductor is formed by twisting multiple strands of wire layer by layer, and the twisting direction of the strands in each layer is the same.

[0015] As a preferred technical solution for optoelectronic composite cables, the conductor strands are formed by twisting together multiple tin-plated silver wires.

[0016] As a preferred technical solution for optoelectronic composite cables, the shielding layer includes a main shielding mesh and an adhesive-backed aluminum-plastic composite tape. The main shielding mesh covers the outer periphery of the intermediate cable core, and the adhesive-backed aluminum-plastic composite tape is spirally wound around the outer periphery of the main shielding mesh.

[0017] As a preferred technical solution for optoelectronic composite cables, the optoelectronic composite cables further include polyester tape, which is placed between the intermediate cable core and the main shielding mesh; the polyester tape is spirally wound around the outer periphery of the intermediate cable core.

[0018] As a preferred technical solution for optoelectronic composite cables, the optoelectronic composite cables also include a ground wire, which is placed between the polyester tape and the main shielding mesh. The ground wire includes a second conductor and a reinforcing rope, with the reinforcing rope placed in the middle of the second conductor.

[0019] As a preferred technical solution for optoelectronic composite cables, the second conductor is formed by twisting together multiple tin-plated copper wires, and the twisting pitch ratio of the multiple tin-plated copper wires and the reinforcing rope is 15 to 18 times.

[0020] The beneficial effects of this utility model are as follows:

[0021] The optoelectronic composite cable provided by this utility model surrounds an optical fiber core with multiple aramid fibers. A first insulation layer fixes the optical fiber core and aramid fibers, strengthening the optical fiber core. Furthermore, the first insulation layer further protects the optical fiber core on top of the aramid fibers. This reduces the damage to the optical fiber unit caused by frequent steering wheel rotation, significantly lowering the risk of breakage and ensuring a better user experience. The optical fiber unit and power cable are twisted in the same direction, ensuring consistent sliding surfaces and reducing wear caused by friction when the optoelectronic composite cable twists with the steering wheel. This further reduces the risk of breakage after high-frequency twisting, improving the cable's torsion resistance and lifespan, ensuring the use of intelligent vehicle functions and ultimately enhancing the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the optoelectronic composite cable provided by this utility model.

[0023] In the picture:

[0024] 1. Intermediate cable core; 11. Optical fiber unit; 111. Optical fiber core; 112. Aramid fiber; 113. First insulation layer; 12. Power cord; 121. First conductor; 122. Reinforcing core; 123. Second insulation layer; 13. Ground wire; 131. Reinforcing rope; 132. Second conductor; 14. Filler strip;

[0025] 2. Shielding layer; 21. Main shielding mesh; 22. Adhesive-backed aluminum-plastic composite tape; 3. Sheath layer; 4. Polyester tape. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 As shown in the figure, this embodiment provides an optoelectronic composite cable for connecting the car's steering wheel and the car's intelligent system. The car owner can adjust the car's intelligent functions through the buttons on the steering wheel, improving the car owner's ease of operation.

[0032] The optoelectronic composite cable includes a core 1, a shielding layer 2, and a sheath layer 3. The core 1 includes an optical fiber unit 11 and a power line 12. The optical fiber unit 11 includes an optical fiber core 111, multiple aramid fibers 112, and a first insulation layer 113. The multiple aramid fibers 112 surround the optical fiber core 111, and the first insulation layer 113 covers the outer periphery of the multiple aramid fibers 112. After the multiple aramid fibers 112 surround the optical fiber core 111, a hot-melt insulating material is extruded and coated around the multiple aramid fibers 112 using an extruder. The insulating material flows into the interior of the optical fiber core and the multiple aramid fibers 112, fixing them in place while completely covering the outer periphery of the multiple aramid fibers 112, forming the first insulation layer 113, thus giving the optical fiber unit 11 insulation properties. Multiple aramid fibers 112 surround the optical fiber core 111, and a first insulating layer 113 fixes the optical fiber core 111 and the aramid fibers 112. The multiple aramid fibers 112 strengthen the optical fiber core 111, and the first insulating layer 113 further protects the optical fiber core 111 on the basis of the aramid fibers 112. In this way, the damage to the optical fiber unit 11 after frequent twisting of the steering wheel can be reduced, and the risk of breakage of the optical fiber unit 11 can be greatly reduced.

[0033] In this design, the fiber optic unit 11 and the power line 12 are twisted in the same direction. This ensures that the contact surfaces of the fiber optic unit 11 and the power line 12 slide in the same direction, reducing the wear caused by mutual friction when the optoelectronic composite cable twists with the steering wheel. This reduces the risk of breakage of the fiber optic unit 11 and the power line 12 after high-frequency twisting of the optoelectronic composite cable, improves the torsion resistance and service life of the optoelectronic composite cable, ensures the use of the vehicle's intelligent functions, and ultimately ensures the user experience of the car owner.

[0034] The shielding layer 2 covers the outer periphery of the middle cable core 1, which plays a role in shielding against external electromagnetic interference. The optical fiber unit 11 can transmit communication signals more stably, and the power line 12 can transmit current stably, thereby improving the intelligent response speed and stability of the vehicle.

[0035] The sheath layer 3 covers the outer periphery of the shielding layer 2, giving the optoelectronic composite cable compression resistance and abrasion resistance, thus ensuring the service life of the optoelectronic composite cable. In this embodiment, the sheath layer 3 can be made of cross-linked vulcanized rubber.

[0036] In this embodiment, the intermediate cable core 1 also includes a filler strip 14, which is located in the middle of the intermediate cable core 1 and is twisted in the same direction as the optical fiber unit 11 and the power line 12. The filler strip 14 provides support, reducing the deformation of the optical fiber unit 11 and the power line 12 when the optoelectronic composite cable is twisted, thereby further reducing the risk of breakage of the optical fiber unit 11 and the power line 12, improving the torsional resistance of the optoelectronic composite cable, and enhancing the user experience for vehicle owners. The filler strip 14 is made of nylon or polytetrafluoroethylene (PTFE). When the optoelectronic composite cable is twisted, the filler strip 14, the optical fiber unit 11, and the power line 12 will rub against each other. Both nylon and PTFE have good wear resistance, which can improve the service life of the optoelectronic composite cable.

[0037] In this embodiment, the power cord 12 includes a first conductor 121, a reinforcing core 122, and a second insulating layer 123. The reinforcing core 122 is located in the middle of the first conductor 121, and the second insulating layer 123 is located on the outer periphery of the first conductor 121. The reinforcing core 122 improves the torsional resistance of the first conductor 121, thereby improving the overall torsional resistance of the power cord 12. The second insulating layer 123 provides insulation to the power cord 12, improving its safety and reducing the risk of short circuits and leakage.

[0038] Furthermore, the first conductor 121 is formed by multiple strands of wire twisted together, with each layer of strands twisted in the same direction. This ensures that the contact surfaces of each layer of strands slide in a consistent manner, effectively reducing friction between the strands when the power cable 12 twists, lowering the risk of breakage of the first conductor 121, improving the torsional resistance of the power cable 12, and thus extending its service life. This reduces the risk of breakage of the power cable 12 after high-frequency twisting of the optoelectronic composite cable, improving the user experience for car owners. In this embodiment, the reinforcing core 122 and the multiple strands are arranged in a 1+6+12 configuration, which not only makes the power cable 12 relatively round but also facilitates its processing.

[0039] The conductor strand is formed by twisting together multiple tin-plated silver wires. Since tin plating affects the conductivity of copper wire, and silver has superior conductivity than copper, the conductor strand formed by twisting together multiple tin-plated silver wires exhibits superior conductivity compared to strands formed by conventionally twisting together tin-plated copper wire, thus enhancing the speed of vehicle intelligence functions. Simultaneously, the twisting together of multiple tin-plated silver wires improves the flexibility of the conductor strand, thereby increasing the flexibility of the first conductor 121 and further improving the torsional resistance of the power line 12.

[0040] In this embodiment, both the first insulating layer 113 and the second insulating layer 123 are made of irradiated cross-linked polyethylene.

[0041] In this embodiment, the shielding layer 2 includes a main shielding mesh 21 and an adhesive-backed aluminum-plastic composite tape 22. The main shielding mesh 21 covers the outer periphery of the intermediate cable core 1, and the adhesive-backed aluminum-plastic composite tape 22 is spirally wound around the outer periphery of the main shielding mesh 21, thus further improving the shielding effect of the shielding layer 2. The main shielding mesh 21 is a metal braided mesh, fitted around the outer periphery of the intermediate cable core 1. The adhesive-backed aluminum-plastic composite tape 22 has a structure where solid adhesive, a plastic layer, and an aluminum layer are stacked sequentially. When the sheath material is extruded onto the adhesive-backed aluminum-plastic composite tape 22 using an extruder, the fixing adhesive melts due to the high temperature during extrusion and passes through the main shielding mesh 21. Thus, the shielding layer 2 adheres to the outer periphery of the intermediate cable core 1, making the internal structure of the optoelectronic composite cable more compact and improving its overall roundness.

[0042] In this embodiment, the optoelectronic composite cable also includes a polyester tape 4, which is placed between the intermediate cable core 1 and the main shielding mesh 21. Specifically, the polyester tape 4 is spirally wound around the outer periphery of the intermediate cable core 1. The polyester tape 4 prevents the copper wires of the main shielding mesh 21 from breaking and embedding into the first insulation layer 113 and the second insulation layer 123, thus ensuring the pressure resistance of the intermediate cable core 1 and consequently ensuring the pressure resistance and safety of the optoelectronic composite cable.

[0043] In this embodiment, the optoelectronic composite cable also includes a ground wire 13, which is placed between the polyester tape 4 and the main shielding mesh 21. The ground wire 13 includes a second conductor 132 and a reinforcing rope 131, with the reinforcing rope 131 positioned in the middle of the second conductor 132. Thus, the second conductor 132 portion of the ground wire 13 is in close contact with the main shielding mesh 21, allowing the shielding layer 2 and the ground wire 13 to provide dual shielding, further improving the optoelectronic composite cable's resistance to external electromagnetic interference. Simultaneously, the polyester tape 4 protects the first insulation layer 113 and the second insulation layer 123, preventing the tinned copper wire in the second conductor 132 from breaking and embedding into the first and second insulation layers 113 and 123, further ensuring the voltage withstand capability of the intermediate cable core 1.

[0044] The reinforcing rope 131 is positioned in the middle of the second conductor 132. The reinforcing rope 131 serves a reinforcing function, improving the torsional resistance of the ground wire 13 and thus extending its service life under high-frequency torsion conditions in the optoelectronic composite cable, ensuring a better user experience for vehicle owners. Furthermore, the second conductor 132 is formed by stranding multiple tinned copper wires, with a strand diameter ratio of 15 to 18 times between the strands and the reinforcing rope 131. Since the strand diameter ratio of existing ground wires is mostly 20 to 25 times, reducing this ratio further improves the bending and torsional resistance of the ground wire 13, further extending its service life.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A photoelectric composite cable, characterized in that, include: The intermediate cable core (1) includes an optical fiber unit (11) and a power line (12). The optical fiber unit (11) includes an optical fiber core (111), multiple aramid fibers (112), and a first insulation layer (113). The multiple aramid fibers (112) surround the optical fiber core (111), and the first insulation layer (113) covers the outer periphery of the multiple aramid fibers (112). The optical fiber unit (11) and the power line (12) are twisted in the same direction. A shielding layer (2) is provided, which covers the outer periphery of the intermediate cable core (1). Sheath layer (3) covers the outer periphery of shielding layer (2).

2. The optoelectronic composite cable according to claim 1, characterized in that, The intermediate cable core (1) also includes a filler strip (14), which is located in the middle of the intermediate cable core (1), and the filler strip (14), the optical fiber unit (11) and the power line (12) are twisted together in the same direction.

3. The optoelectronic composite cable according to claim 2, characterized in that, The filler strip (14) is made of nylon or polytetrafluoroethylene.

4. The optoelectronic composite cable according to claim 1, characterized in that, The power cord (12) includes a first conductor (121), a reinforcing core (122), and a second insulating layer (123). The reinforcing core (122) is located in the middle of the first conductor (121), and the second insulating layer (123) covers the outer periphery of the first conductor (121).

5. The optoelectronic composite cable according to claim 4, characterized in that, The first conductor (121) is formed by twisting multiple strands of wire together, and the twisting direction of each strand of wire is the same.

6. The optoelectronic composite cable according to claim 5, characterized in that, The conductor strands are formed by twisting together multiple tin-plated silver wires.

7. The optoelectronic composite cable according to claim 2, characterized in that, The shielding layer (2) includes a main shielding mesh (21) and an adhesive aluminum-plastic composite tape (22). The main shielding mesh (21) covers the outer periphery of the intermediate cable core (1), and the adhesive aluminum-plastic composite tape (22) is spirally wound around the outer periphery of the main shielding mesh (21).

8. The optoelectronic composite cable according to claim 7, characterized in that, The optoelectronic composite cable also includes a polyester tape (4), which is placed between the intermediate cable core (1) and the main shielding mesh (21); the polyester tape (4) is spirally wound around the outer periphery of the intermediate cable core (1).

9. The optoelectronic composite cable according to claim 8, characterized in that, The optoelectronic composite cable also includes a ground wire (13), which is placed between the polyester tape (4) and the main shielding mesh (21). The ground wire (13) includes a second conductor (132) and a reinforcing rope (131), with the reinforcing rope (131) placed in the middle of the second conductor (132).

10. The optoelectronic composite cable according to claim 9, characterized in that, The second conductor (132) is formed by twisting together multiple tin-plated copper wires, and the twisting diameter ratio of the multiple tin-plated copper wires and the reinforcing rope (131) is 15 to 18 times.

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