Wire threading structure and vehicle

Abstract

The application relates to a threading structure and a vehicle, and belongs to the technical field of wiring harness installation, which comprises a threading box and a sealing piece; wherein the threading box comprises a lower shell and an upper shell, the lower shell is used for being mounted to a cabin framework, the upper shell is used for being connected with the lower shell, a threading cavity is formed between the upper shell and the lower shell, and the sealing piece is used for sealing the gap between the threading box and a cabin heat insulation pad. The wiring harness is centrally stored and protected by the threading box. The sealing piece blocks the gap between the threading box and the heat insulation pad, blocks the transmission of noise and vibration, improves the NVH performance, prevents dust and water vapor from entering, makes the cabin layout neat and beautiful, and solves the problems of internal disorder of the cabin caused by the traditional wiring harness through holes.

Description

Technical Field

[0001] This application relates to the technical field of wiring harness installation, and more particularly to a wiring structure and vehicle. Background Technology

[0002] During vehicle production, wiring harnesses need to be installed. In particular, in some vehicles with a dual front bulkhead structure, the wiring harnesses in the engine compartment need to pass through the engine compartment heat insulation pad mounting plate. Since the diameter of the engine compartment wiring harnesses varies among different vehicle configurations, in order to adapt to the installation requirements of various wiring harnesses, existing technologies usually reserve through holes for the engine compartment wiring harness assembly on the engine compartment heat insulation pad mounting plate so that the wiring harnesses can be smoothly passed through and arranged, ensuring the normal connection and operation of the vehicle's electrical system.

[0003] However, the aforementioned existing technical solutions have obvious drawbacks: the wiring harness through holes reserved on the engine compartment heat insulation pad mounting plate will damage the integrity of the small front bulkhead structure. On the one hand, it will damage the structural sealing of the engine compartment area, thereby affecting the overall NVH (Noise, Vibration, Harshness) performance of the vehicle, and exacerbating the transmission of noise and vibration during vehicle operation. On the other hand, the exposed through holes and the messy arrangement of the surrounding wiring harness will seriously affect the aesthetics of the engine compartment interior and will not meet the requirements of the refined design of the overall vehicle appearance and structure. Utility Model Content

[0004] This application addresses, to at least some extent, one of the technical problems in the related art.

[0005] Therefore, this application aims to provide a wiring structure and vehicle that centrally stores and protects wiring harnesses through a wiring box. A sealant blocks the gap between the wiring box and the heat insulation pad, blocking noise and vibration transmission, improving NVH performance, preventing dust and moisture from entering, and making the engine compartment layout neat and aesthetically pleasing. This solves the problems of clutter inside the engine compartment caused by traditional wiring harness through-holes.

[0006] To achieve the above objectives, in a first aspect, this application provides a threading structure, comprising: The junction box includes: Lower housing, the lower housing being mounted to the nacelle frame; An upper housing is provided for connection with the lower housing, and a threading cavity is formed between the upper housing and the lower housing. A sealing element for sealing the gap between the wiring box and the cabin insulation pad.

[0007] In this technical solution, the wiring structure achieves stable fixation of the wiring box within the engine compartment through the installation and cooperation of the lower housing and the engine compartment frame, providing basic support for the wiring harness arrangement. The wiring cavity formed by the upper and lower housings can centrally store and protect the passing wiring harness, preventing it from being directly exposed to the complex environment of the engine compartment and thus avoiding interference or damage. The sealing element effectively seals the gap between the wiring box and the engine compartment heat insulation pad, blocking the transmission path of noise and vibration inside and outside the engine compartment, significantly improving the overall NVH (noise, vibration, and harshness) performance of the vehicle and enhancing ride comfort. On the other hand, it fills the structural gaps, preventing dust, moisture, and other impurities from entering the engine compartment, while also making the engine compartment layout more organized and improving its aesthetics, solving the problems of clutter inside the engine compartment caused by traditional wiring harness through-holes.

[0008] In some embodiments of this application, the lower housing is provided with an installation structure for connecting the wiring box to the cabin frame.

[0009] In the technical solution, an installation structure is set for the lower housing within the wiring harness structure, clearly defining the connection carrier between the wiring box and the engine compartment frame. This provides a precise implementation component for the installation of the wiring box, preventing installation position displacement or instability within the engine compartment. Through this installation structure, the wiring box can be firmly integrated with the engine compartment frame, ensuring that it will not loosen or shift during vehicle operation, even under conditions such as bumps and vibrations. This guarantees the stability of the internal wiring harness position, preventing friction and pulling caused by wiring box movement, and reducing the risk of wiring harness damage. Simultaneously, the clear installation structure simplifies the wiring box assembly process, improves installation efficiency on the production line, reduces assembly errors, and lays a stable structural foundation for the subsequent sealing components to perform their sealing function.

[0010] In some embodiments of this application, the mounting structure includes a mounting buckle disposed on the side of the lower housing opposite to the upper housing, and the mounting buckle is used to engage with a slot on the naval frame.

[0011] In the technical solution, the installation structure is designed with mounting clips, located on the side of the lower housing opposite to the upper housing. This allows the junction box to connect to the engine compartment frame via a snap-fit ​​method, simplifying assembly. Workers simply align the mounting clips with the slots on the engine compartment frame and press to secure the junction box, significantly reducing assembly time and improving production efficiency. Furthermore, the fit between the clips and slots provides excellent connection stability, withstanding vibrations and impacts during vehicle operation, ensuring the long-term stability of the junction box. In addition, the snap-fit ​​structure facilitates later maintenance and disassembly. When it is necessary to inspect the wiring harness or replace the junction box, the clips can be easily detached from the slots, reducing maintenance difficulty and costs.

[0012] In some embodiments of this application, the mounting structure includes a mounting plate disposed on one side of the wiring box in the width direction, the side of the mounting plate facing the nacelle frame being flush with the side of the lower shell facing the nacelle frame; and a mounting hole is provided through the mounting plate.

[0013] In this technical solution, the mounting plate is flush with the corresponding side of the lower shell on the side facing the nacelle frame. This ensures a tighter fit between the wiring box and the nacelle frame, preventing tilting or gaps after installation due to protrusions or depressions in the mounting plate. This guarantees uniform stress distribution across the wiring box and improves structural stability. The through-holes on the mounting plate allow for a rigid connection between the wiring box and the nacelle frame using bolts or other fasteners. This connection method offers higher strength and is suitable for scenarios with strong vibrations within the nacelle and higher requirements for connection reliability, effectively preventing loosening of the wiring box during long-term use. Furthermore, the mounting plate is positioned on one side of the wiring box's width, without occupying space in the wiring cavity or affecting wire harness installation and sealing, thus balancing connection stability and structural practicality.

[0014] In some embodiments of this application, the sealing element is a sponge strip, which is attached to both sides of the wiring box in the width direction and the side away from the cabin frame.

[0015] In this technical solution, the sponge strip effectively seals the critical gap between the junction box and the engine compartment heat insulation pad. The sponge strip possesses excellent elasticity and sealing properties. After the junction box is installed, the sponge strip deforms under pressure, tightly filling the gap between the junction box and the heat insulation pad, completely blocking the transmission channels of noise and vibration, further optimizing the overall vehicle NVH performance. Simultaneously, it prevents dust, rainwater, and other impurities from entering the engine compartment, protecting the wiring harness and engine compartment components. Furthermore, the sponge strip is made of soft material, preventing scratch damage to the junction box or heat insulation pad during assembly. It also possesses a certain degree of aging resistance and high / low temperature resistance, adapting to the complex temperature and environmental changes within the engine compartment, maintaining a good sealing effect over the long term, and avoiding performance degradation caused by seal failure.

[0016] In some embodiments of this application, the sealing element is a sponge block, and the sponge block has a through groove for the wiring box to pass through, and the wiring box is in contact with the inner wall of the through groove of the sponge block.

[0017] In this technical solution, the sponge block provides a comprehensive, enveloping seal between the wiring box and the sealing components, effectively isolating noise, moisture, and dust from both inside and outside the engine compartment. This minimizes the impact of external factors on the engine compartment's interior, improving the overall vehicle's NVH performance and extending component lifespan. The slotted design of the sponge block positions the wiring box, preventing displacement after installation and ensuring relative stability between the wiring box and the engine compartment's heat insulation pad. Furthermore, the sponge block's simple structure allows for easy installation; simply pass the wiring box through the slot. Its soft material also cushions vibrations and impacts between the wiring box and the heat insulation pad, reducing component wear and balancing sealing performance with structural protection.

[0018] In some embodiments of this application, the upper housing and the lower housing are connected by a connecting snap.

[0019] In this technical solution, the assembly and disassembly of the upper and lower housings are more convenient. No tools are needed; workers can manually engage and disengage the clips, significantly improving the assembly efficiency of the wiring box. This is especially beneficial during mass assembly on the production line, effectively shortening working hours and reducing production costs. The connecting clips offer excellent connection reliability, ensuring a tight fit between the upper and lower housings after engagement. This prevents gaps that could expose or interfere with the wiring harness inside the cavity, while also preventing external impurities from entering and contaminating the harness. Furthermore, when it is necessary to inspect the wiring harness inside the cavity, the connecting clips can be quickly opened to separate the upper and lower housings without damaging the structure. After inspection, the clips can be re-engaged. This simple and efficient operation reduces the difficulty of later maintenance and ensures convenient and timely wiring harness inspection.

[0020] In some embodiments of this application, the lower housing has multiple rope-threading holes.

[0021] In this technical solution, the lanyard holes provide convenient conditions for securing the wire harness. In practical applications, cable ties or other ropes can be passed through the lanyard holes to neatly bundle and secure the wire harness within the wiring cavity, preventing it from moving around freely. During vehicle operation, if the wire harness moves, it may rub against other components, potentially damaging the insulation layer and causing short circuits. The lanyard holes combined with cable ties effectively prevent such problems, protecting the wire harness and improving the reliability of the electrical system. Furthermore, multiple lanyard holes can be flexibly used according to the number and arrangement of the wire harnesses, enabling categorization and organization. This results in a more organized layout within the wiring cavity, facilitating quick identification and troubleshooting of wire harness issues during later maintenance, improving maintenance efficiency. Additionally, it avoids the problem of messy wire harnesses obstructing seal installation or affecting sealing performance.

[0022] In addition, this application also provides a vehicle comprising: a body and a wiring harness for mounting to the body, wherein the above-described wiring structure is mounted on the body; at least one strand of the wiring harness passes through the wiring cavity of the wiring box.

[0023] In this technical solution, the wiring harnesses passing through the junction box are centrally protected and organized, preventing them from being directly exposed to vibration, high temperatures, and impurities in the engine compartment. This reduces the risk of harness damage and ensures the stable operation of the vehicle's electrical system. The sealed design of the wiring structure effectively improves the vehicle's NVH performance, reduces engine compartment noise entering the vehicle, improves the driving experience, and makes the wiring harness arrangement inside the engine compartment more aesthetically pleasing, meeting the requirements of refined vehicle design. Furthermore, this wiring structure is compatible with wiring harnesses of different diameters, eliminating the need to design separate wiring harness through-holes for different vehicle configurations. This improves component commonality, reduces vehicle R&D and production costs, simplifies the assembly line process, increases production efficiency, and facilitates mass production and market promotion of vehicles.

[0024] In some embodiments of this application, a cabin insulation pad and a cabin frame are also included; the cabin insulation pad is connected to the cabin frame; The cabin heat insulation pad has a through-hole, the wiring structure is located at the mounting groove, and the sealing element seals the gap between the mounting groove and the wiring box.

[0025] In this technical solution, the vehicle is equipped with an engine compartment heat insulation pad and a engine compartment frame. Mounting grooves are created in the heat insulation pad, allowing the wiring structure to be positioned within these grooves. This ensures a seamless integration between the wiring structure and the heat insulation pad, preventing the wiring structure from protruding or recessing and affecting the overall layout of the engine compartment, thus improving its aesthetics. Seals seal the gap between the mounting groove and the wiring box, further enhancing the sealing effect and completely blocking the transmission paths of noise, moisture, and dust. This maximizes the vehicle's NVH performance, protects the wiring harness and components within the engine compartment from external environmental corrosion, and extends their service life. Simultaneously, the engine compartment heat insulation pad itself provides insulation. Combined with the sealed design of the wiring structure, this reduces heat loss from the engine compartment and prevents the impact of low external temperatures on engine compartment components. This optimizes the engine compartment thermal management system, ensuring that all vehicle components operate at suitable temperatures, improving overall vehicle performance and reliability. Furthermore, because of the elastic seals, the size of the mounting grooves does not need to be particularly precise, reducing manufacturing complexity.

[0026] As can be seen from the above technical solutions, additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the threading structure according to the embodiments of this application; Figure 2 This is a schematic diagram of the overall structure of the threading structure according to an embodiment of this application from another perspective. Figure 3This is a schematic diagram of the overall structure of the lower shell in the wiring structure according to the embodiments of this application; Figure 4 This is a schematic diagram of the overall structure of the upper shell in the threading structure according to the embodiments of this application; Figure 5 This is a schematic diagram of the overall structure of the sealing element in the threading structure according to an embodiment of this application.

[0028] In the above figures: 100, lower housing; 200, upper housing; 300, seal; 400, mounting buckle; 500, mounting plate; 501, mounting hole; 600, connecting buckle; 700, rope hole. Detailed Implementation

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments. It should be noted that in the automotive industry, wiring harnesses need to be installed during vehicle production. Especially in some vehicles with a dual front bulkhead structure, the wiring harness in the engine compartment needs to pass through the engine compartment heat insulation pad mounting plate during the layout process. Since the diameter of the engine compartment wiring harness varies among different vehicle configurations, in order to adapt to the installation requirements of various wiring harnesses, existing technologies usually reserve through holes for the engine compartment wiring harness assembly on the engine compartment heat insulation pad mounting plate so that the wiring harness can be smoothly passed through and arranged, ensuring the normal connection and operation of the vehicle's electrical system.

[0031] In the existing technology, the wiring harness through holes reserved on the engine compartment heat insulation pad mounting plate will cause damage to the integrity of the small front bulkhead structure. On the one hand, it will damage the structural sealing of the engine compartment area, thereby affecting the NVH (noise, vibration and harshness) performance of the whole vehicle, and aggravating the transmission of noise and vibration during vehicle operation. On the other hand, the exposed through holes and the messy arrangement of the surrounding wiring harness will seriously affect the aesthetics of the engine compartment interior and will not meet the requirements of the refined design of the overall vehicle appearance and structure.

[0032] Based on this, this application proposes a wiring structure and vehicle that centrally stores and protects the wiring harness through a wiring box. A sealant blocks the gap between the wiring box and the heat insulation pad, blocking noise and vibration transmission, improving NVH performance, preventing dust and moisture from entering, and making the engine compartment layout neat and aesthetically pleasing. This solves the problems of clutter inside the engine compartment caused by traditional wiring harness through-holes.

[0033] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0034] Please refer to all the accompanying drawings. In one illustrative embodiment of the wiring structure and vehicle of this application, the wiring structure includes a wiring box for the wire harness to pass through, thereby storing and protecting the wire harness and preventing the wire harness from shifting inside the vehicle due to vibration.

[0035] In some embodiments, the wiring box includes a lower housing 100 and an upper housing 200; wherein the lower housing 100 is used for mounting to the naval frame; the upper housing 200 is used for connecting to the lower housing 100, and a wiring cavity is formed between the upper housing 200 and the lower housing 100. The upper housing 200 and the lower housing 100 are separately arranged, so when installing the wire harness, it is not necessary to pass the end of the wire harness directly through the wiring box. Instead, the middle section of the wire harness can be placed directly inside the lower housing 100, and then the upper housing 200 is fastened to complete the installation of the wiring box, so that the wire harness is located inside the wiring box.

[0036] In some embodiments, the wiring structure further includes a seal 300 for sealing the gap between the wiring box and the cabin insulation pad.

[0037] This application utilizes the aforementioned solution to achieve stable fixation of the wiring box within the engine compartment through the installation and cooperation of the lower housing 100 with the engine compartment frame, providing basic support for the wiring harness arrangement. The wiring cavity formed by the upper housing 200 and the lower housing 100 can centrally store and protect the passing wiring harness, preventing it from being directly exposed to the complex environment of the engine compartment and subject to interference or damage. The sealing element 300 effectively seals the gap between the wiring box and the engine compartment heat insulation pad, blocking the transmission path of noise and vibration inside and outside the engine compartment, significantly improving the overall NVH (noise, vibration, and harshness) performance of the vehicle and enhancing ride comfort. Furthermore, it fills structural gaps, preventing dust, moisture, and other impurities from entering the engine compartment, while also making the engine compartment layout more organized and improving its aesthetics, thus solving problems such as clutter inside the engine compartment caused by traditional wiring harness through-holes.

[0038] Furthermore, one side of the lower housing 100 in the thickness direction is provided with an opening, which extends through both ends of the lower housing 100 in the length direction, and the wire harness is placed inside the lower housing 100 through the opening of the lower housing 100.

[0039] The upper housing 200 has an opening on one side in the thickness direction, and the opening extends through both ends of the upper housing 200 in the length direction.

[0040] It is understandable that, in order to ensure the integrity of the junction box, when the opening of the upper housing 200 is opposite to the opening of the lower housing 100, the length extension directions of the upper housing 200 and the lower housing 100 are the same.

[0041] Specifically, the cross-section of the junction box is rectangular, and the area of ​​the cross-section at any position of the junction box is the same (understandably, due to manufacturing process, there may be some error).

[0042] In some embodiments, the lower housing 100 is provided with an installation structure for connecting the wiring box to the engine compartment frame. The installation structure on the lower housing 100 clearly defines the connection carrier between the wiring box and the engine compartment frame, providing a precise implementation component for the installation of the wiring box and preventing misalignment or instability of the wiring box within the engine compartment. This installation structure ensures the wiring box is firmly attached to the engine compartment frame, guaranteeing that it will not loosen or shift during vehicle operation, even under conditions of bumps and vibrations. This ensures the stability of the internal wiring harness position, preventing friction and pulling caused by wiring box movement, and reducing the risk of wiring harness damage. Simultaneously, the clear installation structure simplifies the wiring box assembly process, improves installation efficiency on the production line, reduces assembly errors, and lays a stable structural foundation for the subsequent sealing function of the sealing element 300.

[0043] In some embodiments, the mounting structure includes a mounting clip 400, which is disposed on the side of the lower housing 100 opposite to the upper housing 200. The mounting clip 400 is used to engage with a slot on the nacelle frame. The mounting structure is designed with a mounting clip 400, positioned on the side of the lower housing 100 opposite to the upper housing 200, allowing the connection between the wiring box and the nacelle frame to be made via a snap-fit ​​method. This simplifies assembly; workers only need to align the mounting clip 400 with the slot on the nacelle frame and press it to secure the box, significantly reducing assembly time and improving production efficiency. Furthermore, the engagement between the clip and the slot provides good connection stability, withstanding vibrations and impacts during vehicle operation, ensuring the long-term stability of the wiring box. In addition, the snap-fit ​​structure facilitates later maintenance or disassembly. When it is necessary to inspect the wiring harness or replace the wiring box, the clip can be easily separated from the slot, reducing maintenance difficulty and cost.

[0044] Understandably, the 400 mounting clip is a flexible clip, which can be pulled out forcefully in the opposite direction after installation, so that it can be removed and reinstalled if the installation is incorrect.

[0045] In some embodiments, the mounting structure includes a mounting plate 500, which is disposed on one side of the wiring box in the width direction. The side of the mounting plate 500 facing the nacelle frame is flush with the side of the lower housing 100 facing the nacelle frame. A mounting hole 501 is provided through the mounting plate 500. The flush alignment of the side of the mounting plate 500 facing the nacelle frame with the corresponding side of the lower housing 100 allows for a tighter fit between the wiring box and the nacelle frame, preventing tilting or gaps in the wiring box after installation due to protrusions or depressions in the mounting plate 500. This ensures uniform stress distribution throughout the wiring box and improves structural stability. The through mounting hole 501 on the mounting plate 500 allows for a rigid connection between the wiring box and the nacelle frame using bolts or other fasteners. This connection method offers higher strength and is suitable for scenarios with strong vibrations within the nacelle and higher requirements for connection reliability, effectively preventing the wiring box from loosening during long-term use. Meanwhile, the mounting plate 500 is located on one side of the wire box in the width direction, which will not occupy the wire passage space, nor will it affect the wire harness passage and the installation of the sealing component 300, thus taking into account both connection stability and structural practicality.

[0046] Specifically, there can be multiple mounting plates 500, the number of which can be selected according to actual needs. The structure can be installed by passing bolts or screws through the mounting holes 501 and fixing it to the nacelle frame.

[0047] Furthermore, the mounting plate 500 and the mounting clip 400 can be installed simultaneously. During installation, the mounting clip 400 is used for pre-installation, and then bolts or screws are used to fix the lower shell 100 to the cabin frame through the mounting holes 501 on the mounting plate 500, which reduces the installation difficulty while ensuring the stability of the structural installation.

[0048] In some embodiments, the seal 300 is a sponge strip, which adheres to both sides of the junction box in the width direction and the side facing away from the engine compartment frame. The sponge strip effectively seals the critical gap area between the junction box and the engine compartment heat insulation pad. The sponge strip possesses good elasticity and sealing properties. After the junction box is installed, the sponge strip deforms due to compression, tightly filling the gap between the junction box and the heat insulation pad, completely blocking the transmission path of noise and vibration, further optimizing the overall vehicle NVH performance, and preventing dust, rainwater, and other impurities from entering the engine compartment, protecting the wiring harness and engine compartment components. Furthermore, the sponge strip is made of soft material, preventing scratch damage to the junction box or heat insulation pad during assembly, and possesses certain resistance to aging and high / low temperatures, adapting to complex temperature and environmental changes within the engine compartment, maintaining a good sealing effect over a long period, and avoiding performance degradation due to seal 300 failure.

[0049] In some embodiments, the sealing element 300 is a sponge block with a through groove for the wiring box to pass through. The wiring box fits snugly against the inner wall of the through groove. The sponge block provides a comprehensive, enveloping seal between the wiring box and the sealing element 300, effectively isolating noise, moisture, and dust from inside and outside the engine compartment, minimizing the impact of external factors on the engine compartment, and improving the overall vehicle NVH performance and component lifespan. The through groove design of the sponge block positions the wiring box, preventing displacement after installation and ensuring the relative stability of the wiring box and the engine compartment heat insulation pad. Furthermore, the sponge block has a simple structure; installation is straightforward, requiring only the wiring box to pass through the through groove. The soft material of the sponge block cushions vibrations and impacts between the wiring box and the heat insulation pad, reducing component wear and balancing sealing performance with structural protection.

[0050] Understandably, since the lower shell 100 needs to fit the cabin frame, neither the foam block nor the foam strip will be located between the lower shell 100 and the cabin frame.

[0051] Furthermore, the seal 300 is preferably made of sponge material because it has excellent sound absorption properties and large deformation, allowing for adaptable installation even with gaps of varying sizes between the cabin insulation pad and the junction box. However, the seal 300 in this application can also be made of materials such as rubber.

[0052] In some embodiments, the upper housing 200 and the lower housing 100 are connected by a connecting clip 600. The assembly and disassembly of the upper housing 200 and the lower housing 100 are more convenient, requiring no tools; workers can manually engage and disengage the clips, significantly improving the assembly efficiency of the wiring box. This is especially beneficial during batch assembly on a production line, effectively shortening working hours and reducing production costs. The connecting clip 600 provides excellent connection reliability, ensuring a tight fit between the upper housing 200 and the lower housing 100 after engagement, preventing gaps that could expose or interfere with the wiring harness inside the wiring cavity, and preventing external impurities from entering and contaminating the wiring harness. Furthermore, when it is necessary to inspect the wiring harness inside the wiring cavity, the connecting clip 600 can be quickly opened to separate the lower housing 100 and the upper housing 200 without damaging the structure. After inspection, the clips can be re-engaged, making the operation simple and efficient, reducing the difficulty of later maintenance, and ensuring the convenience and timeliness of wiring harness inspection.

[0053] Specifically, the connecting buckle 600 includes a male buckle and a female buckle for engaging with each other. The male buckle and the female buckle are respectively disposed on the upper housing 200 and the lower housing 100. When the upper housing 200 and the lower housing 100 are installed, the male buckle and the corresponding female buckle engage, thereby realizing the connection between the upper housing 200 and the lower housing 100.

[0054] Furthermore, in order not to affect the passage of the wire harness, the female buckle and the female buckle are located on both sides of the upper housing 200 and the lower housing 100 in the width direction, respectively, so as to avoid the connecting buckle 600 occupying the position of the wire passage cavity.

[0055] In some embodiments, the lower housing 100 has multiple tethering holes 700. During installation, cable ties or similar structures can be used to secure the wire harness to the lower housing 100 through the tethering holes 700. The tethering holes 700 provide convenient conditions for securing the wire harness. In practical applications, cable ties or other ropes can be passed through the tethering holes 700 to orderly bundle and secure the wire harness within the wiring cavity, preventing it from moving around freely. During vehicle operation, if the wire harness moves, it may rub against other components, potentially causing damage to the wire harness insulation layer and leading to short circuits or other faults. The tethering holes 700, combined with the cable ties, effectively prevent such problems, protecting the wire harness and improving the reliability of the electrical system. Furthermore, the multiple tethering holes 700 can be used flexibly according to the number and arrangement requirements of the wire harness, enabling the classification and organization of the wire harness, making the layout of the wire harness within the wiring cavity more organized. This facilitates quick identification and troubleshooting of wire harness problems during later maintenance, improving maintenance efficiency. Additionally, it avoids the problem of obstructed installation or compromised sealing performance of the seal 300 due to messy wire harnesses.

[0056] Furthermore, this application also provides a vehicle comprising: a vehicle body and a wiring harness for mounting to the vehicle body, wherein the aforementioned wiring structure is mounted on the vehicle body; at least one wiring harness passes through the wiring cavity of the wiring box. The wiring cavity of the wiring box provides centralized protection and organization for the passing wiring harness, preventing it from being directly exposed to vibration, high temperature, and impurities in the engine compartment, reducing the risk of wiring harness damage, and ensuring the stable operation of the vehicle's electrical system. The sealed design of the wiring structure effectively improves the overall vehicle NVH performance, reduces engine compartment noise entering the vehicle, improves the driving experience, and makes the wiring harness arrangement inside the engine compartment more aesthetically pleasing, meeting the requirements of refined vehicle design. In addition, this wiring structure is compatible with wiring harnesses of different diameters, eliminating the need to design separate wiring harness through-holes for different vehicle configurations, improving component commonality, reducing vehicle R&D and production costs, simplifying the production line assembly process, improving production efficiency, and facilitating mass production and market promotion of the vehicle.

[0057] In some embodiments, the system further includes a cabin heat insulation pad and a cabin frame; the cabin heat insulation pad is connected to the cabin frame; the cabin heat insulation pad has a through-hole mounting groove, the wiring structure is located at the mounting groove, and the seal 300 seals the gap between the mounting groove and the wiring box. Adding a cabin heat insulation pad and a cabin frame to the vehicle, and creating a mounting groove on the heat insulation pad to allow the wiring structure to be located at the mounting groove, allows the wiring structure to be perfectly integrated with the heat insulation pad, preventing the wiring structure from protruding or recessing and affecting the overall layout of the cabin, thus improving the cabin's aesthetics. The seal 300 seals the gap between the mounting groove and the wiring box, further enhancing the sealing effect, completely blocking the transmission path of noise, moisture, and dust, maximizing the overall NVH performance of the vehicle, protecting the wiring harness and components in the cabin from external environmental corrosion, and extending their service life. Simultaneously, the cabin heat insulation pad itself has a heat insulation function, and combined with the sealing design of the wiring structure, it can reduce the transfer of heat from the cabin to the outside, and also prevent the impact of low external temperatures on cabin components, optimizing the cabin thermal management system, ensuring that all vehicle components operate at suitable temperatures, and improving the overall performance and reliability of the vehicle. In addition, because of the presence of a seal 300, which is elastic, the size of the mounting groove does not need to be particularly precise, reducing the difficulty of the process.

[0058] In some embodiments, the nacelle frame is also provided with locking holes for installing clips 400. These locking holes can be manually drilled by installers according to site conditions.

[0059] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A threading structure, characterized in that, It includes: The junction box includes: The lower housing (100) is used for mounting to the nacelle frame; An upper housing (200) is used to connect with the lower housing (100), and a threading cavity is formed between the upper housing (200) and the lower housing (100); A sealing element (300) is used to seal the gap between the wiring box and the cabin insulation pad.

2. The threading structure according to claim 1, characterized in that, The lower housing (100) is provided with an installation structure for connecting the wiring box to the cabin frame.

3. The threading structure according to claim 2, characterized in that, The mounting structure includes a mounting buckle (400), which is located on the side of the lower housing (100) opposite to the upper housing (200) and is used to engage with a slot on the naval frame.

4. The threading structure according to claim 2, characterized in that, The mounting structure includes a mounting plate (500), which is disposed on one side of the wiring box in the width direction. The side of the mounting plate (500) facing the cabin frame is flush with the side of the lower shell (100) facing the cabin frame. The mounting plate (500) has a through mounting hole (501).

5. The threading structure according to claim 1, characterized in that, The sealing element (300) is a sponge strip, which is attached to both sides of the wiring box in the width direction and the side away from the cabin frame.

6. The threading structure according to claim 1, characterized in that, The sealing element (300) is a sponge block with a through groove for the wiring box to pass through, and the wiring box is in contact with the inner wall of the through groove of the sponge block.

7. The threading structure according to claim 1, characterized in that, The upper housing (200) and the lower housing (100) are connected by a connecting buckle (600).

8. The threading structure according to claim 1, characterized in that, The lower housing (100) has multiple rope holes (700).

9. A vehicle, characterized in that, include: The vehicle body and the wiring harness for mounting to the vehicle body, wherein the vehicle body is equipped with the wiring structure as described in any one of claims 1 to 8; At least one strand of the wire passes through the threading cavity of the wire harness.

10. The vehicle according to claim 9, characterized in that, Includes a cabin insulation pad and a cabin frame; the cabin insulation pad is connected to the cabin frame; The cabin heat insulation pad has a through-hole, the wiring structure is located at the mounting groove, and the sealing element (300) seals the gap between the mounting groove and the wiring box.

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