A wire harness fixing structure

Abstract

The application belongs to the field of automobile parts, and provides a wire harness fixing structure, which comprises a support, a cable tie and a protruding block. The support is used for connecting a target structure; the cable tie is connected to the support and forms a cable tie ring with adjustable diameter; the protruding blocks are connected to the support in the axial direction of the cable tie ring at intervals, and all the protruding blocks are alternately distributed on both sides of the central axis of the cable tie ring in the axial direction of the cable tie ring. The application can solve the technical problem of low fixing reliability of automobile wire harness in the prior art.

Description

Technical Field

[0001] This application belongs to the field of automotive parts, and in particular relates to a wiring harness fixing structure. Background Technology

[0002] As the nerve center of the electrical system, the reliability of the automotive wiring harness in fixing it to sheet metal parts directly affects the overall vehicle's electrical performance, safety, and service life.

[0003] Currently, the fixing of wiring harnesses to sheet metal generally relies on traditional methods such as clips, cable ties, and bolts: clips are convenient to install but have poor vibration resistance, and the plastic material is prone to aging and loosening in the high-temperature environment of the engine compartment; cable ties are inexpensive but are mostly for single use, and excessive tightness can wear down the wiring harness insulation layer; bolts provide high fixing strength but require drilling, which damages the sheet metal's anti-rust layer, and have low installation efficiency. Under complex working conditions (such as vibration, high temperature, and space-constrained scenarios), the limitations of existing fixing structures are becoming increasingly apparent.

[0004] Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a wiring harness fixing structure to solve the technical problem of low reliability in the fixing of automotive wiring harnesses in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a wire harness fixing structure, comprising:

[0007] A support frame is used to connect the target structure.

[0008] Cable ties are attached to the bracket and form adjustable loops.

[0009] The bracket has several protrusions connected at intervals along the axial direction of the tie ring, and all the protrusions are alternately distributed on both sides of the central axis of the tie ring along the axial direction of the tie ring.

[0010] Compared with the prior art, the beneficial effect of the wire harness fixing structure in this application is that the staggered protrusions can provide multi-point support for the wire harness in the radial direction of the cable tie, increasing the contact area and friction, effectively preventing the wire harness from shifting or rotating in a vibration environment. The telescopic locking characteristic of the cable tie itself allows the structure to flexibly adapt to wire harnesses of different diameters, and finally, by tightening the cable tie, the wire harness is firmly bound to the bracket. This achieves reliable fastening while avoiding excessive local stress that could damage the wire harness. Thus, the wire harness fixing structure in this application can reliably fix the target wire harness, which is far superior to the prior art.

[0011] Optionally, the protrusions are bent into a hook shape around the central axis of the tie ring, with the protrusions on both sides of the central axis of the tie ring forming opposite bending directions. In this design, the hook-shaped shape of the bent protrusions can effectively wrap and constrain the wire harness radially outward, much like the coordinated action of multiple tiny claws. The opposite bending design can simultaneously apply a balanced radial clamping force to the wire harness from both sides, which not only greatly enhances the wire harness's resistance to displacement and stability under vibration, effectively suppressing its axial movement and circumferential rotation, but also avoids wire harness skewing and twisting that may be caused by unidirectional force, thus achieving more reliable and uniform fixation under complex working conditions.

[0012] Optionally, the radial dimension of the protrusion gradually decreases from the root to the bent end. In this design, the root of the protrusion with a larger radial dimension can provide a solid and stable mechanical foundation for the entire structure, thereby effectively resisting the reverse force generated when the cable tie is tightened and the impact caused by the vibration of the wire harness, ensuring the long-term reliability of the fixation; in addition, the gradually decreasing size of the bent end can greatly facilitate the smooth sliding of the wire harness into the enclosed space formed by the hook-shaped protrusion during installation, thereby avoiding installation resistance, wire harness skin jamming or scratches caused by sudden protrusions or sharp edges. This makes the wire harness fixing structure in this application more reliable in fixing the target wire harness.

[0013] Optionally, a rounded transition is formed between adjacent surfaces of the bump. In this solution, the rounded transition between adjacent surfaces of the bump can greatly reduce the risk of scratching, cutting, and wear on the insulation layer of the wire harness surface, thereby effectively protecting the integrity of the wire harness and preventing short circuit hazards caused by insulation damage. At the same time, the smooth rounded transition also optimizes the stress distribution of the bump itself, avoiding cracks from the sharp corners and their propagation under repeated stress or vibration conditions. This can significantly improve the fatigue strength and long-term durability of the bump and even the entire support structure, thus enabling the wire harness fixing structure in this application to more reliably fix the target wire harness.

[0014] Optionally, the protrusion is integrally formed with the bracket. In this application, the protrusion integrally formed with the bracket can effectively eliminate the connection weaknesses and loosening risks that may exist due to separate assembly, greatly improving the connection rigidity and reliability of the overall structure under vibration environment; moreover, the integral manufacturing method ensures the smooth transmission of force between the bracket and the protrusion, avoiding stress concentration, thereby enhancing the overall mechanical strength and fatigue resistance, which also makes the wire harness fixing structure in this application more reliably fix the target wire harness.

[0015] Optionally, a pre-drilled hole is formed on the bracket for the cable tie to pass through, and the cable tie is detachably connected to the bracket through the pre-drilled hole. In this solution, the pre-drilled hole on the bracket enables functional separation and quick assembly / disassembly of the cable tie and the bracket. Users can freely select and replace different specifications of cable ties according to the diameter of the wire harness, significantly improving the versatility and adaptability of the entire fixing structure. At the same time, this design allows for maintenance or line changes in the later stages without replacing the entire bracket; simply loosening and replacing the cable tie is sufficient, greatly reducing maintenance costs and time. In addition, the pre-drilled hole provides precise guidance and reliable force support for the threading and tightening of the cable tie, ensuring that the force is evenly distributed when the cable tie is tightened. This also allows the wire harness fixing structure in this application to more reliably fix the target wire harness.

[0016] Optionally, a snap-fit ​​structure is formed on the bracket, and the bracket is detachably snapped onto the target structure through the snap-fit ​​structure. In this solution, by setting the snap-fit ​​structure, the bracket can instantly establish a firm and rigid connection with the target structure such as the vehicle body sheet metal, forming a stable platform without shaking or displacement. In this way, the alternating protrusions set on the bracket can more accurately and effectively limit and support the wire harness radially, preventing its lateral slippage. At the same time, the cable ties can also more stably perform their tightening function, reliably restraining the circumferential movement of the wire harness. This also makes the wire harness fixing structure in this application more reliably fix the target wire harness.

[0017] Optionally, the snap-fit ​​structure is a snap-fit ​​formed on the bracket, with at least two snap-fits arranged radially along the binding ring. In this solution, two or more snap-fits distributed radially along the binding ring can form multiple symmetrical snap-fit ​​points with the target structure, thereby greatly increasing the connection strength and contact area between the bracket and the target structure. This multi-point distributed support makes the connection more stable, effectively resisting vibrations and impacts from different directions, preventing the bracket from shaking or loosening due to insufficient fixation at a single point, and providing a more rigid and torsional-resistant installation base for the wire harness. This also allows the wire harness fixing structure in this application to more reliably fix the target wire harness.

[0018] Optionally, at least two of the buckles distributed radially on the tie ring have opposite elastic deformation directions during the snap-fit ​​process. In this solution, the buckle design with opposite elastic deformation directions constitutes a clever self-centering and anti-loosening mechanism. During snap-fit ​​assembly, the deformation forces in opposite directions can balance each other, ensuring that the bracket is installed stably and correctly, avoiding skewing. After snap-fit ​​is completed, the restoring forces generated by the two buckles act on the slot from different directions simultaneously, forming an inherent, bidirectional locking force. This mechanical symmetry constraint can greatly counteract the unidirectional displacement tendency that may occur under vibration, thereby significantly improving the stability and reliability of the snap-fit. This also allows the wire harness fixing structure in this application to more reliably fix the target wire harness.

[0019] Optionally, at least two sets of clips are provided along the axial direction of the binding ring. In this solution, the two or more sets of clips arranged along the axial direction of the binding ring not only enable a qualitative leap in the connection rigidity between the bracket and the target structure, thus allowing it to withstand greater bending moments and torques, but more importantly, they completely constrain the degrees of freedom of the bracket in all possible directions, ensuring that the bracket remains motionless under any complex working conditions, providing the most solid guarantee for the stable fixation of the wire harness. This also allows the wire harness fixing structure in this application to more reliably fix the target wire harness. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of the wire harness fixing structure in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of the bracket in the embodiments of this application;

[0023] Figure 3 This is a front view of the overall structure of the bracket in the embodiment of this application;

[0024] Figure 4 This is a partial structural diagram of the bracket in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the installation state of the wire harness fixing structure in the embodiments of this application;

[0026] Figure 6 For along Figure 5 Cross-sectional view of line AA in the middle.

[0027] The following are the labeling elements in the figure:

[0028] 101. Bracket; 102. Cable tie; 103. Cable loop; 104. Protrusion; 105. Reserved hole; 106. Buckle; 201. Target harness; 202. Target structure. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] Please refer to the following: Figure 1 , Figure 2 and Figure 3 The present application provides a wire harness fixing structure according to an embodiment. This wire harness fixing structure includes a bracket 101, a cable tie 102, and a protrusion 104. Wherein:

[0034] The bracket 101 is used to connect the target structure 202; the cable tie 102 is connected to the bracket 101 and forms a loop 103 with an adjustable diameter; several protrusions 104 are connected at intervals along the axial direction of the loop 103 on the bracket 101, and all the protrusions 104 are alternately distributed on both sides of the central axis of the loop 103 along the axial direction of the loop 103. In this embodiment, the bracket 101 can be made of commonly used metal materials in the art, such as copper or iron, or it can be made of plastic injection molded into a predetermined shape. In addition, the target structure 202 described in this embodiment can actually be a target sheet metal commonly used in the automotive field, so that when the bracket 101 is connected to the target sheet metal, the target wire harness 201, which is tightened by the cable tie 102, can form a stable connection with the target sheet metal. The cable tie 102 can also be a commonly used cable tie 102 in the art, which will not be described in detail here.

[0035] According to the structure provided in this embodiment, the staggered protrusions 104 can provide multi-point support for the wire harness in the radial direction of the cable tie 103, increasing the contact area and friction, effectively preventing the wire harness from shifting or rotating in a vibration environment. The telescopic locking feature of the cable tie 102 allows the structure to flexibly adapt to wire harnesses of different diameters, and finally, by tightening the cable tie 102, the wire harness is firmly bound to the bracket 101. This achieves reliable fastening while avoiding excessive local stress that could damage the wire harness. Thus, the wire harness fixing structure in this application can reliably fix the target wire harness 201, which is far superior to the prior art.

[0036] It is understood that in this embodiment, the staggered arrangement of the protrusions 104 can be arranged in pairs, thus providing more stable support for the target wire harness 201. Furthermore, the cross-sectional shape of the protrusions 104 in their own protrusion direction is not limited; circular, square, or polygonal shapes commonly used in the art can be selected. Of course, in other embodiments of this application, the multiple protrusions 104 distributed along the axial direction of the tie ring 103 can be further defined as being evenly distributed, thus enabling the wire harness fixing structure in this application to more reliably fix the target wire harness 201.

[0037] In another embodiment of this application, please refer to Figure 4 The protrusion 104 is bent into a hook shape around the central axis of the binding ring 103, with the protrusions 104 on both sides of the central axis of the binding ring 103 forming opposite bending directions. In this embodiment, the hook shape of the protrusion 104 can be achieved by injection molding or casting process, and the bending direction and curvature of the protrusion 104 are determined during the mold design stage. The bent hook structure allows it to wrap and limit the wire harness from the side, while the opposite bending direction constitutes a symmetrical clamping layout.

[0038] According to the structure provided in this embodiment, the hook-shaped bending of the protrusion 104 in this solution can effectively wrap and constrain the outer radial side of the wire harness, just like multiple tiny claws working together. The bending design in opposite directions can simultaneously apply a balanced radial clamping force to the wire harness from both sides, which not only greatly enhances the wire harness's resistance to displacement and stability in a vibration environment and effectively suppresses its axial movement and circumferential rotation, but also avoids wire harness skewness and twisting that may be caused by unidirectional force, thereby achieving more reliable and uniform fixation under complex working conditions.

[0039] It is understood that the specific curvature of the protrusion 104 in this embodiment can be optimized according to the common diameter range of the target wire harness 201, and is not limited to the specific angle shown in the figure. Furthermore, the shape of the hook-shaped end is not strictly limited; it can be a smooth arc transition or a gently sloping hook tip with a guide bevel, to further facilitate the insertion of the wire harness while ensuring clamping force. These shape variations based on the same inventive concept should all be considered to fall within the protection scope of this application.

[0040] In another embodiment of this application, please refer to Figure 4 The radial dimension of the protrusion 104 gradually decreases from the root to the curved end. In this embodiment, the protrusion 104 can be realized by precision forging or injection molding, and the protrusion 104 structure with a specific taper or gradient curve can be directly formed in the mold cavity. This allows the protrusion 104 to have the largest cross-sectional dimension at the root, thereby ensuring its structural strength, while its end gradually narrows and becomes thinner.

[0041] According to the structure provided in this embodiment, the root of the larger radially sized protrusion 104 can provide a solid and stable mechanical foundation for the entire structure, thereby effectively resisting the reverse force generated when the cable tie 102 is tightened and the impact caused by the vibration of the wire harness, ensuring the long-term reliability of the fixation; in addition, the tapered curved end can greatly facilitate the smooth sliding of the wire harness into the enclosed space formed by the hook-shaped protrusion 104 during the installation process, thereby avoiding installation resistance, wire harness skin jamming or scratches caused by sudden protrusions or sharp edges. This makes the wire harness fixing structure in this embodiment more reliable in fixing the target wire harness 201.

[0042] It is understandable that the implementation of "gradually decreasing radial dimensions" in this embodiment can have various variations. First, the dimensional gradient is not limited to a single linear taper; its cross-sectional shape can be a smooth curve transition or a segmented gradient containing multiple stepped platforms, as long as it satisfies the overall shrinking trend from root to tip. Second, the specific parameters of the dimensional change, such as the dimensional ratio of the root and tip, the rate of gradient (i.e., taper), and the proportion of the length of the tapered region to the total length of the protrusion 104, can be adapted to the hardness, surface smoothness, and required balance between guidance and support strength of the target wire harness 201. Finally, the manufacturing process for realizing this tapered structure is not unique; in addition to one-time injection molding, it can also be formed on the substrate through secondary processing methods such as stamping and cutting.

[0043] In another embodiment of this application, please refer to Figure 4The adjacent surfaces of the protrusion 104 form a transition fillet. In this embodiment, the mold cavity used to form the protrusion 104 can be provided with corresponding inner and outer arc transitions, so that all the required fillet structures can be formed at one time. In addition, the protrusion 104 can also be formed on the metal sheet by stamping process, or the sharp edges can be removed after the part is made by secondary processing methods such as chamfering and grinding.

[0044] According to the structure provided in this embodiment, the rounded transition between adjacent surfaces of the protrusion 104 can greatly reduce the risk of scratching, cutting and wear on the insulation layer of the wire harness surface, thereby effectively protecting the integrity of the wire harness and preventing short circuit hazards caused by insulation damage. At the same time, the smooth rounded transition also optimizes the stress distribution of the protrusion 104 itself, avoiding cracks from the sharp corners and their propagation under repeated stress or vibration conditions. This can significantly improve the fatigue strength and long-term durability of the protrusion 104 and even the entire bracket 101 structure, thereby making the wire harness fixing structure in this embodiment more reliably fix the target wire harness 201.

[0045] It is understood that the specific implementation of the "transition fillet" in this embodiment has various variations. First, the fillet does not necessarily exist on every edge of the protrusion 104; its placement can be determined based on the actual contact and stress conditions. For example, it can be preferentially placed at the guiding edge on the wire harness insertion path, or at the connection between the root of the protrusion 104 and the body of the bracket 101 where stress is most easily concentrated. Second, the size of the fillet (i.e., the size of the fillet radius R) is not a fixed value; it can be adaptively adjusted according to the size of the protrusion 104 itself, the brittleness of the material used, the softness of the wire harness sheath, and the requirements for controlling stress concentration.

[0046] In another embodiment of this application, please refer to Figure 4 The protrusion 104 and the bracket 101 are integrally formed. According to the structure provided in this embodiment, the protrusion 104, which is integrally formed with the bracket 101, can effectively eliminate the connection weaknesses and loosening risks that may exist due to separate assembly, and greatly improve the connection rigidity and reliability of the overall structure under vibration environment; moreover, the integral manufacturing method ensures that the force flow is smoothly transmitted between the bracket 101 and the protrusion 104, avoiding stress concentration, thereby enhancing the overall mechanical strength and fatigue resistance. This also makes the wire harness fixing structure in this embodiment more reliably fix the target wire harness 201.

[0047] It is understood that the specific implementation of "one-piece molding" in this embodiment has various variations. First, the material for one-piece molding is not limited to common engineering plastics (such as PA and PBT), but can also be metal materials such as aluminum alloys and zinc alloys, or fiber-reinforced composite materials. The choice mainly depends on the requirements for strength, weight, cost, and environmental resistance. Second, the manufacturing process for one-piece molding is also selective. In addition to injection molding and die casting mentioned above, 3D printing (additive manufacturing) technology can also be used to directly mold complex integral structures. Finally, one-piece molding does not mean that the entire component must be made of completely homogeneous materials. For example, two-material injection molding can be used to form protrusions 104 of different hardness on the substrate of the support 101, or metal inserts can be embedded in the substrate to enhance local strength.

[0048] In another embodiment of this application, please refer to the following: Figure 1 , Figure 2 and Figure 3 A pre-drilled hole 105 is formed on the bracket 101 for the cable tie 102 to pass through, and the cable tie 102 is detachably connected to the bracket 101 through the pre-drilled hole 105. In this embodiment, the diameter of the pre-drilled hole 105 can be slightly larger than the bandwidth of the standard cable tie 102 to ensure that the cable tie 102 can pass through smoothly. The position of the pre-drilled hole 105 is designed in an area on the bracket 101 that can effectively constrain and guide the cable tie 102, usually located near the central axis of the cable loop 103.

[0049] According to the structure provided in this embodiment, the reserved hole 105 on the bracket 101 can realize the functional separation and quick assembly / disassembly of the cable tie 102 and the bracket 101. Users can freely select and replace different specifications of cable ties 102 according to the diameter of the wire harness, which significantly improves the versatility and adaptability of the entire fixing structure. At the same time, this design means that in the later maintenance or line change, it is not necessary to replace the entire bracket 101. It is only necessary to loosen and replace the cable tie 102, which greatly reduces maintenance costs and time. In addition, the reserved hole 105 provides precise guidance and reliable force support for the threading and locking of the cable tie 102, ensuring that the force is evenly distributed when the cable tie 102 is tightened. This also makes the wire harness fixing structure in this embodiment more reliably fix the target wire harness 201.

[0050] It is understood that the specific implementation of the "reserved hole 105" in this embodiment can have various variations. First, the cross-sectional shape of the reserved hole 105 is not limited to a circle; it can also be an ellipse, a rounded rectangle, or other shapes that facilitate the passage and stress of the cable tie 102. Second, the number and arrangement of the reserved holes 105 can also vary. For example, a single large hole can be provided, or multiple small holes can be arranged side by side to form different cable tie paths. In addition, the structure of the edge of the reserved hole 105 can be further optimized, such as by providing guide chamfers or reinforcing ribs to reduce cable tie resistance and improve the structural strength around the hole. Finally, the method of realizing the reserved hole 105 is not limited to injection molding; it can also be formed through subsequent processing methods such as drilling and stamping.

[0051] In another embodiment of this application, please refer to the following: Figure 1 , Figure 2 and Figure 3 A snap-fit ​​structure is formed on the bracket 101, which allows the bracket 101 to be detachably snapped into the target structure 202. In this embodiment, a typical implementation of the bracket 101 snapping into the target structure 202 includes providing elastic locking arms with barbs on both sides or the bottom of the bracket 101. These locking arms can generate elastic deformation when compressed, and return to their original shape after sliding into the mounting position of the target structure 202, thereby achieving a firm mechanical connection.

[0052] According to the structure provided in this embodiment, by setting a snap-fit ​​structure, the bracket 101 can instantly establish a firm rigid connection with the target structure 202 such as the body sheet metal, forming a stable platform that is free from shaking and displacement. In this way, the alternating protrusions 104 set on the bracket 101 can more accurately and effectively limit and support the wire harness from the radial direction, preventing it from sliding laterally. At the same time, the cable tie 102 can also more stably perform its tightening function and reliably constrain the circumferential movement of the wire harness. This also makes the wire harness fixing structure in this embodiment more reliable in fixing the target wire harness 201.

[0053] It is understood that the specific implementation of the "clamping structure" in this embodiment can have various variations. First, the type of clamping structure is not limited to the barbed snap-fit ​​106; it can also be a mushroom-head type, a spring-loaded type, or other mechanical structures capable of forming an elastic clamping connection. Second, the arrangement position and number of clamping structures can vary. For example, they can be arranged around the bracket 101 to form multi-point fixation, or they can be concentrated on a specific side of the bracket 101 to adapt to different installation spaces. In addition, the material selection for the clamping structure is not limited to the same material as the bracket 101 body; metal reinforcing inserts or higher-performance engineering plastics in key areas can be considered. Finally, the guiding design of the clamping structure can be further optimized, such as by adding guide ramps and reducing insertion force, to improve the assembly experience.

[0054] In another embodiment of this application, please refer to the following: Figure 1 , Figure 2 and Figure 3 The snap-fit ​​structure is a snap-fit ​​106 formed on the bracket 101, and at least two snap-fit ​​106 are provided along the radial direction of the tie ring 103. In this embodiment, the snap-fit ​​106 typically includes a cantilever beam structure with a certain degree of elasticity, and a hook or protrusion formed at the end, which can interlock with the corresponding slot or mounting hole on the target structure 202.

[0055] According to the structure provided in this embodiment, two or more buckles 106 distributed radially along the tie ring 103 can form multiple symmetrical snap points with the target structure 202, thereby greatly increasing the connection strength and contact area between the bracket 101 and the target structure 202. This multi-point distributed support makes the connection more stable and can effectively resist vibration and impact from different directions, preventing the bracket 101 from shaking or loosening due to insufficient single-point fixation, and providing a more rigid and torsional-resistant installation base for the wire harness. This also makes the wire harness fixing structure in this embodiment more reliable in fixing the target wire harness 201.

[0056] It is understood that the number of latches 106 in this embodiment is not limited to two. Three, four, or more latches 106 can be provided according to the size of the bracket 101 and the required connection strength. These latches 106 can be distributed symmetrically or asymmetrically in the radial direction. Secondly, the specific shape and structure of the latches 106 can vary. For example, cantilevers of different lengths, hooks of different angles, or latches 106 with different rigidities can be provided at different positions. In addition, the distribution shape of the latches 106 is not limited to a straight line arrangement. They can be arranged in an arc, annular, or other distribution patterns suitable for a specific installation space. Finally, the reinforcement methods of the latches 106 can also be diversified, such as by adding reinforcing ribs, local thickening, or using composite materials to improve the strength and durability of key latches 106.

[0057] In another embodiment of this application, please refer to the following: Figure 1 , Figure 2 and Figure 3 At least two clips 106 distributed radially on the tie 103 have opposite elastic deformation directions during the snapping process. For example, the clips 106 on both sides can be designed to elastically bend and deform towards the central axis of the tie 103 during snapping, or the clips 106 on both sides can be designed to elastically bend and deform away from the central axis. Other structural layouts that can produce opposite deformation directions can also be adopted.

[0058] According to the structure provided in this embodiment, the buckles 106 with opposite elastic deformation directions constitute a clever mechanism for self-centering and preventing loosening. During snap-fit ​​assembly, the deformation forces with opposite directions can balance each other, ensuring that the bracket 101 is installed stably and correctly, avoiding skewing. After snap-fit ​​is completed, the restoring forces generated by the two buckles 106 act on the slot from different directions simultaneously, forming an inherent, bidirectional locking force. This mechanical symmetry constraint can greatly counteract the unidirectional displacement tendency that may occur under vibration, thereby significantly improving the stability and reliability of snap-fit. This also allows the wire harness fixing structure in this application to more reliably fix the target wire harness 201.

[0059] It is understood that multiple pairs of snap fasteners 106 with opposite deformation directions can be designed in this embodiment to cope with more complex stress environments. Furthermore, the specific deformation characteristics of the snap fasteners 106 can be finely controlled by adjusting parameters such as their thickness, length, and material hardness to optimize their deformation force and recovery force. Finally, the structure achieving opposite deformation directions is not limited to a single material; metal reinforcements can be embedded in the key snap fasteners 106, or a two-material injection molding process with different hardnesses can be used.

[0060] In another embodiment of this application, please refer to the following: Figure 1 , Figure 2 and Figure 3 At least two sets of buckles 106 are provided along the axial direction of the binding ring 103. Specifically, in this embodiment, three or more sets of buckles 106 can be provided along the axial direction of the binding ring 103. Each set of buckles 106 includes at least two buckles 106 distributed radially along the binding ring 103, which together constitute a multi-dimensional three-dimensional snap-fit ​​system.

[0061] According to the structure provided in this embodiment, two or more sets of buckles 106 arranged along the axial direction of the tie ring 103 constitute a multi-dimensional three-dimensional snap-fit ​​system. They can simultaneously lock the target structure 202 from different positions on the wire harness axis, thereby upgrading the connection between the bracket 101 and the target structure 202 from a "line" constraint to a "surface" constraint. This design not only makes the connection rigidity a qualitative leap, enabling it to withstand greater bending moments and torques, but more importantly, it completely constrains the degrees of freedom of the bracket 101 in all possible directions, ensuring that the bracket 101 remains motionless under any complex working conditions, providing the most solid guarantee for the ultimate stable fixation of the wire harness. This also makes the wire harness fixing structure in this application more reliable in fixing the target wire harness 201.

[0062] It is understood that the axial distribution of the various sets of snap fasteners 106 in this embodiment can vary. They can be evenly distributed at equal intervals, or they can be distributed with key reinforcements at non-equal intervals based on the force characteristics. Furthermore, different sets of snap fasteners 106 can employ the same or different structural designs. For example, the sets near the load center can use a reinforced structure, while the end sets can use a design with better guidance. Finally, the cooperative working method of the multiple sets of snap fasteners 106 can also be optimized. For example, it can be designed so that different sets snap together sequentially during installation to reduce insertion force and improve installation feel. All these various implementations based on the same inventive concept, using the axial distribution of multiple sets of snap fasteners 106 to construct a three-dimensional fixing system, should be considered to fall within the protection scope of this application.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wire harness fixing structure, characterized in that, include: A support frame is used to connect the target structure. Cable ties are attached to the bracket and form adjustable loops. The bracket has several protrusions connected at intervals along the axial direction of the tie ring, and all the protrusions are alternately distributed on both sides of the central axis of the tie ring along the axial direction of the tie ring.

2. The wire harness fixing structure as described in claim 1, characterized in that: The protrusions are bent into a hook shape around the central axis of the tie, and the protrusions on both sides of the central axis of the tie form opposite bending directions.

3. The wire harness fixing structure as described in claim 2, characterized in that: The radial dimension of the bump gradually decreases from the root to the curved end.

4. The wire harness fixing structure as described in claim 3, characterized in that: The adjacent surfaces of the bump form a transition fillet.

5. The wire harness fixing structure as described in any one of claims 1-4, characterized in that: The protrusion is integrally formed with the bracket.

6. The wire harness fixing structure as described in claim 1, characterized in that: The bracket has a pre-drilled hole for the cable tie to pass through, and the cable tie is detachably connected to the bracket through the pre-drilled hole.

7. The wire harness fixing structure as described in claim 1, characterized in that: A snap-fit ​​structure is formed on the bracket, and the bracket is detachably snapped onto the target structure through the snap-fit ​​structure.

8. The wire harness fixing structure as described in claim 7, characterized in that: The snap-fit ​​structure is a snap fastener formed on the bracket, and at least two snap fasteners are provided along the radial direction of the tie.

9. The wire harness fixing structure as described in claim 8, characterized in that: At least two of the buckles, which are radially distributed on the loop, have opposite elastic deformation directions during the snap-fit ​​process.

10. The wire harness fixing structure as described in any one of claims 8-9, characterized in that: At least two sets of buckles are provided along the axial direction of the tie.

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