High-precision positioning spoiler FAKRA connector wire harness

Abstract

The utility model discloses a high -accuracy positioning spoiler FAKRA connector wire harness, including high temperature resistance coaxial cable, female terminal connector, male terminal connector, composite shield anti -interference cable covering structure, wire slot seat, spoiler, wiring fixed seat, connector fixed bayonet and silica gel cover, one end of high temperature resistance coaxial cable is connected with female terminal connector, and the other end is connected with male terminal connector, and high temperature resistance coaxial cable is equipped with composite shield anti -interference cable covering structure, and composite shield anti -interference cable covering structure installs to spoiler through wire slot seat, and composite shield anti -interference cable covering structure fixes cable on specific path through wiring fixed seat, and male terminal connector is firmly locked by connector fixed bayonet, and high temperature resistance coaxial cable still is installed with silica gel cover. Through above -mentioned mode, the utility model dynamic waterproof sealing is good, and the stability of anti -vibration is enhanced, and the signal transmission efficiency is greatly optimized, and the positioning accuracy is good.

Description

Technical Field

[0001] This utility model relates to the field of wire harness technology, and in particular to a high-precision positioning spoiler FAKRA connector wire harness. Background Technology

[0002] As intelligent driving systems develop towards multi-view vision fusion, the rear-view camera needs to form a triangulation network with the left and right side-view cameras, which places higher demands on the positioning accuracy, signal integrity, and environmental tolerance of the connecting wiring harness.

[0003] Traditional FAKRA harnesses face the following key challenges when applied to spoiler areas: Waterproof seal failure: The spoiler area is directly exposed to high-speed airflow and rainwater erosion. Traditional rubber seals are prone to micro-gaps under vibration conditions, leading to water vapor penetration. Especially under alternating temperatures of -40℃ to 85℃, it is difficult to meet the IP67 protection requirements. Dynamic vibration loosening: The vibration amplitude of the spoiler can reach 2-3mm when the vehicle is in motion. The conventional slot structure of the wire harness fixing method lacks a deformation compensation mechanism, which can easily cause micro-motion wear of the connector terminals and cause signal transmission interruption. Increased electromagnetic interference: When the three cameras work in parallel, they generate high-frequency signal crosstalk (1-6GHz band). Ordinary shielding layers are prone to woven mesh breakage at bending points, resulting in a decrease in shielding effectiveness of ≥15dB. Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a high-precision positioning spoiler FAKRA connector harness. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a high-precision positioning spoiler FAKRA connector wiring harness, which focuses on addressing a series of key challenges faced by the three-eye camera wiring harness in advanced intelligent driving systems (L3+). It mainly focuses on three important aspects: dynamic sealing reliability, high-frequency signal integrity, and millimeter-level spatial positioning accuracy, and strives to achieve effective optimization and improvement in these technical dimensions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A high-precision positioning spoiler FAKRA connector harness is provided. This high-precision positioning spoiler FAKRA connector harness includes a high-temperature resistant coaxial cable, a female terminal connector, a male terminal connector, a composite shielded anti-interference cable sheath structure, a cable tray, a spoiler, a wiring fixing seat, a connector fixing bayonet, and a silicone sleeve. One end of the high-temperature resistant coaxial cable is connected to the female terminal connector, and the other end is connected to the male terminal connector. The high-temperature resistant coaxial cable is covered with a composite shielded anti-interference cable sheath structure, which is installed on the spoiler via the cable tray. The composite shielded anti-interference cable sheath structure fixes the cable on a specific path via the wiring fixing seat. The male terminal connector is securely locked by the connector fixing bayonet. A silicone sleeve is also installed on the high-temperature resistant coaxial cable.

[0006] Preferably, the composite shielded anti-interference cable covering structure includes a physical protective layer, a shielding layer, and an insulating layer wrapped around the high-temperature resistant coaxial cable from the inside out. The physical protective layer is made of Kevlar wear-resistant braided mesh, the shielding layer is made of conductive cloth tape containing silver-copper alloy fibers, and the surface resistance is <0.05Ω / sq. The insulating layer is made of ordinary cloth tape. The Kevlar wear-resistant braided mesh, conductive cloth tape, and ordinary cloth tape form a functional gradient layer of electromagnetic shielding, mechanical protection, and insulating isolation.

[0007] Preferably, the inner wall of the wire groove seat is designed with gradient ribs, the height difference between adjacent ribs is 0.3-0.5mm, and the spacing between the ribs is distributed in a gradient of 1mm. The wire groove seat is provided with a dual-hardness silicone composite structure for protecting the ribs. The dual-hardness silicone composite structure includes an inner soft rubber layer that provides certain elasticity and cushioning performance, and an outer hard rubber layer that prevents damage from external impact or friction. The hardness of the inner soft rubber layer is 50 Shore A, and the hardness of the outer hard rubber layer is 70 Shore A.

[0008] Preferably, the inner wall of the silicone sleeve is provided with an annular protrusion array, the protrusion height is 0.5mm and the protrusion spacing is 1mm. The annular protrusion array forms a multi-point contact with the high-temperature resistant coaxial cable, and the contact points are interference-fitted with an interference amount of 0.2-0.4mm.

[0009] Preferably, the bottom of the silicone sleeve is provided with an annular hollow buffer cavity, which forms a radial torsion buffer zone for the cable with the silicone sleeve wall portion adjacent to the high-temperature coaxial cable, and the depth of the annular hollow buffer cavity is 2-3mm.

[0010] Preferably, the outer wall of the silicone sleeve is provided with a sheet metal contact surface, and the sheet metal contact surface is provided with a tapered groove. The tapered groove has an inlet width of 5mm, an end width of 2mm, a taper of 15°±2°, and a pull-out force at the groove ≥25N.

[0011] Compared with the prior art, the beneficial effects of this utility model are: Composite shielded anti-interference cable sheathing structure: from the inside out, it consists of Kevlar wear-resistant braided mesh tube (physical protection layer), conductive cloth tape (silver-copper alloy fiber shielding layer), and ordinary cloth tape (insulation isolation layer), forming a triple synergistic protection system of electromagnetic shielding, mechanical protection, and insulation isolation; Dynamic interference compensation structure for wire troughs: The spacing design of the gradually changing ribs on the inner wall of the wire trough seat, combined with the dual hardness silicone composite structure (outer layer 70 Shore A / inner layer 50 Shore A), achieves adaptive clamping force under temperature changes. Silicone sleeve multi-dimensional sealing and fixing system: The annular protrusion array on the inner wall of the silicone sleeve forms a multi-point interference fit with the cable, and the bottom annular hollow buffer cavity suppresses the cable swing gap, with a displacement of <0.08mm; Tapered engagement design: The silicone sleeve and the sheet metal contact surface adopt a 15°±2° taper angle (5mm at the inlet end → 2mm at the end end), with a pull-out force ≥25N (100% improvement over traditional solutions), and is compatible with sheet metal hole tolerances of ±0.5mm. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a FAKRA connector harness for a high-precision positioning spoiler.

[0013] Figure 2 This is a front view of a FAKRA connector harness for a high-precision positioning spoiler.

[0014] Figure 3 This is a schematic diagram of the composite shielded anti-interference cable covering structure of a high-precision positioning spoiler FAKRA connector harness.

[0015] Figure 4 This is a cross-sectional view of the wire slot seat of a FAKRA connector wire harness with a high-precision positioning spoiler.

[0016] Figure 5 This is a schematic diagram of the silicone sleeve structure of a FAKRA connector harness for a high-precision positioning spoiler.

[0017] Figure 6 This is a cross-sectional view of the silicone sleeve of a FAKRA connector harness for a high-precision positioning spoiler.

[0018] Among them, 1. High temperature resistant coaxial cable, 2. Female terminal connector, 3. Male terminal connector, 4. Composite shielded anti-interference cable covering structure, 41. Physical protection layer, 42. Shielding layer, 43. Insulation isolation layer, 5. Cable tray seat, 51. Gradient rib, 52. Inner soft rubber, 53. Outer hard rubber, 6. Spoiler plate, 7. Wiring fixing seat, 8. Connector fixing bayonet, 9. Silicone sleeve, 91. Annular protrusion array, 92. Annular hollowed-out buffer cavity, 93. Tapered gradient slot. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0020] Please see Figures 1 to 6 The embodiments of this utility model include: A high-precision positioning spoiler FAKRA connector wire harness includes a high-temperature resistant coaxial cable 1, a female terminal connector 2, a male terminal connector 3, a composite shielded anti-interference cable covering structure 4, a cable tray seat 5, a spoiler 6, a wiring fixing seat 7, a connector fixing bayonet 8, and a silicone sleeve 9.

[0021] The high-temperature resistant coaxial cable 1 is connected to a female terminal connector 2 at one end and a male terminal connector 3 at the other end. The high-temperature resistant coaxial cable 1 is covered with a composite shielded anti-interference cable sheath structure 4. The composite shielded anti-interference cable sheath structure 4 is installed on the spoiler 6 through the cable tray seat 5. The composite shielded anti-interference cable sheath structure 4 is also installed with a wiring fixing seat 7. The male terminal connector 3 is installed on the connector fixing bayonet 8. The high-temperature resistant coaxial cable 1 is also installed with a silicone sleeve 9.

[0022] The composite shielded anti-interference cable covering structure 4 includes a physical protective layer 41, a shielding layer 42, and an insulating layer 43 wrapped around the high-temperature resistant coaxial cable 1 from the inside out. The physical protective layer 41 is made of Kevlar wear-resistant braided mesh tube. The shielding layer is made of conductive cloth tape containing silver-copper alloy fibers with a surface resistance of <0.05Ω / sq. The insulating layer 43 is made of ordinary cloth tape. The Kevlar wear-resistant braided mesh tube, conductive cloth tape, and ordinary cloth tape form a functional gradient layer of electromagnetic shielding, mechanical protection, and insulating isolation.

[0023] The inner wall of the cable tray seat 5 is designed with gradient ribs 51, with a height difference of 0.3-0.5mm between adjacent ribs and a rib spacing of 1mm gradient. The gradient rib spacing design allows the clamping force of the cable tray on the inserted component to vary at different positions. The cable tray seat 5 is provided with a dual-hardness silicone composite structure to protect the ribs. The dual-hardness silicone composite structure includes an inner soft rubber 52 that provides a certain degree of elasticity and cushioning performance, and an outer hard rubber 53 that prevents damage from external impact or friction. The hardness of the inner soft rubber 52 is 50 Shore A, which is relatively soft; the hardness of the outer hard rubber 53 is 70 Shore A, which has relatively high hardness. This high-hardness outer layer can provide effective protection for the ribs, preventing them from being damaged by external impact or friction during use. The gradient rib spacing design combined with the dual-hardness silicone composite structure achieves adaptive clamping force on the high-temperature resistant coaxial cable 1 under different temperature changes.

[0024] The wiring bracket 7 can fix the high-temperature resistant coaxial cable 1 on a specific path, preventing the cable from swinging or crossing randomly inside the vehicle, making the wiring harness layout more neat and orderly, and facilitating installation and maintenance.

[0025] The male terminal connector 3 is a single-hole straight waterproof connector with a slot. The connector fixing slot 8 can firmly lock the male terminal connector 3 to prevent the connector from loosening or falling off due to vibration, bumps and other factors during vehicle operation, thereby ensuring a stable connection between various electrical devices in the wiring harness and avoiding signal transmission interruption or electrical failure.

[0026] The inner wall of the silicone sleeve 9 is provided with an annular protrusion array 91, with a protrusion height of 0.5mm and a protrusion spacing of 1mm. The annular protrusion array 91 forms a multi-point contact with the high-temperature resistant coaxial cable 1, with an interference fit at the contact point and an interference amount of 0.2-0.4mm. Under vibration conditions, the nonlinear deformation characteristics of the protrusions can absorb high-frequency micro-amplitude vibration energy (experiments show that the amplitude is reduced by 60%). The contact pressure distribution is optimized to avoid the local wear and perforation problems caused by traditional single-point interference, and the life is increased to >100,000 vibration cycles.

[0027] The bottom of the silicone sleeve 9 is provided with an annular hollowed-out buffer cavity 92. This annular hollowed-out buffer cavity 92 and the silicone sleeve wall adjacent to the high-temperature coaxial cable 1 form a unique radial torsion buffer zone for the cable. The depth of the annular hollowed-out buffer cavity 92 is 2-3mm. When the high-temperature coaxial cable 1 swings, the silicone sleeve wall, which serves as a buffer, can twist synchronously with the cable. Through this ingenious design, gaps can be effectively avoided between the cable and the silicone sleeve when the cable only swings radially. This effectively prevents the sealing effect from failing due to gaps, and significantly improves the reliability and long-term stability of the sealing performance.

[0028] The outer wall of the silicone sleeve 9 is provided with a sheet metal contact surface, and the sheet metal contact surface is provided with a tapered groove 93. The tapered groove 93 has an inlet width of 5mm, an end width of 2mm, a taper of 15°±2°, and a pull-out force of ≥25N at the groove. During assembly, the tapered guide generates a progressive compression force, and the installation resistance increases linearly from 5N to 15N, avoiding damage to the sealing ring caused by violent assembly. In the working state, the narrow end forms a mechanical locking zone (pull-out force ≥25N), which improves the anti-detachment force by 100% compared with the traditional equal-width structure.

[0029] This utility model provides a high-precision positioning spoiler FAKRA connector wiring harness that significantly improves overall reliability, greatly optimizes signal transmission performance, and effectively enhances assembly and maintenance efficiency. Specifically: 1. Significantly improves overall reliability: Superior Dynamic Sealing Performance: This product achieves a major breakthrough in dynamic sealing. The dynamic interference compensation structure design of the cable groove significantly improves the waterproof rating from the traditional IP54 to IP67. After 1000 hours of testing in a humid and hot environment of 85℃ and 85%RH, no leakage occurred. At the same time, under vibration conditions, the sealing ring exhibits extremely high durability with a lifespan of over 100,000 cycles, effectively ensuring the long-term stable operation of the product in complex environments.

[0030] Outstanding vibration resistance and stability: This invention achieves key improvements in addressing vibration resistance and stability issues. The gradient rib spacing design on the inner wall of the wire tray, combined with a dual-hardness silicone composite structure, enables adaptive clamping force under temperature changes. The wire harness displacement is significantly reduced from 1.5mm to 0.08mm compared to traditional solutions, a reduction of up to 95%. This greatly reduces the risk of wire harness displacement caused by vibration. In addition, the wear rate of connector pins is reduced by 80%, effectively extending the service life of the connector and ensuring the stability and reliability of the electrical connection.

[0031] 2. Significantly optimized signal transmission performance: Enhanced Electromagnetic Shielding Capability: The composite shielded anti-interference cable sheath structure exhibits superior electromagnetic shielding effectiveness, achieving a shielding efficiency of ≥90dB in the 6GHz band, compared to ≤75dB for traditional solutions. Simultaneously, the bit error rate is reduced from 1×10⁻⁶. -5 Significantly reduced to 1×10 -8 This significantly improves the accuracy and stability of signal transmission, effectively reduces signal interference and data loss, and meets the needs of modern high-speed, high-precision signal transmission.

[0032] 3. Effectively improves assembly and maintenance efficiency: Excellent installation compatibility: The silicone sleeve of the product adopts a tapered gradient structure, which has excellent installation compatibility. This structure can adapt to sheet metal hole tolerances of ±0.5mm, and the installation qualification rate is increased from 95% of the traditional solution to >99.8%, which greatly improves installation efficiency and quality, reduces the defect rate during the installation process, and provides a strong guarantee for the large-scale production and rapid installation of the product.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-precision positioning spoiler FAKRA connector harness, characterized in that: The system includes a high-temperature resistant coaxial cable (1), a female terminal connector (2), a male terminal connector (3), a composite shielded anti-interference cable covering structure (4), a cable tray seat (5), a baffle plate (6), a wiring fixing seat (7), a connector fixing bayonet (8), and a silicone sleeve (9). One end of the high-temperature resistant coaxial cable (1) is connected to the female terminal connector (2), and the other end is connected to the male terminal connector (3). The high-temperature resistant coaxial cable (1) is covered with a composite shielded anti-interference cable covering structure (4). The composite shielded anti-interference cable covering structure (4) is installed on the baffle plate (6) through the cable tray seat (5). The composite shielded anti-interference cable covering structure (4) fixes the cable on a specific path through the wiring fixing seat (7). The male terminal connector (3) is firmly locked by the connector fixing bayonet (8). A silicone sleeve (9) is also installed on the high-temperature resistant coaxial cable (1).

2. The high-precision positioning spoiler FAKRA connector harness according to claim 1, characterized in that: The composite shielded anti-interference cable covering structure (4) includes a physical protection layer (41), a shielding layer (42), and an insulating isolation layer (43) wrapped around the high-temperature resistant coaxial cable (1) from the inside out. The physical protection layer (41) is made of Kevlar wear-resistant braided mesh tube. The shielding layer is made of conductive cloth tape containing silver-copper alloy fibers with a surface resistance of <0.05Ω / sq. The insulating isolation layer (43) is made of ordinary cloth tape. The Kevlar wear-resistant braided mesh tube, conductive cloth tape, and ordinary cloth tape form a functional gradient layer of electromagnetic shielding, mechanical protection, and insulating isolation.

3. The high-precision positioning spoiler FAKRA connector harness according to claim 1, characterized in that: The inner wall of the wire groove seat (5) is designed with gradient ribs (51), the height difference between adjacent ribs is 0.3-0.5mm, and the spacing between the ribs is distributed in a gradient of 1mm. The wire groove seat (5) is provided with a dual-hardness silicone composite structure for protecting the ribs. The dual-hardness silicone composite structure includes an inner soft rubber (52) that provides certain elasticity and cushioning performance and an outer hard rubber (53) that prevents damage from external impact or friction. The hardness of the inner soft rubber (52) is 50 Shore A; the hardness of the outer hard rubber (53) is 70 Shore A.

4. The high-precision positioning spoiler FAKRA connector harness according to claim 1, characterized in that: The inner wall of the silicone sleeve (9) is provided with an annular protrusion array (91), with a protrusion height of 0.5mm and a protrusion spacing of 1mm. The annular protrusion array (91) and the high-temperature resistant coaxial cable (1) form a multi-point contact, with an interference fit at the contact point and an interference amount of 0.2-0.4mm.

5. The high-precision positioning spoiler FAKRA connector harness according to claim 1, characterized in that: The bottom of the silicone sleeve (9) is provided with an annular hollow buffer cavity (92). The annular hollow buffer cavity (92) and the silicone sleeve wall portion adjacent to the high-temperature coaxial cable (1) form a radial torsion buffer zone for the cable. The depth of the annular hollow buffer cavity (92) is 2-3mm.

6. The high-precision positioning spoiler FAKRA connector harness according to claim 1, characterized in that: The outer wall of the silicone sleeve (9) is provided with a sheet metal contact surface, and the sheet metal contact surface is provided with a tapered groove (93). The tapered groove (93) has an inlet width of 5mm, an end width of 2mm, a taper of 15°±2°, and a pull-out force at the groove ≥25N.

Images