Vehicle body rear connection structure and vehicle

Abstract

The application provides a vehicle body rear connecting structure and a vehicle, and belongs to the technical field of vehicle body structure. The vehicle body rear connecting structure comprises a side window assembly and a rear door window assembly. The glass rear channel and the fixing position on the rear door window trim are fixed by clamping, the glass rear channel is quickly and accurately installed, and the production efficiency is improved. The fixing position also provides a fixing area for the rear door inner panel and the rear door upper window frame, realizes stable connection of the rear door upper window frame, the rear door inner panel and the rear door window trim, and forms a cooperative stress system. The front part of the channel main body abuts against the rear door inner panel, the rear part of the channel main body is clamped with the fixing position, front and rear bidirectional fixation is formed, and the stability of the channel main body installation is enhanced. The lip part of the sealing edge extending to the inner side is extruded and sealed with the sealing part of the glass rear channel in the front and rear directions, a tight sealing structure is formed, and since the lip part and the sealing part both have good elastic force, assembly errors can be self-adaptively compensated in the assembly process.

Description

Technical Field

[0001] This application belongs to the field of vehicle body structure technology, and more specifically, relates to a rear vehicle body connection structure and a vehicle. Background Technology

[0002] In the vehicle body structure, the rear section typically includes the rear door trim panel assembly, side window assembly, rear windshield glass assembly, and side panel assembly. After assembly, the front of the side window assembly matches the rear door trim panel assembly, and the rear matches the rear windshield glass assembly. The side window assembly and the rear door trim panel assembly generally employ a sealing structure for elastic sealing, achieving multiple functions such as appearance matching, sealing, sound insulation, and interaction between the driver's cabin and the outside world.

[0003] In existing technologies, the connection between the rear door trim panel assembly and the side window assembly is mainly achieved through a sealing strip. A common method is to install a side window sealing strip on the side window assembly, using the lip of the sealing strip to abut against the rear door trim panel to form a seal. Alternatively, the sealing strip can be clipped onto relevant components of the rear door trim panel, relying on the overlap between the sealing strip and the side window assembly for sealing, thus serving to prevent water and dust accumulation.

[0004] However, these existing sealing connection structures have many drawbacks. For example, adhesive sealing strips are inconvenient to install, such as uneven application of strong adhesive, difficulty in controlling the bonding position, and susceptibility to the cleanliness of the sheet metal. Poor adhesion can lead to leaks, and they may even fall off during overcoating. Riveting methods increase the manufacturing precision and cost of parts, and the sealing strip is prone to detaching from the rivets after long-term use. Some sealing structures are also greatly affected by assembly errors. For example, if the sealing strip is not compressed enough at the installation point of the side decorative panel, it can easily lead to poor sealing and leaks. Utility Model Content

[0005] The purpose of this application is to provide a rear-mounted connection structure and vehicle, which aims to solve the problems of inconvenient installation, insufficient connection strength, and poor sealing effect of existing sealing structures.

[0006] In a first aspect, embodiments of this application provide a rear vehicle body connection structure, including:

[0007] A side window assembly includes a side window component and a sealing rim surrounding the periphery of the side window component, the sealing rim having a lip extending inward toward the side window component; and

[0008] The rear door and window assembly includes a rear door and window decorative panel, a rear door upper window frame disposed inside the rear door and window decorative panel, and a rear door inner panel disposed inside the rear door upper window frame. It also includes a glass back groove disposed at the rear of the rear door and window decorative panel. The rear door and window decorative panel includes a decorative panel body and a fixing position disposed inside the decorative panel body. The rear portions of the rear door upper window frame and the rear door inner panel are both connected to the fixing position. The glass back groove includes a groove body and a sealing portion connected to the groove body. The front portion of the groove body abuts against the rear door inner panel, and the rear portion is engaged with the fixing position. The sealing portion is pressed and sealed against the lip portion in the front-to-back direction.

[0009] The beneficial effect of the rear vehicle body connection structure provided in this application is that, compared with the prior art, the fixing position of the rear glass channel and the rear door window trim panel is fixed by a snap-fit ​​mechanism, eliminating the need for traditional sealing strip bonding or riveting methods. This avoids problems such as uneven application of strong adhesive, difficulty in controlling the bonding position, and high cost and easy detachment of riveting. Through the snap-fit ​​mechanism, this application enables rapid and precise installation of the rear glass channel, effectively reducing assembly difficulty and time costs, and significantly improving production efficiency and installation stability.

[0010] The fixing position also provides a fixing area for the rear door inner panel and the rear door upper window frame, achieving a stable connection between the rear door upper window frame, the rear door inner panel, and the rear door window trim panel, forming a coordinated force-bearing system. The front part of the main body of the webbing abuts against the rear door inner panel, and together with the snap-fit ​​between the rear part of the webbing main body and the fixing position, a two-way fixing is formed, further enhancing the stability of the webbing main body installation, effectively reducing the possibility of component loosening due to vibration and external impact, and ensuring the long-term reliability of the rear connection structure of the vehicle body under complex working conditions.

[0011] In addition, the lip extending inward from the sealing edge and the sealing part of the glass back groove are squeezed and sealed in the front and back direction to form a tight sealing structure. Since both the lip and the sealing part have good elasticity, they can adaptively compensate for assembly errors during the assembly process, thereby enhancing the sealing performance.

[0012] In conjunction with the first aspect, in one possible implementation, the rear door and window assembly further includes a front glass groove and a rear door glass located in front of the rear door and window trim panel. The front glass groove includes a first connecting portion, a second connecting portion, and a limiting lip. The first connecting portion is engaged with the rear end of the rear door glass, and the limiting lip abuts against the front end of the rear door and window trim panel. The front ends of the rear door upper window frame and the rear door inner panel are interconnected and engaged with the second connecting portion.

[0013] In the aforementioned technical solution, the limiting lip of the front glass groove abuts against the front end of the rear door window trim panel. While providing stable support, the tight fit effectively prevents dust and rainwater from intruding into the vehicle interior through the gaps at the front end of the rear door trim panel, thus enhancing the sealing performance. Furthermore, the snap-fit ​​design between the second connecting part and the front end of the upper rear door window frame and the inner rear door panel not only achieves a stable connection between the three, forming an integrated load-bearing structure and improving the overall rigidity of the rear of the vehicle body, but also simplifies the assembly process.

[0014] In conjunction with the first aspect, in one possible implementation, the rear vehicle body connection structure further includes a side panel assembly, the side panel assembly comprising:

[0015] The side panel is located inside the side window assembly and the rear door / window assembly; and

[0016] A side drainage channel is connected to the rear of the side outer panel. The lip portion located at the front of the side window assembly seals against the side outer panel, and the lip portion located at the rear of the side window assembly seals against the side drainage channel. The lip portion creates a sealed space between the side assembly and the side window assembly.

[0017] In the above technical solution, the lip of the sealing edge abuts against the outer side panel and the side drainage channel, respectively, so that a sealed space is formed between the side panel assembly and the side window assembly. This not only improves the sealing effect in this area and prevents external moisture or dust from entering the sealed space, but also covers the weld points and adhesive at the connection between the outer panel and the side drainage channel, preventing the weld points from being corroded or the adhesive from being contaminated and falling off.

[0018] In conjunction with the first aspect, in one possible implementation, the side panel assembly further includes a door frame sealing strip and a C-pillar inner panel disposed inside the outer side panel. The front part of the C-pillar inner panel is connected to the front part of the outer side panel, and the rear part of the C-pillar inner panel is spaced apart from the outer side panel. The door frame sealing strip is snapped into the connection between the C-pillar inner panel and the outer side panel and abuts against the rear door inner panel.

[0019] In the above technical solution, the front part of the C-pillar inner panel is connected to the side outer panel and then snaps into the door frame sealing strip, achieving the fixation of the door frame sealing strip without the need for external components. Since the door frame sealing strip also abuts against the rear door inner panel, in conjunction with the compression seal of the glass rear groove and lip, a closed space is formed between the side outer panel and the rear door inner panel. Even if external impurities enter this area through the glass rear groove and lip, they will be blocked by the door frame sealing strip and cannot continue to intrude into the passenger compartment, thus improving the overall sealing performance of the vehicle.

[0020] In conjunction with the first aspect, in one possible implementation, the side panel assembly further includes a D-pillar reinforcing plate disposed between the outer side panel and the inner C-pillar panel, the rear part of the D-pillar reinforcing plate being connected to the side panel water channel and the front part being connected to the inner C-pillar panel, and the middle region of the D-pillar reinforcing plate being spaced apart from the outer side panel in the inward and outward directions.

[0021] In the above technical solution, during the installation of the side window assembly, the operator uses a front-to-back striking assembly method to improve the connection's firmness. However, the side drainage channel is highly susceptible to deformation due to the striking force. The D-pillar reinforcing plate and the C-pillar inner plate are connected, and then respectively connected to the side outer plate and the side drainage channel. These components together form a cavity, providing a reliable support structure for the side drainage channel. By firmly connecting to the rear of the side drainage channel, the striking force can be effectively dispersed during assembly, reducing the probability of deformation of the side drainage channel.

[0022] In conjunction with the first aspect, in one possible implementation, the outer side panel further includes an inner D-pillar panel disposed inside the D-pillar reinforcing plate, the front part of the inner D-pillar panel being connected to the rear part of the inner C-pillar panel, the rear part of the inner D-pillar panel being connected to the D-pillar reinforcing plate, and the inner D-pillar panel and the D-pillar reinforcing plate forming a reinforcing cavity in the inward and outward directions.

[0023] In the above technical solution, the inner panel of the D-pillar is connected to the rear of the inner panel of the C-pillar, and then connected to the D-pillar reinforcing plate. The above structures together form a reinforcement cavity. The presence of the reinforcement cavity not only improves the strength and deformation resistance of the inner panel of the D-pillar and the D-pillar reinforcing plate, but also efficiently disperses and transmits external forces, evenly distributing the stress acting on the side water channel to each component, effectively avoiding local stress concentration.

[0024] In conjunction with the first aspect, in one possible implementation, the side panel assembly further includes a reinforcing plate disposed within the reinforcing cavity, the reinforcing plate being respectively connected to the inner panel of the D-pillar and the reinforcing plate of the D-pillar.

[0025] In the above technical solution, the reinforcing plate tightly connects the inner panel of the D-pillar and the reinforcing plate of the D-pillar, enhancing the overall rigidity of the structure and preventing the side wall drainage channel from deforming into the reinforcing cavity under stress, thus improving safety inside the driver's cab. The solution in this embodiment enhances the overall strength of the rear connection structure of the side wall, ensuring that the vehicle maintains good structural stability under complex operating conditions, reducing the risk of component damage, and extending the vehicle's service life.

[0026] In conjunction with the first aspect, in one possible implementation, the reinforcing plate includes a reinforcing body and reinforcing flanges located on opposite sides of the reinforcing body. The reinforcing flanges are distributed at an angle to the reinforcing body and are connected to the inner plate of the D-pillar. The reinforcing body is connected to the reinforcing plate of the D-pillar.

[0027] In the above technical solution, the reinforcement main body of the reinforcement plate is connected to the D-pillar reinforcement plate, and the reinforcement flanges on the opposite two sides are connected to the inner D-pillar plate, forming a "C" shape structure, which not only increases the contact area between the reinforcement plate and the inner D-pillar plate and the D-pillar reinforcement plate, improves the stability of the connection, but also avoids the phenomenon of offset when the reinforcement plate is stressed unidirectionally.

[0028] In combination with the first aspect, in a possible implementation manner, the sealing edge has a side window installation position, a decorative panel installation position and a skeleton installation position. The side window installation position is located in front of the decorative panel installation position, and the skeleton installation position is located inside the decorative panel installation position. The side window assembly includes a side window body embedded in the side window installation position, a side window decorative panel embedded in the decorative panel installation position, and a support skeleton embedded in the skeleton installation position. The support skeleton and the sealing edge both have an avoidance area for avoiding the side window body.

[0029] In the above technical solution, the side window body and the side window decorative panel are distributed in the front-rear direction, which not only reduces the occupied space in the inner-outer direction, optimizes the space utilization rate, provides greater flexibility for the internal structure layout of the vehicle, but also increases the occupied space in the front-rear direction, enabling the outer side panel not to abut against the rear ends of the side window decorative panel, the sealing edge and the side window body, avoiding the need for the outer side panel to be positioned one by one with the above components during installation, and improving the installation accuracy. The support skeleton provides corresponding support force for the side window decorative panel and the sealing edge, improving the overall strength of the side window assembly.

[0030] In a second aspect, an embodiment of the present application further provides a vehicle including the above-described vehicle rear connection structure.

[0031] The beneficial effect of the vehicle provided by the present application is that, compared with the prior art, the above-described vehicle rear connection structure is adopted, and it has a similar technical effect to the above-described vehicle rear connection structure, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 is a schematic structural diagram of the vehicle rear connection structure provided by an embodiment of the present application;

[0034] Figure 2 is Figure 1 a cross-sectional view along line A-A in

[0035] Figure 3for Figure 1 A cross-sectional view along line BB.

[0036] In the diagram: 1. Rear door and window assembly; 101. Rear door and window decorative panel; 1011. Decorative panel body; 1012. Fixing position; 102. Rear door upper window frame; 103. Rear door inner panel; 104. Glass rear groove; 1041. Groove body; 1042. Sealing part; 105. Rear door glass; 106. Glass front groove; 1061. First connecting part; 1062. Second connecting part; 1063. Limiting lip; 2. Side window assembly; 201. Side window component; 2011. Side window body; 2012. Support frame; 2013. Side window decorative panel; 202. Sealing edge; 2021. Lip edge; 3. Side wall assembly; 301. Side wall outer panel; 302. Side wall drainage channel; 303. D-pillar reinforcement plate; 304. C-pillar inner panel; 305. Door frame sealing strip; 306. Rear door sealing strip; 307. D-pillar inner panel; 308. Reinforcing plate; 3081. Reinforcing main body; 3082. Reinforcing flange; 4. Rear window assembly. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Please refer to the following: Figures 1 to 3 The following describes the rear vehicle body connection structure and the vehicle provided in this application. The rear vehicle body connection structure includes a side window assembly 2 and a rear door window assembly 1. The side window assembly 2 includes a side window component 201 and a sealing edge 202 surrounding the side window component 201. The sealing edge 202 has a lip portion 2021 extending inward toward the side window component 201. The rear door window assembly 1 includes a rear door window trim panel 101, a rear door upper window frame 102 located inside the rear door window trim panel 101, and a rear door inner panel 103 located inside the rear door upper window frame 102. It also includes a glass rear groove located at the rear of the rear door window trim panel 101. 104. The rear door and window decorative panel 101 includes a decorative panel body 1011 and a fixing position 1012 located inside the decorative panel body 1011. The rear parts of the upper window frame 102 of the rear door and the inner panel 103 of the rear door are both connected to the fixing position 1012. The glass back groove 104 includes a groove body 1041 and a sealing part 1042 connected to the groove body 1041. The front part of the groove body 1041 abuts against the inner panel 103 of the rear door, and the rear part is snapped into the fixing position 1012. The sealing part 1042 is squeezed and sealed with the lip part 2021 in the front-back direction.

[0043] Compared with existing technologies, the rear vehicle body connection structure provided in this application uses a snap-fit ​​mechanism to fix the glass rear window groove 104 to the fixing position 1012 on the rear door window trim panel 101. This eliminates the need for traditional sealing strip bonding or riveting methods, avoiding problems such as uneven application of strong adhesive, difficulty in controlling the bonding position, and high cost and easy detachment of riveting. This application achieves rapid and precise installation of the glass rear window groove 104 through snap-fit, effectively reducing assembly difficulty and time costs, and significantly improving production efficiency and installation stability.

[0044] The fixing position 1012 also provides a fixing area for the rear door inner panel 103 and the rear door upper window frame 102, realizing a stable connection between the rear door upper window frame 102, the rear door inner panel 103, and the rear door window trim panel 101, forming a coordinated force-bearing system. The front part of the groove body 1041 abuts against the rear door inner panel 103, and together with the snap-fit ​​between the rear part of the groove body 1041 and the fixing position 1012, a two-way fixing is formed, further enhancing the stability of the groove body 1041 installation, effectively reducing the possibility of component loosening due to vibration and external impact, and ensuring the long-term reliability of the rear connection structure of the vehicle body under complex working conditions.

[0045] In addition, the lip portion 2021 extending inward from the sealing edge 202 and the sealing portion 1042 of the glass back groove 104 are squeezed and sealed in the front and back directions to form a tight sealing structure. Since both the lip portion 2021 and the sealing portion 1042 have good elasticity, they can adaptively compensate for assembly errors during the assembly process, thereby enhancing the sealing performance.

[0046] Optionally, the groove body 1041 has a fixed protrusion that is press-fitted with the rear door window trim panel 101.

[0047] Optionally, the fixing position 1012 includes a connecting piece connected to the decorative panel body 1011 and a fixing piece connected to the inner side of the connecting piece. The front and rear parts of the fixing piece form fixing areas respectively. The groove body 1041 is connected to the rear fixing area, and the rear door upper window frame 102 and the rear door inner panel 103 are connected to the front fixing area.

[0048] Optionally, both the sealing edge 202 and the glass back groove are rubber components.

[0049] Optionally, the lip portion 2021 is provided circumferentially along the sealing edge 202.

[0050] It should be noted that a rear window assembly 4 is also provided behind the side window assembly 2.

[0051] Please see Figure 2 In some embodiments, the rear door and window assembly 1 further includes a glass front groove 106 and a rear door glass 105 located in front of the rear door and window decorative panel 101. The glass front groove 106 includes a first connecting part 1061, a second connecting part 1062 and a limiting lip 1063. The first connecting part 1061 is engaged with the rear end of the rear door glass 105, and the limiting lip 1063 abuts against the front end of the rear door and window decorative panel 101. The front ends of the rear door upper window frame 102 and the rear door inner panel 103 are connected to each other and engaged with the second connecting part 1062.

[0052] The first connecting part 1061 of the front glass channel 106 is snap-fitted to the rear end of the rear door glass 105, enabling quick and precise installation of the rear door glass 105 and improving assembly efficiency and reliability. The limiting lip 1063 of the front glass channel 106 abuts against the front end of the rear door window trim panel 101, providing stable support while effectively preventing dust and rainwater from entering the vehicle interior through gaps in the front end of the rear door trim panel, thus enhancing sealing performance. The snap-fit ​​design of the second connecting part 1062 with the front end of the rear door upper window frame 102 and the rear door inner panel 103 not only achieves a stable connection between the three, forming an integrated load-bearing structure and improving the overall rigidity of the rear of the vehicle body, but also simplifies the assembly process. The coordinated operation of the various structures of the front glass channel 106 further strengthens the sealing and protection performance of the rear of the vehicle body, while optimizing installation convenience and improving connection firmness.

[0053] Please see Figures 2 to 3 In some embodiments, the rear connection structure of the vehicle body also includes a side panel assembly 3, which includes a side panel outer plate 301 and a side panel drainage channel 302. The side panel outer plate 301 is disposed on the inner side of the side window assembly 2 and the rear door window assembly 1. The side panel drainage channel 302 is connected to the rear of the side panel outer plate 301. The lip portion 2021 located at the front of the side window assembly 201 seals against the side panel outer plate 301, and the lip portion 2021 located at the rear of the side window assembly 201 seals against the side panel drainage channel 302. The lip portion 2021 forms a sealed space between the side panel assembly 3 and the side window assembly 2.

[0054] The lip 2021 of the sealing edge 202 abuts against the outer side panel 301 and the side water channel 302, respectively, forming a sealed space between the side panel assembly 3 and the side window assembly 2. This not only improves the sealing effect in this area, preventing external moisture or dust from entering the sealed space, but also covers the weld points and adhesive at the connection between the outer panel and the side water channel 302, preventing corrosion of the weld points or contamination and detachment of the adhesive. In addition, the formation of this sealed space reduces wind noise generated by external airflow entering the gaps in the vehicle body, improving the overall NVH performance of the vehicle.

[0055] Optionally, the outer side panel 301 includes a side panel body and a side panel flange located at the rear of the side panel body, the side panel flange bending inward toward the side panel body; the side panel water channel 302 is located behind the outer side panel 301, the side panel water channel 302 includes a water channel body and a water channel flange located at the front of the water channel body, the water channel flange and the side panel flange are staggered in the vertical direction; the side panel flange and the water channel body are connected in the front-to-back direction, and the water channel flange and the side panel body are connected in the inner-outer direction.

[0056] By bending the side flange of the outer side panel 301 inwards towards the inner side panel body and connecting the side flange to the main body of the water channel in the front-to-back direction, while the water channel flange is connected to the main body of the side panel in the inward-outward direction, this combined connection method in both the inward-outward and front-to-back directions completely avoids the traditional undercut structure design where the outer side panel 301 needs to be bent in the opposite direction to form a welded flange. This greatly reduces the forming difficulty of the outer side panel 301, simplifies the stamping process, reduces breakage caused by flange angle issues, and effectively improves product yield. Because the water channel flange and the side panel flange are staggered in the vertical direction, mutual interference is avoided, and the stress on the outer side panel 301 and the side water channel 302 is evenly distributed.

[0057] Please see Figure 2 In some embodiments, the side panel assembly 3 further includes a door frame sealing strip 305 and a C-pillar inner panel 304 disposed inside the side panel outer panel 301. The front part of the C-pillar inner panel 304 is connected to the front part of the side panel outer panel 301, and the rear part of the C-pillar inner panel 304 is spaced apart from the side panel outer panel 301. The door frame sealing strip 305 is snapped into the connection between the C-pillar inner panel 304 and the side panel outer panel 301 and abuts against the rear door inner panel 103.

[0058] The rear of the C-pillar inner panel 304 is spaced apart from the side outer panel 301, forming a buffer space. When subjected to external force, this space provides a cushioning effect, absorbing the force and achieving a collapse-energy absorption effect. It also prevents the side outer panel 301 from deforming and squeezing the C-pillar inner panel 304, thus preventing deformation of the C-pillar inner panel 304. The front of the C-pillar inner panel 304 is connected to the side outer panel 301 and then snaps into the door frame sealing strip 305, achieving fixation of the door frame sealing strip 305 without the need for external components. Since the door frame sealing strip 305 also abuts against the rear door inner panel 103, and with the compression seal of the glass rear groove 104 and the lip 2021, a closed space is formed between the side outer panel 301 and the rear door inner panel 103. Even if external impurities enter this area through the glass rear groove 104 and the lip 2021, they will be blocked by the door frame sealing strip 305 and cannot continue to intrude into the passenger compartment, improving the overall sealing performance of the vehicle.

[0059] Optionally, a rear door sealing strip 306 is provided between the rear door inner panel 103 and the side outer panel 301, with the rear door sealing strip 306 abutting against the side outer panel 301 and the rear door inner panel 103 respectively. The rear door sealing strip 306 divides the aforementioned enclosed space into two independent chambers, thereby further preventing external impurities from entering the driver's cab.

[0060] Please see Figures 2 to 3In some embodiments, the side panel assembly 3 further includes a D-pillar reinforcing plate 303 disposed between the side panel outer plate 301 and the C-pillar inner plate 304. The rear part of the D-pillar reinforcing plate 303 is connected to the side panel water channel 302, and the front part is connected to the C-pillar inner plate 304. The middle area of ​​the D-pillar reinforcing plate 303 and the side panel outer plate 301 are distributed at intervals in the inward and outward directions.

[0061] During the installation of the side window assembly 2, the operator uses a front-to-back striking method to improve the connection's firmness. However, the side drainage channel 302 is highly susceptible to deformation due to the striking force. The D-pillar reinforcing plate 303 and the C-pillar inner plate 304 are connected, and then respectively connected to the side outer plate 301 and the side drainage channel 302. These components together form a cavity, providing a reliable support structure for the side drainage channel 302. By firmly connecting with the rear of the side drainage channel 302, the striking force can be effectively dispersed during assembly, reducing the probability of deformation of the side drainage channel 302. At the same time, the front of the D-pillar reinforcing plate and the side drainage channel 302 are spaced apart in the inward and outward directions, optimizing the structural stress mode and forming a stable mechanical support system. This resists various external forces during vehicle operation and enhances the overall rigidity of the rear connection structure of the side wall.

[0062] Please see Figures 2 to 3 In some embodiments, the side outer panel 301 further includes a D-pillar inner panel 307 disposed inside the D-pillar reinforcing plate 303. The front part of the D-pillar inner panel 307 is connected to the rear part of the C-pillar inner panel 304, and the rear part of the D-pillar inner panel 307 is connected to the D-pillar reinforcing plate 303. The D-pillar inner panel 307 and the D-pillar reinforcing plate 303 form a reinforcing cavity in the inward and outward directions.

[0063] The D-pillar inner panel 307 is connected to the rear of the C-pillar inner panel 304, and then to the D-pillar reinforcing plate 303. These structures together form a reinforcement cavity. The presence of this reinforcement cavity not only enhances the strength and deformation resistance of the D-pillar inner panel 307 and the D-pillar reinforcing plate 303, but also efficiently disperses and transmits external forces, evenly distributing the stress acting on the side drainage channel 302 to each component, effectively avoiding localized stress concentration.

[0064] Optionally, the D-pillar inner panel 307 includes an upper inner panel and a lower inner panel. The upper inner panel is connected to the upper part of the D-pillar reinforcing plate 303, and the lower inner panel is connected to the lower part of the D-pillar reinforcing plate 303 and is located inside the upper inner panel. To reduce processing difficulty, the upper inner panel and the lower inner panel can be processed into separate components, and then connected by welding or bonding.

[0065] Please see Figure 3 In some embodiments, the side panel assembly 3 further includes a reinforcing plate 308 disposed in the reinforcing cavity, the reinforcing plate 308 being connected to the inner panel 307 of the D-pillar and the reinforcing plate 303 of the D-pillar respectively.

[0066] The reinforcing plate 308 tightly connects the inner panel of the D-pillar and the reinforcing plate of the D-pillar, enhancing the overall rigidity of the structure and preventing the side panel drainage channel 302 from deforming into the reinforcing cavity under stress, thus improving safety inside the driver's cab. The solution in this embodiment enhances the overall strength of the rear side panel connection structure, ensuring that the vehicle maintains good structural stability under complex operating conditions, reducing the risk of component damage, and extending the vehicle's service life.

[0067] Please see Figure 3 In some embodiments, the reinforcing plate 308 includes a reinforcing body 3081 and reinforcing flanges 3082 located on opposite sides of the reinforcing body 3081. The reinforcing flanges 3082 are distributed at an angle to the reinforcing body 3081 and are connected to the inner plate 307 of the D-pillar. The reinforcing body 3081 is connected to the reinforcing plate 303 of the D-pillar.

[0068] The reinforcing body 3081 of the reinforcing plate 308 is connected to the D-pillar reinforcing plate, while the reinforcing flanges 3082 on both sides are connected to the inner D-pillar panel 307, forming a "U"-shaped structure. This not only increases the contact area between the reinforcing plate 308 and the inner D-pillar panel and the D-pillar reinforcing plate, improving the stability of the connection, but also prevents the reinforcing plate 308 from shifting when subjected to force on one side. Simultaneously, this design also enhances the bending and deformation resistance of the reinforcing cavity. Furthermore, when the vehicle is subjected to dynamic loads or sudden impacts, the angled structure between the reinforcing flanges 3082 and the reinforcing body 3081 can disperse stress through geometric advantages, reducing stress concentration at the connection point and allowing external forces to be evenly transmitted to the inner D-pillar panel and the D-pillar reinforcing plate, thereby improving the overall rigidity of the rear side panel connection structure.

[0069] Please see Figures 2 to 3 In some embodiments, the sealing edge 202 has a side window mounting position, a decorative panel mounting position, and a frame mounting position. The side window mounting position is located in front of the decorative panel mounting position, and the frame mounting position is located inside the decorative panel mounting position. The side window assembly 201 includes a side window body 2011 embedded in the side window mounting position, a side window decorative panel 2013 embedded in the decorative panel mounting position, and a support frame 2012 embedded in the frame mounting position. Both the support frame 2012 and the sealing edge 202 have a clearance area that avoids the side window body 2011.

[0070] The side window body 2011, side window trim panel 2013, and support frame 2012 are respectively embedded in the corresponding mounting positions of the sealing edge 202. Compared with the step-by-step installation process in the prior art, this simplifies the installation steps. Moreover, each mounting position on the sealing edge 202 has a positioning function, eliminating the need for alignment and positioning of individual components during assembly, thus improving installation efficiency. In addition, the side window body 2011 and side window trim panel 2013 are distributed along the front-rear direction, which not only reduces the space occupied in the interior and exterior directions and optimizes space utilization, providing greater flexibility for the vehicle's internal structural layout, but also increases the space occupied in the front-rear direction, so that the side outer panel 301 does not need to abut against the rear end of the side window trim panel 2013, sealing edge 202, and side window body 2011, avoiding the need for the side outer panel 301 to be positioned with the aforementioned components one by one during installation, thus improving installation accuracy. The support frame 2012 provides corresponding support force to the side window trim panel 2013 and sealing edge 202, improving the overall strength of the side window assembly 2. The clearance area between the supporting frame 2012 and the sealing edge 202 exposes the side window body 2011, thus avoiding obstruction of the side window body 2011.

[0071] Specifically, the sealing edge 202 is a rubber sealing structure.

[0072] Specifically, the side window body 2011 is a transparent component, such as a glass or resin component.

[0073] Optionally, the side window body 2011, side window decorative panel 2013, and support frame 2012 are all integrally formed with the sealing edge 202. This one-piece injection molding method further simplifies the installation process, eliminating the need for positioning and installation, as well as separate installation of the side window body 2011, side window decorative panel 2013, and support frame 2012. The connection of multiple components is achieved through a single molding process, improving assembly efficiency.

[0074] Based on the same inventive concept, this application also provides a vehicle. The vehicle includes the aforementioned rear body connection structure.

[0075] The vehicle provided by this utility model adopts the aforementioned rear body connection structure. The rear glass channel 104 and the fixing position 1012 on the rear door window trim panel 101 are fixed by a snap-fit ​​mechanism, eliminating the need for traditional sealing strip bonding or riveting methods. This avoids problems such as uneven application of strong adhesive, difficulty in controlling the bonding position, and high cost and easy detachment of riveting. This application achieves rapid and precise installation of the rear glass channel 104 through the snap-fit ​​mechanism, effectively reducing assembly difficulty and time costs, and significantly improving production efficiency and installation stability.

[0076] The fixing position 1012 also provides a fixing area for the rear door inner panel 103 and the rear door upper window frame 102, realizing a stable connection between the rear door upper window frame 102, the rear door inner panel 103, and the rear door window trim panel 101, forming a coordinated force-bearing system. The front part of the groove body 1041 abuts against the rear door inner panel 103, and together with the snap-fit ​​between the rear part of the groove body 1041 and the fixing position 1012, a two-way fixing is formed, further enhancing the stability of the groove body 1041 installation, effectively reducing the possibility of component loosening due to vibration and external impact, and ensuring the long-term reliability of the rear connection structure of the vehicle body under complex working conditions.

[0077] In addition, the lip portion 2021 extending inward from the sealing edge 202 and the sealing portion 1042 of the glass back groove 104 are squeezed and sealed in the front and back directions to form a tight sealing structure. Since both the lip portion 2021 and the sealing portion 1042 have good elasticity, they can adaptively compensate for assembly errors during the assembly process, thereby enhancing the sealing performance.

[0078] 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 vehicle body rear connecting structure characterized by comprising: include: A side window assembly (2) includes a side window component (201) and a sealing edge (202) surrounding the periphery of the side window component (201), the sealing edge (202) having a lip (2021) extending inward toward the side window component (201); and The rear door and window assembly (1) includes a rear door and window decorative panel (101), a rear door upper window frame (102) disposed inside the rear door and window decorative panel (101), and a rear door inner panel (103) disposed inside the rear door upper window frame (102). It also includes a glass back groove (104) disposed at the rear of the rear door and window decorative panel (101). The rear door and window decorative panel (101) includes a decorative panel body (1011) and a fixing position (1012) disposed inside the decorative panel body (1011). The rear door... The rear of the upper window frame (102) and the rear door inner panel (103) are both connected to the fixing position (1012). The glass back groove (104) includes a groove body (1041) and a sealing part (1042) connected to the groove body (1041). The front part of the groove body (1041) abuts against the rear door inner panel (103), and the rear part is snapped into the fixing position (1012). The sealing part (1042) is squeezed and sealed with the lip part (2021) in the front-back direction.

2. The vehicle body rear connection structure according to claim 1, characterized by The rear door and window assembly (1) further includes a glass front groove (106) and a rear door glass (105) located in front of the rear door and window decorative panel (101). The glass front groove (106) includes a first connecting part (1061), a second connecting part (1062), and a limiting lip (1063). The first connecting part (1061) is engaged with the rear end of the rear door glass (105), and the limiting lip (1063) abuts against the front end of the rear door and window decorative panel (101). The front ends of the rear door upper window frame (102) and the rear door inner panel (103) are connected to each other and engaged with the second connecting part (1062).

3. The rear vehicle body connection structure as described in claim 1, characterized in that, The rear vehicle body connection structure also includes a side panel assembly (3), which includes: Side panel (301) is disposed on the inner side of the side window assembly (2) and the rear door and window assembly (1); and A side drainage channel (302) is connected to the rear of the side outer panel (301). The lip portion (2021) located at the front of the side window assembly (201) seals against the side outer panel (301), and the lip portion (2021) located at the rear of the side window assembly (201) seals against the side drainage channel (302). The lip portion (2021) forms a sealed space between the side assembly (3) and the side window assembly (2).

4. The rear vehicle body connection structure as described in claim 3, characterized in that, The side panel assembly (3) further includes a door frame sealing strip (305) and a C-pillar inner panel (304) disposed inside the side panel outer panel (301). The front part of the C-pillar inner panel (304) is connected to the front part of the side panel outer panel (301), and the rear part of the C-pillar inner panel (304) is spaced apart from the side panel outer panel (301). The door frame sealing strip (305) is engaged at the connection between the C-pillar inner panel (304) and the side panel outer panel (301) and abuts against the rear door inner panel (103).

5. The rear vehicle body connection structure as described in claim 4, characterized in that, The side panel assembly (3) further includes a D-pillar reinforcing plate (303) disposed between the outer side panel (301) and the inner C-pillar panel (304). The rear part of the D-pillar reinforcing plate (303) is connected to the side panel water channel (302), and the front part is connected to the inner C-pillar panel (304). The middle area of ​​the D-pillar reinforcing plate (303) and the outer side panel (301) are distributed at intervals in the inward and outward directions.

6. The rear vehicle body connection structure as described in claim 5, characterized in that, The outer side panel (301) also includes an inner D-pillar panel (307) disposed inside the D-pillar reinforcing plate (303). The front part of the inner D-pillar panel (307) is connected to the rear part of the inner C-pillar panel (304), and the rear part of the inner D-pillar panel (307) is connected to the D-pillar reinforcing plate (303). The inner D-pillar panel (307) and the D-pillar reinforcing plate (303) form a reinforcing cavity in the inward and outward directions.

7. The rear vehicle body connection structure as described in claim 6, characterized in that, The side panel assembly (3) also includes a reinforcing plate (308) disposed in the reinforcing cavity, the reinforcing plate (308) being connected to the inner panel (307) of the D-pillar and the reinforcing plate (303) of the D-pillar respectively.

8. The rear vehicle body connection structure as described in claim 7, characterized in that, The reinforcing plate (308) includes a reinforcing body (3081) and reinforcing flanges (3082) located on opposite sides of the reinforcing body (3081). The reinforcing flanges (3082) are distributed at an angle to the reinforcing body (3081) and are connected to the inner plate (307) of the D-pillar. The reinforcing body (3081) is connected to the reinforcing plate (303) of the D-pillar.

9. The rear vehicle body connection structure as described in claim 1, characterized in that, The sealing edge (202) has a side window mounting position, a decorative panel mounting position, and a frame mounting position. The side window mounting position is located on the front side of the decorative panel mounting position, and the frame mounting position is located on the inner side of the decorative panel mounting position. The side window assembly (201) includes a side window body (2011) embedded in the side window mounting position, a side window decorative panel (2013) embedded in the decorative panel mounting position, and a support frame (2012) embedded in the frame mounting position. Both the support frame (2012) and the sealing edge (202) have a clearance area that avoids the side window body (2011).

10. A vehicle, characterized in that, It has the rear vehicle body connection structure as described in any one of claims 1-9.

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