Automobile wire harness with pressure-resistant structure

Abstract

The utility model discloses a kind of automobile wiring harness with compression resistance structure belong to automobile wiring harness technical field, including wiring harness main body and compression resistance mechanism, the compression resistance mechanism is sleeved on the surface of wiring harness main body, the compression resistance mechanism sequentially includes inner protective sleeve, support assembly and outer protective sleeve from inside to outside, the wiring harness main body is installed in the inboard of inner protective sleeve, by compression resistance mechanism from inside to outside sequentially set inner protective sleeve, support assembly and outer protective sleeve, this multilayer protection and support combined structure, can form all-round protection to the wiring harness main body of the inboard of inner protective sleeve, when wiring harness is subjected to external pressure effect, outer protective sleeve can first resist external impact, support assembly can effectively disperse stress in cavity, avoid that pressure is directly conducted to wiring harness main body, simultaneously, inner protective sleeve can further isolate wiring harness main body and support assembly, prevent the situation that multiple cable wires inside wiring harness main body appear mutual rubbing extrusion due to compression.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, specifically to an automotive wiring harness with a pressure-resistant structure. Background Technology

[0002] As the core of the automotive electrical network, automotive wiring harnesses are critical connection components formed by crimping copper contact terminals with wires and cables, encasing them in plastic insulation or adding an outer metal shell, and then bundling them together. They bear the core function of transmitting power and signals to various vehicle systems, and their performance directly affects the safety and reliability of the entire vehicle. With the continuous upgrading of automotive functions, especially the popularization of new energy vehicles, the application density of wiring harnesses continues to increase, and the mechanical load tests they face are becoming increasingly severe.

[0003] Existing automotive wiring harnesses generally suffer from insufficient compressive strength. Traditional wiring harnesses often use a simple PVC protective layer or insulating tape wrapping structure, lacking an effective compressive strength structure. Moreover, the wiring harness consists of multiple cables bundled together. When subjected to external pressure, the compressed cables are prone to friction and compression, accelerating the damage and breakage process, and making it difficult to effectively distribute stress. Especially for high-voltage wiring harnesses in new energy vehicles, compressive strength failure may directly lead to a short circuit in the high-voltage system, causing serious safety accidents such as vehicle fires and explosions, posing a significant threat to the lives of occupants. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive wiring harness with a pressure-resistant structure. The pressure-resistant mechanism is a multi-layer protective support structure composed of an inner protective sleeve, a cavity-built-in support component, and an outer protective sleeve. When external pressure is applied, the outer protective sleeve first resists the impact, the support component disperses the stress, and then the inner protective sleeve isolates and protects the wiring harness body, avoiding friction and compression of the cables inside the wiring harness body. This provides all-round protection for the wiring harness body and significantly extends its service life, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive wiring harness with a pressure-resistant structure, comprising a wiring harness body and a pressure-resistant mechanism, wherein the pressure-resistant mechanism is sleeved on the surface of the wiring harness body;

[0006] The pressure-resistant mechanism includes an inner protective sleeve, a support component, and an outer protective sleeve from the inside out. The main body of the wire harness is installed inside the inner protective sleeve. A cavity is formed between the inner and outer protective sleeves, and the support component is disposed in the cavity.

[0007] Preferably, the inner protective sleeve has equidistant limiting holes that cooperate with the main body of the wire harness, and each connecting wire in the main body of the wire harness is respectively inserted into the limiting hole.

[0008] Preferably, the support component includes four reinforcing strips and four sets of pressure-resistant strips. The four reinforcing strips are distributed around the outer wall of the inner protective sleeve, dividing the cavity into four spatial regions. The four sets of pressure-resistant strips are respectively distributed in the four spatial regions.

[0009] Preferably, the two ends of the reinforcing strip are integrally formed with the inner protective sleeve and the outer protective sleeve, respectively, and the two ends of the pressure-resistant strip are also integrally formed and connected with the inner protective sleeve and the outer protective sleeve, respectively.

[0010] Preferably, each group of the compression-resistant strips has a plurality of them, and the compression-resistant strips are arranged in a bent shape.

[0011] Preferably, the inner and outer protective sleeves are embedded with a metal mesh, which is woven from copper and aluminum wires.

[0012] Preferably, the outer protective sleeve has multiple reinforcing rings integrally formed on its outer wall, and the distance between any two adjacent reinforcing rings is equal.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention provides an automotive wiring harness with a pressure-resistant structure. The pressure-resistant mechanism consists of an inner protective sleeve, a support component, and an outer protective sleeve arranged sequentially from the inside out. A cavity is formed between the inner and outer protective sleeves, housing the support component. This multi-layered protection and support structure provides comprehensive protection for the wiring harness body housed within the inner protective sleeve. When the wiring harness is subjected to external pressure, the outer protective sleeve initially resists the impact, while the support component effectively disperses stress within the cavity, preventing direct pressure transmission to the wiring harness body. Simultaneously, the inner protective sleeve further isolates the wiring harness body from the support component, preventing the multiple cables inside the harness from rubbing and squeezing against each other under pressure. This significantly slows down cable damage and breakage, greatly extending the wiring harness's service life.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic plan view of the anti-compression mechanism of this utility model;

[0018] Figure 3This is a schematic diagram of the inner protective sleeve, support assembly, and outer protective sleeve structure of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the inner protective sleeve and metal mesh structure of this utility model.

[0020] The following are the labels in the diagram: 1. Main body of the wire harness; 2. Compression-resistant mechanism; 21. Inner protective sleeve; 22. Support component; 221. Reinforcing strip; 222. Compression-resistant strip; 23. Outer protective sleeve; 3. Limiting hole; 4. Metal mesh; 5. Reinforcing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figures 1-4 The illustrated automotive wiring harness with a pressure-resistant structure includes a wiring harness body 1 and a pressure-resistant mechanism 2, wherein the pressure-resistant mechanism 2 is sleeved on the surface of the wiring harness body 1;

[0023] The pressure-resistant mechanism 2 includes an inner protective sleeve 21, a support component 22, and an outer protective sleeve 23 from the inside to the outside. The wire harness body 1 is installed inside the inner protective sleeve 21. A cavity is formed between the inner protective sleeve 21 and the outer protective sleeve 23. The support component 22 is disposed in the cavity.

[0024] The automotive wiring harness consists of a harness body 1 and a pressure-resistant mechanism 2. The pressure-resistant mechanism 2 is fitted onto the surface of the harness body 1 and consists of an inner protective sleeve 21, a support component 22, and an outer protective sleeve 23, arranged sequentially from the inside to the outside. The harness body 1 is installed inside the inner protective sleeve 21, forming a cavity between the inner and outer protective sleeves 21 and 23. The support component 22 is placed inside the cavity, which is filled with expanding foam to enhance the elasticity between the inner and outer protective sleeves 21 and 23. When the harness body 1 is subjected to external pressure, the outer protective sleeve 23 first contacts and blocks the external pressure impact. Subsequently, the support component 22 inside the cavity disperses and buffers the pressure transmitted there, reducing the pressure transmission inward. 21 further isolates the support component 22 from the wire harness body 1, preventing the support component 22 from directly acting on the wire harness body 1 during stress, thus forming a multi-layered progressive pressure protection system to protect the wire harness body 1 from pressure damage. Through this multi-layered pressure-resistant structural design, the shortcomings of the traditional wire harness body 1, which relies solely on a simple protective layer or tape wrapping, are effectively compensated for. It can resist external pressure in all directions, preventing the internal cables of the wire harness body 1 from rubbing and squeezing each other due to pressure, significantly reducing the probability of cable damage and breakage, extending the service life of the wire harness body 1, and providing basic structural protection for the wire harness body 1, laying the foundation for further improvement of protection performance and improving the reliability of wire harness use.

[0025] The inner protective sleeve 21 has equal-distance limiting holes 3 that cooperate with the wire harness body 1. Each connecting wire in the wire harness body 1 is inserted into the limiting hole 3 respectively.

[0026] Limiting holes 3 are made at equal intervals on the inner protective sleeve 21 to cooperate with the main body 1 of the wire harness. Each connecting wire in the main body 1 is inserted into the limiting hole 3 respectively. The limiting hole 3 plays a role in fixing and separating each connecting wire. When the wire harness is subjected to external force pulling, vibration or pressure, the limiting hole 3 can limit the displacement of each connecting wire, avoid the connecting wires from getting tangled or misaligned when under force, and ensure that each connecting wire maintains a relatively stable position in its own limiting space.

[0027] The orderly arrangement and independent fixing of the internal connecting wires of the wire harness body 1 are achieved, effectively preventing problems such as insulation layer damage and signal transmission interference caused by mutual friction, squeezing or entanglement of the connecting wires, and improving the stability and accuracy of the wire harness signal transmission. The design of the equally spaced limiting holes 3 ensures that each connecting wire is subjected to uniform force when under stress, avoiding damage to local connecting wires due to excessive force, further extending the service life of the wire harness body 1, and also facilitating the later inspection and maintenance of the wire harness body 1, reducing the difficulty of inspection and maintenance.

[0028] The support component 22 includes four reinforcing strips 221 and four sets of pressure-resistant strips 222. The four reinforcing strips 221 are distributed around the outer wall of the inner protective sleeve 21, and the four reinforcing strips 221 divide the cavity into four spatial regions. The four sets of pressure-resistant strips 222 are respectively distributed in the four spatial regions.

[0029] The support component 22 includes four reinforcing strips 221 and four sets of pressure-resistant strips 222. The four reinforcing strips 221 are distributed around the outer wall of the inner protective sleeve 21, dividing the cavity between the inner protective sleeve 21 and the outer protective sleeve 23 into four independent spatial regions. The four sets of pressure-resistant strips 222 are respectively distributed in these four regions. When external pressure is transmitted to the cavity through the outer protective sleeve 23, it first acts on the reinforcing strips 221. The reinforcing strips 221 resist part of the pressure with their own structural strength, and at the same time, disperse the remaining pressure to the pressure-resistant strips 222 in their respective regions. The pressure-resistant strips 222 in the four regions are simultaneously stressed, and together buffer and disperse the pressure, avoiding the pressure from concentrating in a certain part of the cavity, thereby reducing the pressure transmitted to the inner protective sleeve 21 and the wire harness body 1.

[0030] By reinforcing the design of the space area by the reinforcing strip 221 and the pressure-resistant strip 222, the pressure distribution capability of the support component 22 is made more targeted and uniform, which greatly improves the pressure resistance of the support component 22 and can cope with greater external pressure. The setting of four independent space areas avoids the disordered transmission of pressure in the cavity, reduces the risk of excessive local pressure causing the protective structure to fail, and further enhances the protection effect on the main body of the wire harness 1.

[0031] The two ends of the reinforcing strip 221 are integrally formed with the inner protective sleeve 21 and the outer protective sleeve 23, respectively; the two ends of the pressure-resistant strip 222 are also integrally formed and connected with the inner protective sleeve 21 and the outer protective sleeve 23, respectively.

[0032] The two ends of the reinforcing strip 221 are integrally formed with the inner protective sleeve 21 and the outer protective sleeve 23, respectively. The two ends of the pressure-resistant strip 222 are also integrally formed with the inner protective sleeve 21 and the outer protective sleeve 23. This integrally formed structure makes the reinforcing strip 221, the pressure-resistant strip 222 and the inner and outer protective sleeves 23 form a solid whole. When subjected to external pressure, the pressure can be quickly and evenly transmitted between the components through the integrally formed connection parts, avoiding the interruption of pressure transmission due to loosening or breakage of the connection parts. This ensures that the reinforcing strip 221 and the pressure-resistant strip 222 can stably play the role of resisting and dispersing pressure, and also enhances the structural stability of the entire pressure-resistant mechanism 2, preventing relative displacement of the components during the stress process.

[0033] The one-piece molding connection method significantly improves the connection strength between the components of the pressure-resistant mechanism 2, avoiding problems such as loosening and falling off that are prone to occur in traditional connection methods, and extending the service life of the pressure-resistant mechanism 2; pressure can be transmitted and distributed more smoothly between the components, improving the pressure handling efficiency of the pressure-resistant mechanism 2 and enhancing the overall pressure resistance performance.

[0034] Each set of compression strips 222 has several units, and the compression strips 222 are arranged in a bent shape;

[0035] Each set of pressure-resistant strips 222 consists of several pieces and is bent. When external pressure is transmitted to the pressure-resistant strips 222, the bent structure can absorb and buffer the pressure through its own deformation. Several pressure-resistant strips 222 work together to form a multi-point, multi-directional pressure buffering system. At the same time, the setting of several pressure-resistant strips 222 increases the contact points of the pressure action, so that the pressure can be more evenly distributed on the pressure-resistant strips 222, and avoids damage to a single pressure-resistant strip 222 due to excessive force.

[0036] The design of the bent pressure-resistant strip 222 significantly improves the pressure buffering capacity of the pressure-resistant strip 222, enabling it to better cope with external pressures of different directions and intensities, further enhancing the pressure resistance of the support component 22. The arrangement of multiple pressure-resistant strips 222 increases the redundancy of the pressure-resistant mechanism 2, ensuring that even if some pressure-resistant strips 222 are damaged, the remaining pressure-resistant strips 222 can still continue to function, improving the reliability of the wire harness. At the same time, the bent structure has a certain recovery ability after deformation, and can return to its original shape after the pressure is removed, ensuring that the pressure-resistant mechanism 2 can be reused multiple times, extending its service life.

[0037] The inner protective sleeve 21 and the outer protective sleeve 23 are embedded with a metal mesh 4, which is woven with copper wire and aluminum wire.

[0038] The inner protective sleeve 21 and the outer protective sleeve 23 are embedded with a metal mesh 4 made of interwoven copper and aluminum wires. The metal mesh 4, with the good ductility and strength of copper and aluminum wires, can enhance the structural strength of the inner protective sleeve 21 and the outer protective sleeve 23. When subjected to external impact or compression, the metal mesh 4 can play a supporting role and reduce the degree of deformation of the inner protective sleeve 21 and the outer protective sleeve 23. At the same time, the interwoven structure of copper and aluminum wires gives the metal mesh 4 good conductivity, which can shield external electromagnetic interference to a certain extent and prevent external electromagnetic signals from affecting the signal transmission inside the wire harness body 1. In addition, the metal mesh 4 can also improve the wear resistance and corrosion resistance of the protective sleeve.

[0039] The embedding of the metal mesh 4 significantly improves the structural strength and deformation resistance of the inner and outer protective sleeves 23, enhances the protective performance of the entire pressure-resistant mechanism 2, and enables the wire harness to withstand stronger external impacts and compression. The electromagnetic shielding function ensures the stability and accuracy of signal transmission of the wire harness body 1, avoids problems such as signal distortion and transmission interruption caused by electromagnetic interference, and extends the service life of the wire harness body 1.

[0040] The outer protective sleeve 23 has multiple reinforcing rings 5 ​​integrally formed on its outer wall, and the distance between any two adjacent reinforcing rings 5 ​​is equal.

[0041] Multiple reinforcing rings 5 ​​are integrally formed on the outer protective sleeve 23 with equal spacing. The reinforcing rings 5 ​​and the outer protective sleeve 23 form a solid whole. When the outer protective sleeve 23 is subjected to external radial pressure or axial tension, the reinforcing rings 5 ​​can enhance the structural stability of the outer protective sleeve 23 at the stress point by virtue of their own ring structure strength, and reduce the deformation of the outer protective sleeve 23. The equal spacing design makes the strength of each part of the outer protective sleeve 23 uniformly improved, avoiding local areas from being damaged due to insufficient strength. At the same time, the reinforcing rings 5 ​​can also prevent the outer protective sleeve 23 from bending excessively to a certain extent.

[0042] The reinforcement ring 5 further enhances the structural strength and deformation resistance of the outer protective sleeve 23, enabling it to better resist external pressure and tension, and improving the compressive and tensile performance of the entire start-up wiring harness. The equidistant distribution ensures uniform strength in all parts of the outer protective sleeve 23, reduces the risk of local damage, extends the service life of the outer protective sleeve 23, and improves the safety and reliability of automotive wiring harness use.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automotive wiring harness with a pressure-resistant structure, characterized in that: It includes a wire harness body (1) and a pressure-resistant mechanism (2), wherein the pressure-resistant mechanism (2) is sleeved on the surface of the wire harness body (1); The pressure-resistant mechanism (2) includes an inner protective sleeve (21), a support component (22) and an outer protective sleeve (23) from the inside to the outside. The wire harness body (1) is installed inside the inner protective sleeve (21). A cavity is formed between the inner protective sleeve (21) and the outer protective sleeve (23). The support component (22) is disposed in the cavity.

2. The automotive wiring harness with a pressure-resistant structure according to claim 1, characterized in that: The inner protective sleeve (21) has equal-distance limiting holes (3) that cooperate with the wire harness body (1), and each connecting wire in the wire harness body (1) is respectively inserted into the limiting hole (3).

3. The automotive wiring harness with a pressure-resistant structure according to claim 2, characterized in that: The support component (22) includes four reinforcing strips (221) and four sets of pressure-resistant strips (222). The four reinforcing strips (221) are distributed around the outer wall of the inner protective sleeve (21). The four reinforcing strips (221) divide the cavity into four spatial regions, and the four sets of pressure-resistant strips (222) are respectively distributed in the four spatial regions.

4. The automotive wiring harness with a pressure-resistant structure according to claim 3, characterized in that: The two ends of the reinforcing strip (221) are integrally formed with the inner protective sleeve (21) and the outer protective sleeve (23), respectively. Similarly, the two ends of the pressure-resistant strip (222) are integrally formed and connected with the inner protective sleeve (21) and the outer protective sleeve (23), respectively.

5. The automotive wiring harness with a pressure-resistant structure according to claim 4, characterized in that: Each group of the compression strips (222) is provided with a plurality of them, and the compression strips (222) are arranged in a bent shape.

6. The automotive wiring harness with a pressure-resistant structure according to claim 5, characterized in that: The inner protective sleeve (21) and the outer protective sleeve (23) are inlaid with metal mesh (4), which is woven with copper wire and aluminum wire.

7. The automotive wiring harness with a pressure-resistant structure according to claim 6, characterized in that: The outer protective sleeve (23) has multiple reinforcing rings (5) integrally formed on its outer wall, and the distance between any two adjacent reinforcing rings (5) is equal.

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