Back door assembly and vehicle

Abstract

The application provides a back door assembly and a vehicle, and belongs to the technical field of vehicle body parts. The back door assembly comprises a back door inner plate, a back door outer plate and a wire harness assembly. By opening mounting holes and assembly holes in the back door inner plate and distributing the fixing positions of the wire harness assembly on the periphery of the assembly holes, the connection of the back door inner plate and the back door outer plate can be completed to form a containing cavity during assembly, then the wire harness assembly is passed into the mounting holes through the assembly holes and extended into the containing cavity, and finally the fixation of the wire harness assembly is completed at the fixing positions. The wire harness does not need to be fixed first, and then the back door inner plate and the back door outer plate are assembled. The installation of the wire harness assembly is realized during the general assembly of the vehicle, the installation process of the wire harness is simplified, and when subsequent maintenance is performed, the wire harness assembly can be conveniently disassembled through the assembly holes, thereby improving the convenience of assembly and maintenance.

Description

Technical Field

[0001] This application belongs to the field of vehicle body component technology, and more specifically, relates to a tailgate assembly and a vehicle. Background Technology

[0002] As an important component of a vehicle, the tailgate is mainly used to open and close the trunk. It also integrates various electrical components such as the high-mounted brake light, tailgate lock, rear window defroster, and rear wiper. The normal operation of these components requires the transmission of power signals through wiring harnesses. Therefore, wiring harnesses need to be arranged on the tailgate to meet the power supply requirements.

[0003] In existing technologies, wiring harnesses are typically routed directly inside the tailgate inner panel, which in turn requires an interior trim panel for decoration and protection. To prevent interference between the trim panel and the wiring harness after installation and to ensure its safe operation, the tailgate trim panel must protrude inwards to accommodate the wiring harness. This design results in the protruding portion of the trim panel encroaching on the effective storage space of the trunk, reducing its actual usable volume and impacting the user's storage experience. Furthermore, while simply placing the wiring harness on the outside of the tailgate inner panel avoids the panel protruding inwards and reduces trunk space occupation, the harness remains hidden between the inner and outer panels. During assembly, the wiring harness must be secured first before connecting the inner and outer panels, making installation and maintenance inconvenient. Utility Model Content

[0004] The purpose of this application is to provide a tailgate assembly and vehicle, which aims to solve the problems of insufficient trunk storage space caused by the interior panel of the existing tailgate assembly protruding into the vehicle to provide installation space for the wiring harness, and the inconvenience of installation caused by placing the wiring harness between the inner and outer panels of the tailgate.

[0005] In a first aspect, embodiments of this application provide a rear door assembly, including: The inner panel of the rear door has assembly holes and mounting holes; An outer panel for the rear door is disposed outside the inner panel of the rear door. The outer panel and the inner panel form a receiving cavity in the inward and outward directions. The mounting hole and the assembly hole are respectively connected to the receiving cavity. A wire harness assembly passes through the mounting hole and extends into the receiving cavity; The inner panel of the rear door has fixing positions for fixing the wiring harness assembly, and the fixing positions are distributed around the outer periphery of the mounting hole.

[0006] The beneficial effects of the tailgate assembly provided in this application are as follows: Compared with the prior art, by opening mounting holes and assembly holes in the inner tailgate panel, and distributing the fixing positions of the wiring harness assembly around the assembly holes, the inner and outer tailgate panels can be connected first to form a receiving cavity during assembly. Then, the wiring harness assembly is passed through the mounting holes and extends into the receiving cavity. Finally, the wiring harness assembly is fixed at the fixing positions. This eliminates the need to fix the wiring harness before assembling the inner and outer tailgate panels, allowing the wiring harness assembly to be installed during vehicle assembly, simplifying the wiring harness installation process. Furthermore, the wiring harness assembly can be easily removed and installed through the assembly holes during subsequent maintenance, improving the convenience of assembly and maintenance. In addition, since the wiring harness assembly passes through the mounting holes and is located within the receiving cavity formed by the inner and outer tailgate panels, there is no need to reserve wiring space on the inner side of the interior panel, effectively avoiding the problem of the interior panel protruding into the vehicle interior. This ensures the effective storage volume of the trunk and solves the problems of insufficient trunk storage space and inconvenient wiring harness installation and maintenance in the prior art.

[0007] In conjunction with the first aspect, in one possible implementation, the wiring harness assembly includes: The mounting component is inserted into the mounting hole and is interference-fitted with the mounting hole. The mounting component has a wire through hole. The wire harness body passes through the wire-passing hole and extends into the receiving cavity; and A fastener is provided at the fixed position and connected to the wire harness body, used to fix the wire harness body to the inner panel of the back door.

[0008] In the above technical solution, the mounting component and the mounting hole on the inner panel of the tailgate are interference-fitted. This not only achieves a seal at the entry point of the wiring harness body, effectively preventing moisture and dust from entering the receiving cavity, but also ensures the structural firmness of the installation, avoiding loosening and abnormal noise that may be caused by vehicle vibration. After the wiring harness body passes through the through hole of the mounting component, it is then fixed to the fixing position on the inner panel of the tailgate by the fastener, improving the stability and reliability of the wiring harness body during long-term operation within the tailgate assembly.

[0009] In conjunction with the first aspect, in one possible implementation, the inner panel of the back door has a fixing hole, the fixing hole forms the fixing position, and the fixing member is inserted into the fixing hole.

[0010] In the above technical solution, by opening fixing holes on the outer periphery of the assembly hole, the fastener is directly inserted into the fixing holes, forming a simple and efficient mechanical connection, ensuring the stability of the wire harness body on the inner panel of the tailgate. This solution not only makes the arrangement of the wire harness body more orderly, avoiding wear and abnormal noise caused by shaking in the receiving cavity, but also allows the assembly process of the wire harness body to be carried out after the inner and outer panels of the tailgate are connected, and the fixing is completed directly by plugging, simplifying the assembly process and facilitating the subsequent quick inspection and replacement of the wire harness assembly.

[0011] In conjunction with the first aspect, in one possible implementation, the fastener includes: A fixing part, connected to the fixing position; and The connecting part is sleeved on the wire harness body or clamped on the wire harness body, and the connecting part is also connected to the fixing part.

[0012] In the above technical solution, the connecting part can first be sleeved or clamped and fixed with the wire harness body, and then the mounting part is connected to the wire harness body. During assembly, the wire harness body and the fixing part are simply inserted into the mounting hole and extended into the receiving cavity. Then, the fixing part on the connecting part is connected to the fixing position of the back door inner panel, and the mounting part is inserted into the mounting hole to complete the fixing of the wire harness body. The whole operation process is simple and efficient, reducing the assembly difficulty and improving the assembly efficiency.

[0013] In conjunction with the first aspect, in one possible implementation, the mounting component includes: A sheath, fitted over the wire harness body, is located outside the receiving cavity; and A sealing head is provided at the end of the sheath and has the thread hole provided therein. The sealing head is inserted into the mounting hole.

[0014] In the above technical solution, the sheath is fitted over the outside of the wire harness body and located outside the receiving cavity. It effectively protects the wire harness body that protrudes from the mounting hole, preventing it from being exposed to external friction, collision, or dust corrosion, thus improving the safety and durability of the wire harness body. The sealing head is inserted into the mounting hole, providing stable guidance and limiting for the wire harness body. It also achieves a sealing effect at the mounting hole through its cooperation, preventing moisture, dust, and other impurities from entering the receiving cavity through the mounting hole, ensuring the normal working environment of all components within the receiving cavity.

[0015] In conjunction with the first aspect, in one possible implementation, the rear door assembly further includes a window frame reinforcing plate disposed within the receiving cavity, the window frame reinforcing plate being connected to the inner panel of the rear door and forming a receiving channel with the inner panel of the rear door in the inward and outward directions, and the wiring harness assembly passing through the receiving channel.

[0016] In the above technical solution, the accommodating channel effectively limits and protects the wire harness assembly passing through it, preventing the wire harness assembly from getting tangled or interfering with other components in the accommodating cavity. At the same time, it can resist the vibration and impact during vehicle operation, prevent the wire harness from shifting or wearing out, and ensure the stability and durability of the wire harness connection.

[0017] In conjunction with the first aspect, in one possible implementation, the rear door assembly further includes a door lock reinforcing plate disposed within the receiving cavity, the door lock reinforcing plate being connected to the inner panel of the rear door, the door lock reinforcing plate having a wiring harness connection area protruding inward or outward, and the wiring harness assembly being fixed to the wiring harness connection area.

[0018] In the above technical solution, the wiring harness connection area adopts a protruding design to enhance its strength and prevent deformation caused by the wiring harness assembly shaking under stress. Simultaneously, the connection area provides a clear and stable fixing point for the wiring harness assembly, preventing displacement, shaking, or interference with surrounding components due to vibration during vehicle operation. Furthermore, the position and protruding direction of the wiring harness connection area can flexibly adapt to the internal space layout of the cavity, without affecting the assembly of the inner and outer tailgate panels, while also facilitating convenient installation and maintenance of the wiring harness assembly through mounting holes, without occupying the storage space on the side of the interior trim panel.

[0019] In conjunction with the first aspect, in one possible implementation, the tailgate assembly further includes an outer panel support plate disposed within the receiving cavity, the outer panel support plate being connected to the tailgate outer panel, the outer panel support plate having a wiring harness mounting area protruding inward or outward, and the wiring harness assembly being fixed to the wiring harness mounting area.

[0020] In the above technical solution, the outer panel support plate not only enhances the local strength of the tailgate outer panel, but also secures the wiring harness assembly through its wiring harness mounting area. This eliminates the need for additional dedicated wiring harness fixing components, simplifying the internal structure of the tailgate assembly and reducing overall manufacturing costs. The protruding design of the wiring harness mounting area enhances the structural strength of this area, preventing deformation caused by assembly loads and vibration loads from the wiring harness assembly. It also prevents the wiring harness from shifting or loosening due to vibration during vehicle operation, or from becoming entangled or interfering with other components within the housing cavity, further ensuring the stability and durability of the wiring harness operation.

[0021] In conjunction with the first aspect, in one possible implementation, the inner panel of the rear door has an outwardly recessed reinforcing area, and the mounting hole is formed in the reinforcing area.

[0022] In the aforementioned technical solution, the reinforced area of ​​the tailgate inner panel, through its recessed structural design, effectively enhances its structural strength and rigidity, strengthens the overall load-bearing capacity and deformation resistance of the tailgate assembly, better resists vibrations and external forces during vehicle operation, and extends the service life of the tailgate assembly. Simultaneously, the recessed design of the reinforced area creates an inwardly recessed space at the location of the mounting holes, preventing weakening of the surrounding structure due to the openings and avoiding protrusion into the vehicle interior, thus avoiding encroachment on the trunk storage space and ensuring maximum utilization of the trunk storage space.

[0023] Secondly, this application also provides a vehicle that uses the aforementioned tailgate assembly.

[0024] The beneficial effects of the vehicle provided in this application are as follows: Compared with the prior art, the aforementioned tailgate assembly, by opening mounting holes and assembly holes in the inner tailgate panel and distributing the fixing positions of the wiring harness assembly around the assembly holes, allows for assembly where the inner and outer tailgate panels can be connected first to form a receiving cavity. The wiring harness assembly is then inserted through the mounting holes and extends into the receiving cavity. Finally, the wiring harness assembly is fixed at the fixing positions. This eliminates the need to fix the wiring harness before assembling the inner and outer tailgate panels, allowing the wiring harness assembly to be installed during vehicle assembly, simplifying the wiring harness installation process. Furthermore, subsequent maintenance allows for convenient removal and installation of the wiring harness assembly through the assembly holes, improving the convenience of assembly and maintenance. In addition, since the wiring harness assembly passes through the mounting holes and is located within the receiving cavity formed by the inner and outer tailgate panels, there is no need to reserve wiring space on the inner side of the interior trim panel, effectively avoiding the problem of the interior trim panel protruding into the vehicle interior. This ensures the effective storage volume of the trunk and solves the problems of insufficient trunk storage space and inconvenient wiring harness installation and maintenance in the prior art. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the structure of the rear door assembly provided in an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the rear door assembly provided in an embodiment of this application; Figure 3 Another internal structural schematic diagram of the tailgate assembly provided in this application embodiment; Figure 4 A partial cross-sectional view of the rear door assembly provided in an embodiment of this application.

[0027] In the diagram: 1. Inner panel of the back door; 101. Assembly hole; 102. Fixing position; 103. Reinforcement area; 104. Reinforcing rib; 2. Outer panel of the back door; 3. Wiring harness assembly; 301. Mounting component; 3011. Sealing head; 3012. Sheath; 302. Wiring harness body; 303. Fixing component; 3031. Connecting part; 3032. Fixing part; 4. Door lock reinforcing plate; 401. Wiring harness connection area; 5. Window frame reinforcing plate; 501. Receiving groove; 6. Outer panel support plate; 601. Wiring harness installation area. Detailed Implementation

[0028] 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.

[0029] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to 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.

[0030] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0031] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", the bottom of the vehicle represents "down", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the driver's cab.

[0032] In addition, the front-rear direction of the vehicle body defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body defined refers to the up-down direction of the vehicle's forward direction during driving.

[0033] Please refer to the following: Figures 1 to 4 The tailgate assembly and vehicle provided in this application will now be described. The tailgate assembly includes an inner tailgate panel 1, an outer tailgate panel 2, and a wiring harness assembly 3. The inner tailgate panel 1 has an assembly hole 101 and a mounting hole. The outer tailgate panel 2 is located outside the inner tailgate panel 1, and the outer tailgate panel 2 and the inner tailgate panel 1 form a receiving cavity in the inward and outward direction. The mounting hole and the assembly hole 101 are respectively connected to the receiving cavity. The wiring harness assembly 3 passes through the mounting hole and extends into the receiving cavity. The inner tailgate panel 1 has a fixing position 102 for fixing the wiring harness assembly 3, and the fixing position 102 is distributed around the outer periphery of the assembly hole 101.

[0034] Compared with the prior art, the tailgate assembly provided in this application has a different feature. By opening mounting holes and assembly holes 101 in the inner tailgate panel 1, and distributing the fixing positions 102 of the wiring harness assembly 3 around the assembly holes 101, the inner tailgate panel 1 and the outer tailgate panel 2 can be connected first to form a receiving cavity during assembly. Then, the wiring harness assembly 3 is inserted into the mounting holes and extended into the receiving cavity through the assembly holes 101. Finally, the wiring harness assembly 3 is fixed at the fixing positions 102. This eliminates the need to fix the wiring harness before assembling the inner tailgate panel 1 and the outer tailgate panel 2, allowing the wiring harness assembly 3 to be installed during vehicle assembly. This simplifies the wiring harness installation process. At the same time, the wiring harness assembly 3 can be easily disassembled and installed through the assembly holes 101 during subsequent maintenance, improving the convenience of assembly and maintenance. In addition, the wiring harness assembly 3 passes through the mounting hole and is located in the cavity formed by the inner tailgate panel 1 and the outer tailgate panel 2. There is no need to reserve wiring space on the inside of the interior panel, which effectively avoids the problem of the interior panel protruding into the vehicle, ensures the effective storage volume of the trunk, and solves the problems of insufficient trunk storage space and inconvenient wiring harness installation and maintenance in the prior art.

[0035] Optionally, multiple fixing positions 102 are provided, distributed circumferentially along the mounting hole 101. This circumferential arrangement of the fixing positions 102 allows operators to quickly align and fix the wire harness assembly 3 with the surrounding fixing positions 102 after inserting it into the receiving cavity through the mounting hole 101, improving assembly efficiency. Furthermore, the multiple circumferentially distributed fixing positions 102 can limit the wire harness assembly 3 from different directions, effectively preventing radial displacement or shaking of the wire harness due to vibration during vehicle operation, ensuring a safe distance between the wire harness and other components within the receiving cavity, reducing interference and wear risks, and improving the regularity and reliability of the wire harness assembly 3's arrangement.

[0036] Optionally, the inner tailgate panel 1 protrudes inward to form a receiving groove, and the outer tailgate panel 2, connected to the inner tailgate panel 1, covers the receiving groove, forming a receiving cavity. Mounting holes are formed in the area of ​​the side wall of the inner tailgate panel 1 where the receiving groove is formed. The inner tailgate panel 1 itself forms a receiving groove structure, providing installation space for the wiring harness assembly 3 without the need for additional splicing components, thus reducing manufacturing costs. The mounting holes are located on the side wall of the receiving groove, preventing the wiring harness assembly 3 from encroaching on the trunk's internal space due to its placement on the inner side of the inner tailgate panel 1, ensuring the effective storage capacity of the trunk.

[0037] Please see Figure 1 and Figure 3In some embodiments, the wiring harness assembly 3 includes a mounting member 301, a wiring harness body 302, and a fixing member 303. The mounting member 301 is inserted into the mounting hole and is interference-fitted with the mounting hole. The mounting member 301 has a wire-passing hole. The wiring harness body 302 passes through the wire-passing hole and extends into the receiving cavity. The fixing member 303 is located at the fixing position 102 and is connected to the wiring harness body 302 to fix the wiring harness body 302 to the inner panel 1 of the back door.

[0038] Mounting component 301 is inserted into the mounting hole of the inner panel 1 of the tailgate and is interference-fitted thereto. This ensures a secure connection between mounting component 301 and the inner panel 1 of the tailgate, and also provides a stable passage for the wiring harness body 302 through the wiring hole. This avoids wear caused by direct contact between the wiring harness body 302 and the edge of the mounting hole, ensuring the safety and durability of the wiring harness body 302. After the wiring harness body 302 extends into the receiving cavity through the wiring hole, it is fixed by the fastener 303 engaging with the fixing position 102 of the inner panel 1 of the tailgate. This ensures that the wiring harness body 302 will not shift or shake due to vibration during vehicle operation, further improving the reliability of the wiring harness arrangement and preventing noise caused by the shaking of the wiring harness body 302. Meanwhile, the fastener 303, in conjunction with the mounting hole 101 of the inner panel 1 of the rear door, allows for convenient insertion of the mounting component 301, passing of the wire harness body 302, and assembly of the fastener 303 after the inner panel 1 of the rear door and the outer panel 2 of the rear door are connected. This not only simplifies the overall assembly process but also provides convenience for subsequent maintenance and replacement of the wire harness.

[0039] Optionally, multiple fixing members 303 and fixing positions 102 are provided, with each fixing member 303 and fixing position 102 corresponding to the other. These multiple corresponding fixing members 303 and fixing positions 102 provide multi-point fixed support for the wiring harness body 302, preventing localized suspension, shaking, or displacement of the wiring harness body 302 due to vibration during vehicle operation. This also prevents interference and wear between the wiring harness and other components within the housing cavity, improving the regularity and operational stability of the wiring harness arrangement. The distribution of fixing positions 102 can be flexibly planned according to the wiring path of the wiring harness body 302, making the wiring path of the wiring harness body 302 more rational.

[0040] Optionally, the fastener 303 is welded, screwed, riveted, or snapped onto the fixing position 102.

[0041] Please see Figure 1 In some embodiments, the inner panel 1 of the back door has a fixing hole, which forms a fixing position 102, and the fixing member 303 is inserted into the fixing hole.

[0042] Because the space within the accommodating cavity is limited after the inner panel 1 of the tailgate is connected to the outer panel 2 of the tailgate, it is impossible to connect the fastener 303 to the inner panel 1 of the tailgate by welding or other methods. This solution inserts the fastener 303 into the fixing hole, which is simple to operate and has high assembly efficiency. It can quickly fix the wiring harness body 302 to the inner panel 1 of the tailgate, and the insertion connection method is stable and reliable, which can effectively resist the vibration during vehicle operation, prevent the wiring harness body 302 from shifting or loosening, and ensure the stability of the wiring harness operation.

[0043] Optionally, the fastener 303 is inserted into the fixing hole and engages with the inner panel 1 of the back door. Please see Figure 3 In some embodiments, the fastener 303 includes a fastening part 3032 and a connecting part 3031. The fastening part 3032 is connected to the fastening position 102. The connecting part 3031 is sleeved on the outside of the wire harness body 302 or clamped on the wire harness body 302. The connecting part 3031 is also connected to the fastening part 3032.

[0044] The connecting part 3031 can first be sleeved or clamped to the wire harness body 302 for fixation. Then, the mounting part 301 is connected to the wire harness body 302. During assembly, simply insert the wire harness body 302 and the fixing part 303 into the mounting hole and extend into the receiving cavity. Then, connect the fixing part 3032 on the connecting part 3031 to the fixing position 102 of the tailgate inner panel 1, and insert the mounting part 301 into the mounting hole to complete the fixation of the wire harness body 302. The entire operation process is simple and efficient, reducing assembly difficulty and improving assembly efficiency. The connecting part 3031 is connected to the wire harness body 302 by sleeve or clamping without damaging the structure of the wire harness body 302, and can effectively prevent relative sliding between the wire harness body 302 and the connecting part 3031. The cooperation between the fixing part 3032 and the fixing position 102 ensures the installation stability of the wire harness body 302 on the tailgate inner panel 1, which can resist the vibration and impact during vehicle operation and prevent the wire harness from loosening or shifting.

[0045] Please see Figure 1 and Figure 3 In some embodiments, the mounting component 301 includes a sheath 3012 and a plug head 3011. The sheath 3012 is sleeved outside the wire harness body 302 and is located outside the receiving cavity. The plug head 3011 is located at the end of the sheath 3012 and has a wire through hole. The plug head 3011 is inserted into the mounting hole.

[0046] The sheath 3012 is fitted over the outside of the wire harness body 302 and located outside the receiving cavity. It can effectively protect the wire harness body 302 that passes through the mounting hole, preventing the wire harness body 302 from being exposed to the outside and subjected to external friction, collision or dust corrosion, thereby improving the safety and durability of the wire harness body 302.

[0047] The sealing head 3011 is inserted into the mounting hole, which not only provides stable guidance and limit for the wire harness body 302, but also achieves a sealing effect at the mounting hole through cooperation with the mounting hole, preventing moisture, dust and other impurities from entering the cavity through the mounting hole, and ensuring the normal working environment of the components in the cavity.

[0048] Optionally, the plug head 3011 is an elastic member, such as a rubber member, and the plug head 3011 is interference-fitted with the mounting hole.

[0049] Optionally, the sheath 3012 can be a telescopic component, such as a bellows.

[0050] Please see Figures 2 to 4 In some embodiments, the tailgate assembly further includes a window frame reinforcing plate 5 disposed in the receiving cavity. The window frame reinforcing plate 5 is connected to the inner panel 1 of the tailgate and forms a receiving channel with the inner panel 1 of the tailgate in the inward and outward directions. The wiring harness assembly 3 passes through the receiving channel.

[0051] Since the wiring harness controlling functions such as the rear window heater and rear wiper needs to extend to the lower part of the tailgate assembly glass to connect with the corresponding components, the accommodating channel formed by the window frame reinforcing plate 5 and the tailgate inner panel 1 provides a routing path for the wiring harness assembly 3, ensuring that the wiring harness assembly 3 can extend to the target position in an orderly manner and meet the power supply requirements of the functional components. The accommodating channel effectively limits and protects the wiring harness assembly 3 passing through it, preventing the wiring harness assembly 3 from getting tangled or interfering with other components in the accommodating cavity. At the same time, it can resist the vibration and impact during vehicle operation, prevent the wiring harness from shifting or wearing, and ensure the stability and durability of the wiring harness connection.

[0052] Optionally, the window frame reinforcing plate 5 has a receiving groove 501 protruding outward from the inner panel 1 of the rear door. The inner panel 1 of the rear door covers the opening of the receiving groove 501, forming a receiving channel. The setting of the receiving groove 501 can ensure that the wiring harness assembly 3 has a neat routing path and avoids entanglement or interference with other components in the receiving cavity. The inner panel 1 of the rear door can form a closed receiving channel by directly covering the opening of the receiving groove 501. The structural design is simple and does not require additional cover plates or other components, reducing processing and assembly costs. At the same time, the closed structure can provide good protection for the wiring harness, reduce the impact of vibration on the wiring harness during vehicle operation, prevent wear or displacement of the wiring harness assembly 3, and ensure the stability and durability of the connection of the wiring harness assembly 3.

[0053] Please see Figures 2 to 3 In some embodiments, the rear door assembly further includes a door lock reinforcing plate 4 disposed in the receiving cavity, the door lock reinforcing plate 4 being connected to the inner panel 1 of the rear door, the door lock reinforcing plate 4 having a wire harness connection area 401 protruding inward or outward, and the wire harness assembly 3 being fixed to the wire harness connection area 401.

[0054] The wiring harness connection area 401 features a protruding design, enhancing its strength and preventing deformation caused by the wiring harness assembly 3 shaking under stress. Simultaneously, the connection area 401 provides a clear and stable anchor point for the wiring harness assembly 3, preventing displacement, shaking, or interference with surrounding components due to vibrations during vehicle operation. Furthermore, the position and protruding direction of the wiring harness connection area 401 can flexibly adapt to the internal space layout of the cavity, ensuring uninterrupted assembly of the tailgate inner panel 1 and tailgate outer panel 2, while also facilitating convenient installation and maintenance of the wiring harness assembly 3 via the mounting holes 101, without occupying storage space on the side of the interior trim panel.

[0055] Please see Figure 3 In some embodiments, the tailgate assembly further includes an outer panel support plate 6 disposed in the receiving cavity, the outer panel support plate 6 being connected to the tailgate outer panel 2, the outer panel support plate 6 having a wiring harness mounting area 601 protruding inward or outward, and the wiring harness assembly 3 being fixed to the wiring harness mounting area 601.

[0056] The outer panel support plate 6 not only enhances the local strength of the tailgate outer panel 2, but also secures the wiring harness assembly 3 through its wiring harness mounting area 601. This eliminates the need for additional dedicated wiring harness fixing components, simplifying the internal structure of the tailgate assembly and reducing overall manufacturing costs. The protruding design of the wiring harness mounting area 601 enhances the structural strength of this area, preventing deformation caused by assembly loads and vibration loads of the wiring harness assembly 3. It also prevents the wiring harness from shifting or loosening due to vibration during vehicle operation, or from becoming entangled or interfering with other components within the housing cavity, further ensuring the stability and durability of the wiring harness operation.

[0057] Please see Figure 2 In some embodiments, the inner panel 1 of the back door has a reinforcing area 103 that is recessed outward, and the mounting hole 101 is formed in the reinforcing area 103.

[0058] The reinforced area 103 of the inner tailgate panel 1, through its recessed structural design, effectively enhances its structural strength and rigidity, strengthens the overall load-bearing capacity and deformation resistance of the tailgate assembly, better resists vibrations and external forces during vehicle operation, and extends the service life of the tailgate assembly. Simultaneously, the recessed design of the reinforced area 103 creates an inwardly recessed space at the location of the mounting hole 101. This avoids weakening the strength of the surrounding structure due to the opening, and also prevents it from protruding into the vehicle interior, thus avoiding encroachment on the trunk storage space and ensuring maximum utilization of the trunk storage space.

[0059] Optionally, multiple reinforcing zones 103 are provided, with each reinforcing zone 103 corresponding to a mounting hole 101. The corresponding arrangement of the reinforcing zones 103 and the mounting holes 101 can strengthen the opening position of the mounting holes 101, compensate for the weakening of the local strength of the inner panel 1 of the tailgate after each mounting hole 101 is opened, ensure the structural strength of each opening area of ​​the inner panel 1 of the tailgate is balanced, and further improve the overall rigidity and deformation resistance of the tailgate assembly.

[0060] Optionally, there is an inwardly protruding reinforcing rib 104 between two adjacent reinforcing areas 103. The reinforcing rib 104 and the outwardly recessed reinforcing area 103 form a complementary structure, which improves the overall structural strength and rigidity of the tailgate inner panel 1, disperses the vibration stress during vehicle operation, avoids the problem of local deformation or insufficient strength of the tailgate inner panel 1 due to the opening of multiple mounting holes 101 and reinforcing areas 103, and extends the service life of the tailgate assembly.

[0061] Based on the same inventive concept, this application also provides a vehicle. The vehicle includes the aforementioned tailgate assembly.

[0062] The vehicle provided by this utility model adopts the aforementioned tailgate assembly. By opening mounting holes and assembly holes 101 in the inner tailgate panel 1, and distributing the fixing positions 102 of the wiring harness assembly 3 around the assembly holes 101, during assembly, the inner tailgate panel 1 and the outer tailgate panel 2 can be connected first to form a receiving cavity. Then, the wiring harness assembly 3 is inserted into the mounting holes and extended into the receiving cavity through the assembly holes 101. Finally, the wiring harness assembly 3 is fixed at the fixing positions 102. It is not necessary to fix the wiring harness first and then assemble the inner tailgate panel 1 and the outer tailgate panel 2. The wiring harness assembly 3 can be installed during the final assembly of the vehicle, which simplifies the wiring harness installation process. At the same time, the wiring harness assembly 3 can be easily disassembled and installed through the assembly holes 101 during subsequent maintenance, which improves the convenience of assembly and maintenance. In addition, the wiring harness assembly 3 passes through the mounting hole and is located in the cavity formed by the inner tailgate panel 1 and the outer tailgate panel 2. There is no need to reserve wiring space on the inside of the interior panel, which effectively avoids the problem of the interior panel protruding into the vehicle, ensures the effective storage volume of the trunk, and solves the problems of insufficient trunk storage space and inconvenient wiring harness installation and maintenance in the prior art.

[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 rear door assembly, characterized in that, include: The inner panel (1) of the back door has an assembly hole (101) and a mounting hole; An outer panel (2) of the rear door is disposed on the outside of the inner panel (1) of the rear door. The outer panel (2) and the inner panel (1) of the rear door form a receiving cavity in the inward and outward directions. The mounting hole and the assembly hole (101) are respectively connected to the receiving cavity; and The wire harness assembly (3) passes through the mounting hole and extends into the receiving cavity; The inner panel (1) of the back door has a fixing position (102) for fixing the wiring harness assembly (3), the fixing position (102) being distributed around the outer periphery of the mounting hole (101).

2. The rear door assembly as described in claim 1, characterized in that, The wire harness assembly (3) includes: The mounting part (301) is inserted into the mounting hole and is interference-fitted with the mounting hole. The mounting part (301) has a wire hole. The wire harness body (302) passes through the wire hole and extends into the receiving cavity; and A fastener (303) is provided at the fixed position (102) and connected to the wire harness body (302) for fixing the wire harness body (302) to the inner panel (1) of the back door.

3. The rear door assembly as described in claim 2, characterized in that, The inner panel (1) of the back door has a fixing hole, which forms the fixing position (102), and the fixing member (303) is inserted into the fixing hole.

4. The tailgate assembly as described in claim 2, characterized in that, The fastener (303) includes: The fixing part (3032) is connected to the fixing position (102); and The connecting part (3031) is sleeved on the outside of the wire harness body (302) or clamped on the wire harness body (302), and the connecting part (3031) is also connected to the fixing part (3032).

5. The rear door assembly as described in claim 2, characterized in that, The mounting component (301) includes: A sheath (3012) is fitted over the wire harness body (302), and the sheath (3012) is located outside the receiving cavity; and A sealing head (3011) is provided at the end of the sheath (3012) and has the wire hole. The sealing head (3011) is inserted into the mounting hole.

6. The rear door assembly as described in claim 1, characterized in that, The rear door assembly also includes a window frame reinforcing plate (5) disposed in the receiving cavity. The window frame reinforcing plate (5) is connected to the inner panel (1) of the rear door and forms a receiving channel with the inner panel (1) in the inward and outward directions. The wire harness assembly (3) passes through the receiving channel.

7. The rear door assembly as described in claim 1, characterized in that, The rear door assembly also includes a door lock reinforcing plate (4) disposed in the receiving cavity. The door lock reinforcing plate (4) is connected to the inner panel (1) of the rear door. The door lock reinforcing plate (4) has a wire harness connection area protruding inward or outward. The wire harness assembly (3) is also fixed to the wire harness connection area.

8. The rear door assembly as described in claim 1, characterized in that, The tailgate assembly also includes an outer panel support plate (6) disposed in the receiving cavity. The outer panel support plate (6) is connected to the tailgate outer panel (2). The outer panel support plate (6) has a wire harness mounting area protruding inward or outward. The wire harness assembly (3) is also fixed to the wire harness mounting area.

9. The rear door assembly as described in claim 1, characterized in that, The inner panel (1) of the back door has a reinforcing area (103) that is recessed outward, and the mounting hole (101) is formed in the reinforcing area (103).

10. A vehicle, characterized in that, The rear door assembly having any one of claims 1-9.

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