Automotive rear wheel steering wire harness assembly

Abstract

The application discloses a rear wheel steering wire harness assembly of an automobile, and relates to the field of wire harness assemblies, which comprises a tail cover, a shell, a wire harness and a locking mechanism, one end of the wire harness is mounted on the tail cover, the other end of the wire harness is mounted on the shell, the locking mechanism is used for assembling and fastening the end of the wire harness, and is respectively mounted on the connecting nodes of the end of the wire harness, the tail cover and the shell; at least four ports are formed on the tail cover for matching different plug interfaces; wherein the locking mechanism comprises buckles and lock housings, the buckles are integrally formed on the tail cover and the shell respectively, the lock housings are respectively plugged on the tail cover and the shell, lock grooves are formed on the lock housings, the buckles are buckled on the lock grooves, and wire harness holes for the wire harness to pass through are symmetrically formed on the lock housings. The application has the effects of facilitating wire harness assembly, adapting to different plug interfaces, protecting the wire harness, improving connection stability, and enhancing conductive performance.

Description

Technical Field

[0001] This application relates to the field of wiring harness assembly technology, and in particular to automotive rear wheel steering wiring harness assemblies. Background Technology

[0002] With China's rapid economic growth and the rapid expansion of its automobile consumer market, the country has consistently ranked among the world's top automobile producers and sellers for many years, providing a huge market space for the automotive wiring harness industry. Through technological innovation and quality improvement, market share has gradually increased, and the variety of wiring harness products has become more diverse, meeting the needs of different vehicle models and functions. At the same time, the development of new energy vehicles and intelligent connected vehicles has brought new challenges and opportunities to the automotive wiring harness industry. Lightweight, intelligent, and environmentally friendly wiring harnesses have become development trends. New energy vehicles are driving the development of automotive wiring harnesses towards high voltage, and the application of intelligent technologies makes wiring harness systems more complex, requiring support for advanced functions, data transmission, and environmental standards.

[0003] In automotive steering systems, conventional methods have been used to address steering-related issues. Regarding connectors, ordinary, non-customized connectors are commonly used, which cannot be well adapted to different automotive steering motors, and the layout is difficult to customize with different pin counts to meet customer needs. For terminals, ordinary materials are generally used, lacking terminals with specific transition layers and good surface plating, and the manufacturing process lacks precise control over plating quality and performance. For wires, wires that are not resistant to high temperatures and pressure, and lack flexibility, are often used, making them unsuitable for complex automotive environments and specific wiring layouts. Regarding conduits, traditional corrugated conduits are commonly used, resulting in low compatibility with the wiring harness, complex assembly processes, and difficulty in achieving full coverage of the wiring harness.

[0004] Existing technologies have obvious shortcomings. Current automotive steering systems often have a large number of wiring harnesses in a single module, resulting in high costs. Furthermore, the utilization rate of wiring harness space is low, making it difficult to adapt to complex environments and failing to meet the automotive industry's requirements for cost control, space utilization, and environmental adaptability in automotive wiring harnesses. Utility Model Content

[0005] To address the problems of existing single-module wiring harnesses, such as large number of components, high cost, low space utilization, and poor environmental adaptability, this application provides a rear wheel steering wiring harness assembly for automobiles.

[0006] The automotive rear wheel steering wiring harness assembly provided in this application adopts the following technical solution: A rear wheel steering wiring harness assembly for automobiles includes a tail cover, a housing, a wiring harness, and a locking mechanism. One end of the wiring harness is mounted on the tail cover, and the other end of the wiring harness is mounted on the housing. The locking mechanism is used to fasten the end of the wiring harness and is respectively installed on the connection nodes between the end of the wiring harness and the tail cover and the housing. The tail cover has at least four ports for matching different plug interfaces. The locking mechanism includes a buckle and a lock housing. The buckle is integrally formed on the tail cover and the housing, respectively. The lock housing is inserted into the tail cover and the housing, respectively. The lock housing has a buckle groove, and the buckle is fastened to the buckle groove. The lock housing has symmetrical wire harness holes for wire harnesses to pass through.

[0007] By adopting the above technical solution, the integrated buckles on the tail cover and housing cooperate with the lock housing with locking grooves. The lock housing is inserted into the tail cover and housing respectively, causing the buckles to engage in the locking grooves. This ensures a secure and tight connection between the wiring harness end and the tail cover / housing connection points, preventing the wiring harness from loosening and ensuring the structural stability of the rear wheel steering wiring harness assembly. The at least four ports formed on the tail cover can match different connectors, improving the versatility and adaptability of the wiring harness assembly and meeting the connection requirements of different automotive components or equipment. The symmetrically opened wiring harness holes on the lock housing facilitate the passage of the wiring harness, rationally planning its routing and improving the neatness and orderliness of the wiring harness arrangement.

[0008] Optionally, a terminal is formed within the port, the terminal comprising a metal substrate, a nickel underlayer, and a silver plating layer, the metal substrate being mounted within the port, the nickel underlayer being coated on the outer surface of the metal substrate, and the silver plating layer being coated on the outer surface of the nickel underlayer.

[0009] By adopting the above technical solution, a terminal consisting of a metal substrate, a nickel underlayer, and a silver plating layer is used. The nickel underlayer acts as a transition and enhances the bonding force between the substrate and the silver plating layer. Silver has the highest conductivity among metal elements. The silver plating layer can significantly improve the conductivity of the terminal, ensuring stable and efficient current transmission, reducing signal loss during transmission, and both the nickel underlayer and the silver plating layer have certain corrosion resistance, which can effectively prevent the terminal from being oxidized and corroded in the use environment, thus extending its service life.

[0010] Optionally, the terminal has a columnar or sheet-like structure.

[0011] By adopting the above technical solutions, columnar or sheet-like structures can meet different layout and usage requirements.

[0012] Optionally, the wire harness is encased in a tubing, which is a silicone fiberglass tube.

[0013] By adopting the above technical solution, using silicone resin glass fiber tubes as the outer sheath of the wire harness provides excellent high-temperature insulation and protection, high compatibility with the wire harness, easy full coverage of the wire harness, simple assembly and processing procedures, eliminating the need for heat shrink tubing fixation required by traditional corrugated tubes, smaller outer diameter, more flexible, high compatibility with silicone wires, and better adaptability to the complex routing of the rear wheel steering wire harness in confined spaces.

[0014] Optionally, a buckle is integrally formed on the side of the tail cover, and a motor or other functional cylindrical accessory is fastened to the end face of the tail cover away from the multiple plug interfaces. A limit block is integrally formed on the cylindrical accessory, and the limit block and the buckle are fastened together.

[0015] By adopting the above technical solution, the wire harness end is assembled using a locking mechanism and installed on the connection nodes of the wire harness end with the tail cover and the housing respectively. The tail cover has at least four ports for matching different plug interfaces, which can improve the stability and adaptability of the wire harness installation. The buckle integrally formed on the side of the tail cover is engaged with the limiting block on the cylindrical accessory to achieve a stable connection between the tail cover and the motor or other functional cylindrical accessories, ensuring that the connection between the components is tight and reliable.

[0016] Optionally, the buckle is integrally formed with a toothed block, the end of which abuts against the limiting block.

[0017] By adopting the above technical solution, the engagement of the buckle and toothed block with the limiting block on the tail cover can further strengthen the connection between the tail cover and the cylindrical fitting.

[0018] Optionally, the end of the wire harness is integrally formed with a stud structure, and the arc-shaped section of the stud structure abuts against the inner wall of the port of the housing and the tail cover, respectively.

[0019] By adopting the above technical solutions, the connection between the wiring harness and the tail cap and housing is further strengthened, and the stability of the entire wiring harness assembly is improved.

[0020] Optionally, the cross-section of the port is circular, rectangular, or oblong.

[0021] By adopting the above technical solution, the cross-section of the port can be selected in three shapes: circular, rectangular, or oblong. Different plug interfaces can be flexibly adapted according to actual needs to meet diverse usage scenarios, improve the universality and applicability of the automotive rear wheel steering harness assembly, thereby reducing overall costs, improving space utilization, and enhancing adaptability to complex environments.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The tail cover has multiple ports to match different plug interfaces. The composite plug-in rear wheel steering motor rear cover connector can be fully adapted to the automotive steering motor selected by the customer, improving the space utilization of the automotive steering wiring harness and reducing costs. 2. The terminals are 9.5mm silver-plated terminals. The silver plating layer has good conductivity, which can ensure stable and efficient current transmission and reduce signal transmission loss. The nickel underlayer and silver plating layer have strong corrosion resistance, which can extend the service life of the terminals. The nickel underlayer can also enhance the wear resistance of the terminals. 3. The wire harness is wrapped in a silicone resin glass fiber tube, which has a high degree of compatibility with the wire harness and can easily achieve full coverage of the wire harness. The assembly and processing process is simple, and the small outer diameter and greater flexibility can adapt to complex routing in narrow spaces. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This application presents the overall structural assembly drawing.

[0025] Figure 2 This is an exploded view showing the overall structure of this application.

[0026] Figure 3 This application demonstrates Figure 1 A magnified view from direction A.

[0027] Figure 4 This application demonstrates Figure 1 A magnified view from direction B.

[0028] Reference numerals: 1. Tail cap; 2. Housing; 3. Wiring harness; 4. Locking mechanism; 41. Buckle; 42. Lock housing; 43. Locking groove; 44. Wiring harness hole; 5. Terminal; 6. Buckle ring; 7. Limiting block; 8. Toothed block; 9. Stud structure; 10. Cylindrical fitting. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0030] This application discloses an assembly of the rear wheel steering wiring harness 3 for automobiles.

[0031] Reference Figure 2The assembly includes a tail cover 1, a housing 2, a wiring harness 3, and a locking mechanism 4. One end of the wiring harness 3 is mounted on the tail cover 1, and the other end is mounted on the housing 2. The locking mechanism 4 is used to fasten the end of the wiring harness 3. The harnesses are respectively installed on the connection nodes between the end of the wiring harness 3 and the tail cover 1 and the housing 2. The tail cover 1 has at least four ports for matching different plug interfaces, so that the rear wheel steering wiring harness 3 assembly can be adapted to a variety of different plug interfaces, improving its versatility and applicability, reducing costs, and improving the space utilization of the lower wiring harness 3.

[0032] See Figure 3 As shown, the locking mechanism 4 includes a buckle 41 and a lock housing 42. The buckles 41 are integrally formed on the tail cap 1 and the housing 2, respectively. Four buckles 41 are provided. This integral forming ensures a stable connection between the buckles 41 and the tail cap 1 and the housing 2, preventing damage. The lock housing 42 is inserted into the tail cap 1 and the housing 2. This insertion method facilitates installation and disassembly, and makes subsequent maintenance and repair convenient. The lock housing 42 has a buckle groove 43, and the buckles 41 engage with the buckle groove 43, achieving the fastening function of the locking mechanism 4. The lock housing 42 has symmetrically arranged wire harness holes 44 for the wire harness 3 to pass through. The wire harness 3 can smoothly pass through the wire harness holes 44, and the symmetrically arranged wire harness holes 44 help ensure the stable installation of the wire harness 3. These components of the locking mechanism 4 are combined together, and the locking shell 42 is tightly connected to the tail cover 1 and the housing 2 by the engagement of the buckle 41 and the locking groove 43, thereby achieving the fastening of the end of the wire harness 3, preventing the wire harness 3 from loosening, and ensuring the stability and reliability of the entire wire harness 3 assembly.

[0033] See Figure 1As shown, a terminal 5 is formed within the port. Terminal 5 includes a metal substrate, a nickel underlayer, and a silver plating layer. The metal substrate is installed within the port, the nickel underlayer is coated on the outer surface of the metal substrate, and the silver plating layer is coated on the outer surface of the nickel underlayer. The metal substrate can generally be made of metals such as copper, which have good conductivity. The nickel underlayer, located between the substrate and the silver plating layer, acts as a transition and enhances the bonding force, allowing the silver plating layer to adhere better to the metal substrate. The silver plating layer can significantly improve the conductivity of terminal 5. The manufacturing process of male terminal 5 includes pre-plating treatment, nickel plating, silver plating, and post-treatment. During pre-plating treatment, the metal substrate undergoes degreasing, rust removal, and pickling to remove surface impurities such as oil and oxide scale, ensuring good adhesion between the subsequent plating layer and the substrate. During nickel plating, a layer of nickel is plated onto the pre-treated substrate using methods such as electroplating. The composition, temperature, pH value, current density, and electroplating time of the nickel plating solution affect the quality and performance of the nickel underlayer. During silver plating, silver plating is performed on a nickel-plated underlayer. By controlling the formulation and process parameters of the silver plating solution, a silver layer with good performance is obtained. In post-treatment, after silver plating, terminal 5 undergoes cleaning, drying, and passivation processes to improve its corrosion resistance and stability. Terminal 5 can also employ other multi-layer structural designs, as long as good conductivity and corrosion resistance are achieved. This combination of terminal 5's structural design and manufacturing process gives it excellent conductivity, corrosion resistance, and wear resistance, ensuring stable and efficient current transmission, reducing signal transmission losses, and extending its service life.

[0034] See Figure 2 As shown, wire harness 3 is encased in tubing made of silicone resin fiberglass. Silicone resin fiberglass tubing is made by braiding alkali-free glass fibers into a tubular shape, coating it with silicone resin, and then treating it at high temperatures. It offers excellent high-temperature resistance and insulation protection. Compared to traditional corrugated tubing, it has a higher compatibility with wire harness 3, more easily achieving full coverage of wire harness 3. The assembly and processing steps are simpler, eliminating the need for heat-shrink tubing fixation required with traditional corrugated tubing. Furthermore, its smaller outer diameter and greater flexibility allow for better compatibility with silicone wires, making it more adaptable to the complex routing of rear wheel steering wire harness 3 in confined spaces. Other materials with high-temperature resistance and insulation properties, such as ceramic fiber tubing, can also be used to replace the tubing. The combination of the tubing and wire harness 3 effectively protects the wire harness 3 from high temperatures and abrasion, extending its service life.

[0035] See Figure 4As shown, a retaining ring 6 is integrally formed on the side of the tail cover 1. A motor or other functional cylindrical accessory 10 is fastened to the end face of the tail cover 1 away from the multiple insertion interfaces. A limiting block 7 is integrally formed on the cylindrical accessory 10, and the limiting block 7 and the retaining ring 6 are fastened together. The integral forming of the retaining ring 6 and the tail cover 1 ensures their connection strength. The fastening engagement of the limiting block 7 and the retaining ring 6 allows the motor or other functional cylindrical accessory 10 to be firmly installed on the tail cover 1. A toothed block 8 is integrally formed on the retaining ring 6. The end of the toothed block 8 abuts against the limiting block 7. This toothed block 8 design further enhances the stability of the fastening and prevents the limiting block 7 from easily detaching from the retaining ring 6. Through the assembly of components such as the tail cover 1, retaining ring 6, limiting block 7, and toothed block 8, a stable connection between the motor or other functional cylindrical accessory 10 and the tail cover 1 is achieved, ensuring the normal operation of the entire rear wheel steering harness 3 assembly.

[0036] See Figure 2 As shown, the end of the wire harness 3 is integrally formed with a stud structure 9. The arc-shaped section of the stud structure 9 abuts against the inner wall of the port of the housing 2 and the tail cover 1 respectively. The stud structure 9 can increase the contact area and friction between the end of the wire harness 3 and the inner wall of the port, making the wire harness 3 more securely installed. The cross-section of the port is circular, rectangular or oblong. Different cross-sectional shapes can be selected according to actual needs to adapt to different plug interfaces. Through the cooperation between the stud structure 9 at the end of the wire harness 3 and the port, the reliability of the connection between the wire harness 3 and the tail cover 1 and the housing 2 is ensured.

[0037] The implementation principle of the automotive rear wheel steering wiring harness 3 assembly in this application embodiment is as follows: the composite plug connector enables the wiring harness 3 assembly to adapt to a variety of different plug interfaces, improving space utilization and versatility; the locking mechanism 4 ensures the tightness of the end of the wiring harness 3 and prevents loosening; the special structure and process of the terminal 5 improves conductivity and service life; the tubing effectively protects the wiring harness 3; the stable connection between the tail cap 1 and the motor or other functional cylindrical accessories 10, as well as the reliable cooperation between the end of the wiring harness 3 and the port, ensures the stability and reliability of the entire system. Compared with the prior art, this wiring harness 3 assembly improves space utilization and effectively reduces costs when there are many units, while also improving environmental adaptability.

[0038] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rear wheel steering wiring harness assembly for automobiles, characterized in that: The device includes a tail cap (1), a housing (2), a wiring harness (3), and a locking mechanism (4). One end of the wiring harness (3) is mounted on the tail cap (1), and the other end of the wiring harness (3) is mounted on the housing (2). The locking mechanism (4) is used to fasten the end of the wiring harness (3) and is installed on the connection nodes between the end of the wiring harness (3) and the tail cap (1) and the housing (2). The tail cap (1) has at least four ports for matching different plug interfaces. The locking mechanism (4) includes a buckle (41) and a lock shell (42). The buckle (41) is integrally formed on the tail cap (1) and the housing (2), respectively. The lock shell (42) is inserted into the tail cap (1) and the housing (2), respectively. The lock shell (42) has a buckle groove (43) and the buckle (41) is fastened to the buckle groove (43). The lock shell (42) has symmetrical wire harness holes (44) for the wire harness (3) to pass through.

2. The automotive rear wheel steering harness assembly according to claim 1, characterized in that: A terminal (5) is formed in the port. The terminal (5) includes a metal substrate, a nickel underlayer and a silver plating layer. The metal substrate is installed in the port. The nickel underlayer is coated on the outer surface of the metal substrate. The silver plating layer is coated on the outer surface of the nickel underlayer.

3. The automotive rear wheel steering harness assembly according to claim 2, characterized in that: The terminal (5) has a columnar or sheet-like structure.

4. The automotive rear wheel steering harness assembly according to claim 1, characterized in that: The wire harness (3) is wrapped with a tubing, which is made of silicone resin glass fiber tubing.

5. The automotive rear wheel steering wiring harness assembly according to claim 1, characterized in that: The tail cap (1) has an integrally formed buckle (6) on its side. The tail cap (1) has a motor or other functional cylindrical accessory (10) fastened to its end face away from multiple plug-in interfaces. The cylindrical accessory (10) has an integrally formed limit block (7). The limit block (7) and the buckle (6) are fastened together.

6. The automotive rear wheel steering harness assembly according to claim 5, characterized in that: The buckle (6) has an integrally formed toothed block (8), the end of which abuts against the limiting block (7).

7. The automotive rear wheel steering wiring harness assembly according to claim 1, characterized in that: The end of the wire harness (3) is integrally formed with a stud structure (9), and the arc-shaped section of the stud structure (9) abuts against the inner wall of the port of the housing (2) and the tail cover (1).

8. The automotive rear wheel steering wiring harness assembly according to claim 1, characterized in that: The cross-section of the port is circular, rectangular, or oblong.

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