Vehicle body rear structure and vehicle

Abstract

The application relates to the technical field of a vehicle body, and provides a vehicle body rear structure and a vehicle. The vehicle body rear structure comprises a decorative plate assembly installed at the rear of a vehicle body and a back door, wherein the rear of the decorative plate assembly is provided with a sealing surface arranged towards the inside of the vehicle, the rear end of the vehicle body panel is provided with a door frame sealing strip, the side of a window frame assembly of the back door towards the outside of the vehicle is provided with a window frame sealing strip, and in the state that the back door is closed, the front side of the window frame assembly abuts against the door frame sealing strip, and the window frame assembly abuts against the sealing surface through the window frame sealing strip. The vehicle body rear structure can form a double-sealing structure around the window frame assembly of the back door, so that the sealing performance of the back door of the vehicle can be improved, external rainwater can be effectively blocked from entering the vehicle, and the vehicle can be better prevented from being dusty and noisy.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to a rear vehicle body structure. This application also relates to a vehicle equipped with the aforementioned rear vehicle body structure. Background Technology

[0002] In the vehicle body structure, the rear structure is an important component. It not only needs to meet the requirements of aesthetics and overall appearance, but also needs to undertake core functions such as sealing, sound insulation, waterproofing and structural stability. Its design rationality directly affects the user experience and safety performance of the vehicle.

[0003] The rear structure of a vehicle typically includes sheet metal, trim panel assemblies, and a tailgate. The tailgate, in conjunction with the sheet metal, enables its opening and closing, while the trim panel assemblies primarily enhance the rear's appearance and aerodynamics. To achieve a seal, traditional structures often use a sealing strip between the sheet metal and the tailgate. The pressure exerted when the tailgate closes deforms the sealing strip, filling the gap between the sheet metal and the tailgate. However, this traditional sealing structure suffers from inadequate sealing performance. Utility Model Content

[0004] In view of this, this application aims to propose a rear structure of a vehicle body that can improve the sealing performance of the tailgate.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A rear structure of a vehicle body includes a trim panel assembly mounted at the rear of the vehicle body and a tailgate; The rear of the decorative panel assembly has a sealing surface facing the interior of the vehicle, a door frame sealing strip is installed at the rear end of the body sheet metal of the vehicle body, and a window frame sealing strip is installed on the exterior side of the window frame assembly of the tailgate. With the rear door closed, the front side of the window frame assembly abuts against the door frame sealing strip, and the window frame assembly abuts against the sealing surface through the window frame sealing strip.

[0006] Furthermore, the window frame assembly includes a window frame and a support corner provided at the connection between the horizontal beam and the vertical beam of the window frame; the window frame sealing strip includes a first sealing section located on the outer side wall of the window frame and a second sealing section surrounding the outer periphery of the support corner.

[0007] Furthermore, a groove is formed on the outer side wall, and the window frame sealing strip has a snap-fit ​​portion that snaps into the groove.

[0008] Furthermore, there are multiple card slots, which are arranged at intervals along the front-rear direction of the vehicle, and the card-connecting part corresponds to each card slot.

[0009] Furthermore, the window frame sealing strip has multiple first sealing lips, which are spaced apart along the front-rear direction of the vehicle, and the window frame sealing strip can press against the sealing surface through the multiple first sealing lips.

[0010] Furthermore, the rear side of the window frame is connected to the rear door glass of the rear door, and the window frame sealing strip has a second sealing lip that abuts against the rear door glass.

[0011] Furthermore, a first protrusion is provided on the side of the rear side away from the second sealing lip, and the first protrusion protrudes rearward from the rear side along the front-rear direction of the vehicle.

[0012] Furthermore, a first water-blocking portion and a second water-blocking portion are sandwiched between the top cover decorative component of the decorative panel assembly and the top cover sheet metal of the body sheet metal; the first water-blocking portion is arranged near the front end of the top cover decorative component, and the second water-blocking portion is located above the door frame sealing strip.

[0013] Furthermore, the portion of the top cover trim assembly near the sealing surface has a second protrusion that protrudes toward the rear of the vehicle; in the longitudinal direction of the vehicle, the second protrusion protrudes rearward relative to the tailgate glass of the tailgate.

[0014] Compared with related technologies, this application has the following advantages: (1) The rear structure of the vehicle body described in this application, through the door frame sealing strip set at the rear end of the body sheet metal and the window frame sealing strip on the window frame assembly of the tailgate, so that when the tailgate is closed, the front side of the window frame assembly abuts against the door frame sealing strip to form a first sealing barrier. At the same time, the window frame assembly abuts against the sealing surface of the decorative panel assembly through the window frame sealing strip to form a second sealing barrier. Thus, a double sealing structure is formed around the window frame assembly. This structure can improve the sealing performance between the tailgate and the rear end of the vehicle body. It can not only effectively block external rainwater from entering the vehicle, but also play a good role in dust prevention and noise reduction.

[0015] (2) The window frame assembly includes a window frame and a support corner. The window frame sealing strip includes a first sealing section and a second sealing section, such that the first sealing section is located on the outer wall of the window frame and the second sealing section surrounds the outer periphery of the support corner. This allows the structure of the tailgate and the structure of the window frame sealing strip to be well adapted to the existing vehicle body and play a good sealing role. At the same time, the support corner can also provide sufficient support strength for the second sealing section, which is conducive to ensuring the sealing performance of the second sealing section.

[0016] (3) A slot is provided on the outer side wall of the window frame so that the window frame sealing strip is snapped into the slot. This structure facilitates the installation of the window frame sealing strip on the window frame and has the characteristics of convenient installation, reliable installation and not easy to fall off.

[0017] (4) Set multiple slots spaced along the front and rear direction of the vehicle so that the snap-fit ​​part on the window frame sealing strip is snapped and connected to the slot one by one. This can enhance the fixing strength and reliability of the sealing strip, thereby further improving the stability of the sealing effect.

[0018] (5) Multiple first sealing lips are provided on the window frame sealing strip, so that the multiple first sealing lips are arranged at intervals along the front and rear direction of the vehicle. This can form multiple seals between the window frame assembly and the decorative panel assembly, which can better seal the gap between the window frame assembly and the decorative panel assembly and ensure the sealing reliability between the window frame assembly and the decorative panel assembly.

[0019] (6) The rear side door of the window frame is connected to the rear door glass in the tailgate, which can achieve surface contact sealing. This can not only ensure the stability of the tailgate glass installation, but also enhance the sealing between the tailgate glass and the tailgate window frame, reducing the penetration path of rainwater, dust and noise. At the same time, the second sealing lip set on the window frame sealing strip can better seal the gap between the window frame assembly and the tailgate glass, preventing external rainwater from entering the vehicle through the gap between the window frame assembly and the tailgate glass.

[0020] (7) A first protrusion is provided on the rear side of the window frame, which can cover the bonding part between the rear door glass and the window frame, improve the appearance quality of the rear door. At the same time, during the bonding process between the rear door glass and the window frame, the first protrusion can also prevent the adhesive from overflowing, which can also improve the appearance quality of the rear door.

[0021] (8) A first water-blocking part and a second water-blocking part are provided between the top cover decorative component and the top cover sheet metal, such that the first water-blocking part and the second water-blocking part are located at the front end and the rear end of the top cover decorative component, respectively. In this way, the first water-blocking part can block most of the water from passing through the gap between the top cover decorative component and the top cover sheet metal, and the second water-blocking part can block a small portion of the water that passes through the first water-blocking part. Thus, through the blocking of the two waterproof parts, a good waterproof protection can be formed between the top cover decorative component and the top cover sheet metal. At the same time, placing the second water-blocking part above the door frame sealing strip can also play a certain protective role for the door frame sealing strip, preventing rainwater that seeps into the gap between the top cover decorative component and the top cover sheet metal from directly soaking the door frame sealing strip, slowing down the aging rate of the door frame sealing strip, and indirectly ensuring the long-term stability of the first sealing barrier.

[0022] (9) The second protrusion provided on the roof trim component makes the second protrusion protrude rearward relative to the tailgate glass in the front-rear direction of the whole vehicle. In rainy weather, regardless of whether the vehicle is stationary or moving forward, when rainwater flows down from the roof trim component, most of the rainwater flows directly onto the tailgate glass, which can effectively prevent most of the rainwater from entering the vehicle through the gap between the roof trim component and the tailgate glass.

[0023] Another object of this application is to provide a vehicle having a rear body structure as described above.

[0024] The vehicle described in this application, by adopting the aforementioned rear body structure, can form a double-seal structure around the window frame assembly of the tailgate, thereby improving the sealing performance of the tailgate, effectively preventing external rainwater from entering the vehicle, and providing better dust and noise prevention, thus improving the overall sealing performance of the vehicle. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a partial structural diagram of the rear structure of the vehicle body described in an embodiment of this application; Figure 2 This is a structural schematic diagram of the fit between the tailgate and the top cover decorative assembly and the top cover sheet metal as described in the embodiments of this application. Figure 3 This is a partial structural diagram of the top cover decorative assembly and the top cover sheet metal described in the embodiments of this application; Figure 4 This is a partial enlarged view of the rear door described in an embodiment of this application; Figure 5 This is a structural diagram of the rear door from a first-view perspective, as described in an embodiment of this application. Figure 6 This is a structural diagram of the rear door from a second perspective, as described in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the window frame assembly described in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Top cover decorative components; 2. Rear door; 3. Top cover sheet metal; 4. Door frame sealing strip; 5. Window frame sealing strip; 6. Structural adhesive; 11. Top cover trim frame; 12. Top cover trim body; 111. First trim frame; 112. Second trim frame; 120. Sealing surface; 121. Second protrusion; 21. Window frame assembly; 211. Window frame; 212. Support corner; 22. Rear door glass; 23. Rear door sheet metal assembly; 2111. Slot; 2112. First protrusion; 211a. Crossbeam; 211b. Longitudinal beam; 31. Top cover outer panel; 32. Top cover reinforcing plate; 50A. First sealing section; 50B. Second sealing section; 51. First sealing lip; 52. Second sealing lip; 10. First water-blocking section; 20. Second water-blocking section; d. Window. Detailed Implementation

[0026] To make the technical solution and advantages of 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 not intended to limit the scope of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] In the accompanying drawings of this application, the front-rear direction refers to the front-rear direction of the vehicle, which usually refers to the length direction of the vehicle; the left-right direction refers to the left-right direction of the vehicle, which usually refers to the width direction of the vehicle; and the up-down direction refers to the height direction of the vehicle.

[0032] In the attached diagram: the arrows point forward to the front of the vehicle, backward to the rear, upward to the top, and downward to the bottom. When sitting in the driver's seat facing the front of the vehicle, the left side is where your left hand is, and the right side is where your right hand is. In the diagram, the left arrow points to the left side of the vehicle, and the right arrow points to the right side.

[0033] The terms "inner" and "outer" are relative. "Inner" refers to the interior space of the vehicle, while "outer" refers to the exterior of the vehicle, that is, the location away from the interior space.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] An embodiment of the first aspect of this application provides a rear vehicle structure that improves the sealing performance between the rear of the vehicle and the rear door by optimizing the mating structure between the rear of the vehicle and the rear door.

[0036] In related technologies, the rear structure of a vehicle typically includes sheet metal, trim panel assemblies, and a tailgate. The tailgate, in conjunction with the sheet metal, enables its opening and closing function, while the trim panel assemblies primarily enhance the appearance and aerodynamics of the rear of the vehicle. To achieve a seal, traditional structures often incorporate a sealing strip between the sheet metal and the tailgate. The sealing strip deforms due to the pressure exerted when the tailgate closes, filling the gap between the sheet metal and the tailgate. However, this traditional sealing structure suffers from inadequate sealing performance.

[0037] The structure of a tailgate typically includes an inner tailgate panel and an outer tailgate panel. Both panels are made of metal, such as steel, and are formed using a stamping process. The inner and outer tailgate panels are welded together, and both have stamped windows. Because the inner and outer tailgate panels are formed into a single, stamped structure, this type of tailgate assembly is generally referred to as a one-piece tailgate assembly.

[0038] For unibody tailgates, because the tailgate window frame and lower sheet metal are formed by stamping as a single piece, the tailgate sheet metal assembly is wider in the lateral direction of the vehicle due to the stamping process and rigidity limitations. This reduces the driver's rear visibility. Furthermore, because both the inner and outer tailgate panels are made of steel, the overall weight of the tailgate assembly is relatively heavy. With the increasing demand for weight reduction and cost reduction, split tailgates have emerged.

[0039] A split-type tailgate, in terms of structure, mainly consists of a "∩"-shaped window frame and a roughly square tailgate sheet metal assembly. The tailgate window frame and the tailgate sheet metal assembly are connected together to form the window for installing glass. Because the tailgate window frame and the tailgate sheet metal assembly are manufactured separately, this type of tailgate is called a split-type tailgate.

[0040] In the structure of a split tailgate, both the tailgate sheet metal components and the tailgate window frame are made of metal. In order to effectively reduce the weight of the tailgate assembly and improve rear visibility and passability, the inventors have invented a tailgate window frame that is "∩" shaped. It is made of aluminum profile and formed by a roll forming process to create a narrow-sided structure. In other words, the window frame is narrower in the left-right direction compared to a one-piece tailgate.

[0041] At this point, because the window frame of the split tailgate uses an extruded part with a relatively small cross section, the width of the sealing surface between the tailgate window frame and the rear end of the body sheet metal is reduced. After the vehicle is assembled, due to precision control, movement deformation and other reasons, it is easy to cause the risk of water leakage.

[0042] In view of this, in order to overcome the shortcomings of the related technology, the rear structure of the vehicle body in this embodiment combines... Figures 1 to 7 As shown, the overall design includes a trim panel assembly installed at the rear of the vehicle body, and a tailgate 2.

[0043] The decorative panel assembly has a sealing surface 120 facing the interior of the vehicle at its rear. A door frame sealing strip 4 is installed at the rear end of the body sheet metal. A window frame sealing strip 5 is installed on the exterior side of the window frame assembly 21 of the tailgate 2. When the tailgate 2 is closed, the front side of the window frame assembly 21 abuts against the door frame sealing strip 4, and the window frame assembly 21 abuts against the sealing surface 120 through the window frame sealing strip 5.

[0044] At this time, through the door frame sealing strip 4 set at the rear end of the body sheet metal and the window frame sealing strip 5 on the window frame assembly 21 of the tailgate 2, when the tailgate 2 is closed, the front side of the window frame assembly 21 presses against the door frame sealing strip 4, forming the first sealing barrier. At the same time, the window frame assembly 21 presses against the sealing surface 120 of the decorative panel assembly through the window frame sealing strip 5, forming the second sealing barrier. Thus, a double sealing structure is formed around the window frame assembly 21. This structure can improve the sealing performance between the tailgate 2 and the rear end of the body, which can not only effectively prevent external rainwater from entering the vehicle, but also play a good role in dust prevention and noise reduction.

[0045] It should be noted that the tailgate in the aforementioned rear structure of the vehicle body is particularly suitable for split tailgates; however, it can also be understood that it is applicable to integrated tailgates. Additionally, it should be noted that the aforementioned door frame sealing strip 4 can, for example, adopt a mature structure from existing technologies.

[0046] Based on the above overview, specifically, to facilitate a better understanding of this application, the rear structure of the vehicle body is described in general terms. The rear structure typically includes side panels located on both sides of the vehicle in the left-right direction, and a roof panel 3 that connects the two side panels together. The trim assembly includes a side trim assembly (not shown in the figure) located at the rear of the side panels, and a roof trim assembly 1 located at the rear of the roof panel 3.

[0047] For example Figure 1 As shown, the top cover trim assembly 1 includes a top cover trim frame 11 and a top cover trim body 12 mounted on the top cover trim frame 11. The top cover trim frame 11 includes a first trim frame 111 supported inside the top cover trim body 12 and a second trim frame 112 mounted on the rear of the top cover sheet metal 3. The second trim frame 112 is snap-fitted to the first trim frame 111 and can support the first trim frame 111.

[0048] In practice, the first trim panel frame 111 and the second trim panel frame 112 are fixed to the top cover sheet metal 3, for example, by screwing. After the top cover trim panel frame 11 is fixed to the top cover sheet metal 3, the top cover trim panel body 12 is fixed to the top cover trim panel frame 11, for example, by snap-fitting.

[0049] Continue reading Figure 1As shown, in this embodiment, the top cover sheet metal 3 includes a top cover outer plate 31 and a top cover reinforcing plate 32 disposed inside the top cover outer plate 31. The top cover reinforcing plate 32 is welded to the top cover outer plate 31. The aforementioned door frame sealing strip 4 includes a first part that snaps onto the butt weld position between the top cover reinforcing plate 32 and the top cover outer plate 31, and a second part that snaps onto the rear ends of the side sheet metal on both sides.

[0050] In practical implementation, the door frame sealing strip 4 is interference-fitted with the front side of the window frame assembly 21. The interference amount can be set between 6.5mm and 7mm, such as 6.6mm, 6.7mm, 6.8mm, 6.9mm or 7mm. This can ensure the sealing performance between the front side of the window frame assembly 21 and the roof sheet metal 3, as well as between the front side of the window frame assembly 21 and the side sheet metal, and can effectively prevent water entering through the window frame sealing strip 5 from re-entering the vehicle.

[0051] This embodiment uses a split-type rear tailgate 2 as an example for illustration. The structure of the rear tailgate 2 is as follows: Figures 5 to 7 As shown, it includes a “∩”-shaped window frame 211 and a roughly square rear door sheet metal assembly 23. The window frame 211 and the rear door sheet metal assembly 23 are connected together to form a window d for installing glass.

[0052] Reference Figure 6 and Figure 7 As shown, in some exemplary embodiments, the window frame assembly 21 includes, for example, a window frame 211 and a support corner 212 located at the connection between the horizontal beam 211a and the vertical beam 211b of the window frame 211. The window frame sealing strip 5 includes a first sealing section 50A located on the outer wall of the window frame 211 and a second sealing section 50B surrounding the outer periphery of the support corner 212.

[0053] By configuring a window frame assembly with a window frame 211 and a support corner 212, and a window frame sealing strip 5 with a first sealing section 50A and a second sealing section 50B, the first sealing section 50A is located on the outer wall of the window frame 211, and the second sealing section 50B surrounds the outer periphery of the support corner 212. This allows the structure of the tailgate 2 and the window frame sealing strip 5 to be well adapted to the existing vehicle body, achieving a good sealing effect. At the same time, the support corner 212 can also provide sufficient support strength for the second sealing section 50B, which helps to ensure the sealing performance of the second sealing section 50B.

[0054] Specifically, refer to Figure 7As shown, the window frame 211 is shaped like a "∩" and has a horizontal beam 211a and longitudinal beams 211b connecting both sides of the horizontal beam 211a. Supporting angles 212 are provided at the connection points of the horizontal beam 211a and the two longitudinal beams 211b. These supporting angles 212 are approximately triangular in shape, and in a preferred embodiment, they are made of a metal material, such as aluminum or steel, and are fixed to the connection points of the horizontal beam 211a and the longitudinal beams 211b by welding, screwing, or other methods.

[0055] Reference Figure 6 As shown, the first sealing section 50A of the window frame sealing strip 5 is located on the outer wall of the window frame 211, that is, the first sealing section 50A is located on the outer wall of the horizontal beam 211a and the two longitudinal beams 211b. Furthermore, when the window frame sealing strip 5 passes around the connection between the horizontal beam 211a and the longitudinal beams 211b, it surrounds the outer periphery of the support corner 212 through the second sealing section 50B. The support corner 212 can support the window frame sealing strip 5, so that the window frame sealing strip 5 bends along a preset path.

[0056] The sealing surface 120, which is arranged at the rear of the trim panel assembly facing the interior of the vehicle, includes, for example, a first sealing surface 120 located at the rear of the side trim assembly and a second sealing surface 120 located at the rear of the roof trim assembly 1, i.e., the roof trim panel body 12. The first sealing surface 120 is located on the side of the side trim assembly facing the interior of the vehicle in the left-right direction, and the second sealing surface 120 is located on the downward-facing side of the roof trim assembly 1 in the vertical direction.

[0057] With the tailgate 2 closed, the first sealing section 50A located on the outer side of the longitudinal beam 211b abuts against the first sealing surface 120, and the first sealing section 50A located on the outer side of the transverse beam 211a abuts against the second sealing surface 120. The second sealing section 50B abuts against the connection between the first sealing surface 120 and the second sealing surface 120, that is, the portion of the second sealing section 50B extending along the left-right direction of the vehicle seals the gap between the tailgate 2 and the vehicle roof, and the portion of the second sealing section 50B extending along the up-down direction of the vehicle seals the gap between the tailgate 2 and the vehicle side panel. At the same time, it cooperates with the front side of the window frame assembly 21 to abut against the door frame sealing strip 4 at the rear end of the body sheet metal, thereby improving the sealing performance of the tailgate 2 and effectively reducing the risk of water leakage at the tailgate 2.

[0058] It is worth noting that the window frame sealing strip 5 in this embodiment preferably adopts an integrally molded structure, that is, each first sealing section 50A and each second sealing section 50B are connected together, which makes processing and assembly more convenient.

[0059] Reference Figure 1As shown, in some exemplary embodiments, for example, a groove 2111 is formed on the outer wall of the window frame 211, and the window frame sealing strip 5 has a snap-fit ​​portion that snaps into the groove 2111. In specific embodiments, the groove 2111 extends along the contour of the window frame 211. Through the snap-fit ​​engagement of the snap-fit ​​portion with the groove 2111, the window frame sealing strip 5 is snapped onto the outer side of the window frame 211. This structural form facilitates the installation of the window frame sealing strip 5 on the window frame 211, and has the characteristics of convenient installation, reliable installation, and not easy to fall off.

[0060] In some exemplary embodiments, the slots 2111 are provided in multiple ways, with the slots 2111 spaced apart along the front-rear direction of the vehicle, and the engaging parts corresponding one-to-one with the slots 2111. In this way, the window frame sealing strip 5 is engaged in the multiple slots 2111 by the multiple engaging parts, which can enhance the fixing strength and reliability of the sealing strip, thereby further improving the stability of the sealing effect.

[0061] It should be noted that, in addition to having multiple card slots, having only one is also possible, and this embodiment does not impose any restrictions on this.

[0062] Reference Figure 1 and Figure 2 and combined Figure 4 As shown, in some exemplary embodiments, the window frame sealing strip 5 has, for example, a plurality of first sealing lips 51, which are spaced apart along the longitudinal direction of the vehicle. The window frame sealing strip 5 can abut against the cover 120 through the plurality of first sealing lips 51. In this case, by providing a plurality of first sealing lips 51 on the window frame sealing strip 5, and by arranging the plurality of first sealing lips 51 spaced apart along the longitudinal direction of the vehicle, multiple seals can be formed between the window frame assembly 21 and the trim panel assembly, which can better seal the gap between the window frame assembly 21 and the trim panel assembly, and ensure the reliability of the seal between the window frame assembly 21 and the trim panel assembly.

[0063] Specifically, multiple first sealing lips 51 extend along the extension direction of the window frame sealing strip 5, and the multiple first sealing lips 51 are arranged at intervals along the front-to-back direction of the vehicle. Furthermore, preferably, along the front-to-back direction of the vehicle, the interference fit between the multiple first sealing lips 51 and the sealing surface 120 increases sequentially. This not only forms multiple seals, but also allows the rearmost first sealing lip 51 to play the primary sealing role first, reducing the material usage of the remaining first sealing lips 51 and thus lowering the cost of the sealing strip.

[0064] In specific implementation, the window frame sealing strip 5 has two first sealing lips 51 arranged at intervals along the front-rear direction of the vehicle. The first sealing lip 51 closer to the rear side of the two first sealing lips 51 has an interference of 2.0mm-2.5mm with the sealing surface 120. The other first sealing lip 51 can be clearance fit with the sealing surface 120 or interference fit with the sealing surface 120.

[0065] It is worth noting that, in addition to the two provided above, the first sealing lip 51 can also be provided as three, four or more, etc.

[0066] Reference Figure 1 As shown, in some exemplary embodiments, for example, the rear side of the window frame 211 is connected to the rear door glass 22 of the tailgate 2, and the window frame sealing strip 5 has a second sealing lip 52 that abuts against the rear door glass 22. Here, in a preferred embodiment, the rear side of the window frame 211 and the rear door glass 22 of the tailgate 2 are bonded together with adhesive, which can achieve surface contact sealing. This ensures the stability of the installation of the rear door glass 22 and enhances the sealing between the rear door glass 22 and the window frame 211, reducing the penetration path of rainwater, dust, and noise. At the same time, the second sealing lip 52 provided on the window frame sealing strip 5 can effectively seal the gap between the window frame assembly 21 and the rear door glass 22, preventing external rainwater from entering the vehicle through the gap between the window frame assembly 21 and the rear door glass 22.

[0067] In practice, the rear side door of the window frame 211 and the rear door glass 22 of the rear door 2 are connected by structural adhesive 6, for example. This connection method has the characteristics of high connection strength and good stability, which can ensure that the window frame 211 is accurately positioned and not easily displaced during vehicle operation. It can provide a stable structural reference for the sealing of the seal and the fixing of the rear door glass 22, and prevent the sealing gap from increasing due to loose connection.

[0068] The second sealing lip 52, like the first sealing lip 51, extends along the extension direction of the window frame sealing strip 5. At this time, the window frame sealing strip 5, in addition to having the first sealing lip 51, also has a second sealing lip 52 that abuts against the tailgate glass 22. This effectively prevents external rainwater from entering the vehicle through the gaps between the window frame assembly 21 and the sealing surface 120 on the trim panel assembly, and between the window frame assembly 21 and the tailgate glass 22, thereby further improving the sealing performance of the tailgate 2.

[0069] Combination Figure 1 , Figure 2 and Figure 4As shown, in some exemplary embodiments, for example, a first protrusion 2112 is provided on the rear side away from the second sealing lip 52, and the first protrusion 2112 protrudes rearward from the rear side along the front-rear direction of the vehicle. In this way, the first protrusion 2112 can cover the bonding area between the tailgate glass 22 and the window frame 211, improving the appearance quality of the tailgate 2. At the same time, during the bonding process between the tailgate glass 22 and the window frame 211, the first protrusion 2112 can also prevent adhesive from overflowing, which can also improve the appearance quality of the tailgate 2.

[0070] The first protrusion 2112 also extends along the extension direction of the window frame sealing strip 5. In a preferred embodiment, the window frame 211 contacts the rear door glass 22 through the first protrusion 2112, which can better prevent adhesive overflow.

[0071] Reference Figure 1 As shown, in some exemplary embodiments, a first water-retaining portion 10 and a second water-retaining portion 20 are sandwiched between the top cover trim assembly 1 of the trim panel assembly and the top cover sheet metal 3 of the body sheet metal. The first water-retaining portion 10 is arranged near the front end of the top cover trim assembly 1, and the second water-retaining portion 20 is located above the door frame sealing strip 4, that is, the second water-retaining portion 20 is arranged at the rear end of the top cover trim assembly 1.

[0072] With this configuration, the first water-blocking part 10 can block most of the water from passing through the gap between the top cover decorative component 1 and the top cover sheet metal 3, while the second water-blocking part 20 can block a small portion of the water from passing through the first water-blocking part 10. Thus, through the blocking of the two waterproof parts, a better waterproof protection can be formed between the top cover decorative component 1 and the top cover sheet metal 3.

[0073] Meanwhile, placing the second water-blocking part 20 above the door frame sealing strip 4 can also provide a certain degree of protection for the door frame sealing strip 4, preventing rainwater that seeps between the top cover decorative component 1 and the top cover sheet metal 3 from directly soaking the door frame sealing strip 4, slowing down the aging rate of the door frame sealing strip 4, and indirectly ensuring the long-term stability of the first sealing barrier.

[0074] In specific implementation, the first water-blocking part 10 and the second water-blocking part 20 are preferably made of non-absorbent sponge water-blocking strips. Both water-blocking strips are bonded to the top cover trim panel assembly 1, and the interference between the two water-blocking strips and the top cover sheet metal is between 2.2mm and 2.7mm. For example, the interference can be set to 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm or 2.7mm, etc.

[0075] Reference Figures 1 to 3As shown, in some exemplary embodiments, for example, the top cover trim assembly 1 has a second protrusion 121 protruding toward the rear of the vehicle at a location near the sealing surface 120, and in the longitudinal direction of the vehicle, the second protrusion 121 protrudes rearward relative to the tailgate glass 22 of the tailgate 2.

[0076] Here, the second protrusion 121 provided on the roof trim assembly 1 causes the second protrusion 121 to protrude rearward relative to the tailgate glass 22 in the front-rear direction of the whole vehicle. In rainy weather, regardless of whether the vehicle is stationary or moving forward, when rainwater flows down from the roof trim assembly 1, most of the rainwater flows directly onto the tailgate glass 22, which can effectively prevent most of the rainwater from entering the vehicle through the gap between the roof trim assembly 1 and the tailgate glass 22.

[0077] In practical implementation, the distance of the second protrusion 121 is as follows: Figure 2 As shown, the distance L between the outermost part of the second protrusion 121 and the outer side of the rear door glass 22 can be set between 2mm and 4mm, for example, 2mm, 3mm or 4mm.

[0078] It is worth noting that, regarding the rear structure of the vehicle body in this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 7 As shown, it may include, for example, a trim panel assembly installed at the rear of the vehicle body, and a tailgate 2. The rear of the trim panel assembly has a sealing surface 120 facing the interior of the vehicle. A door frame sealing strip 4 is installed at the rear end of the body sheet metal of the vehicle body, and a window frame sealing strip 5 is installed on the exterior side of the window frame assembly 21 of the tailgate 2. When the tailgate 2 is closed, the front side of the window frame assembly 21 abuts against the door frame sealing strip 4, and the window frame assembly 21 abuts against the sealing surface 120 through the window frame sealing strip 5.

[0079] The window frame assembly 21 includes a window frame 211 and a support corner 212. The window frame 211 is shaped like a "∩" and has a horizontal beam 211a and longitudinal beams 211b connecting both sides of the horizontal beam 211a. The support corner 212 is located at the connection between the horizontal beam 211a and the longitudinal beams 211b. The window frame sealing strip 5 includes a first sealing section 50A located on the outer wall of the window frame 211 and a second sealing section 50B surrounding the outer periphery of the support corner 212.

[0080] The outer wall of the window frame 211 has a groove 2111 formed therein, and the window frame sealing strip 5 has a snap-fit ​​part that snaps into the groove 2111. Furthermore, there are multiple grooves 2111, which are arranged at intervals along the front-rear direction of the vehicle, and the snap-fit ​​parts correspond one-to-one with the grooves 2111.

[0081] The window frame sealing strip 5 has multiple first sealing lips 51, which are spaced apart along the front-rear direction of the vehicle. The window frame sealing strip 5 can abut against the cover 120 through the multiple first sealing lips 51. Furthermore, the window frame sealing strip 5 also has second sealing lips 52, which abut against the tailgate glass 22 of the tailgate 2. The rear side of the window frame 211 is bonded to the tailgate glass 22 of the tailgate 2.

[0082] Among them, a first protrusion 2112 is provided on the side of the rear side of the window frame 211 that is away from the second sealing lip 52. The first protrusion 2112 protrudes rearward from the rear side along the front-rear direction of the whole vehicle.

[0083] Among them, a first water-blocking part 10 and a second water-blocking part 20 are sandwiched between the top cover decorative component 1 of the decorative panel assembly and the top cover sheet metal 3 of the body sheet metal; the first water-blocking part 10 is arranged near the front end of the top cover decorative component 1, and the second water-blocking part 20 is located above the door frame sealing strip 4.

[0084] The top cover trim assembly 1 has a second protrusion 121 protruding towards the rear of the vehicle at the part near the sealing surface 120; in the front-rear direction of the vehicle, the second protrusion 121 protrudes rearward relative to the tailgate glass 22 of the tailgate 2.

[0085] In the preferred embodiment of the above-described rear structure of the vehicle body, the specific settings and arrangements of the window frame assembly 21, the window frame sealing strip 5, and the mating structure between the roof trim assembly 1 and the roof sheet metal 3 can still be referred to the descriptions in the above-described exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the mating structure between the window frame assembly 21, the window frame sealing strip 5, and the roof trim assembly 1 and the roof sheet metal 3 can also be referred to the descriptions in the above-described exemplary embodiments.

[0086] The rear structure of the vehicle body in this embodiment adopts the above design. By cooperating with the sealing structure between the front side of the window frame assembly 21 and the door frame sealing strip 4, and the sealing structure between the window frame assembly 21 and the sealing surface 120 of the decorative assembly, two seals can be formed at the tailgate 2. This can improve the sealing performance of the tailgate 2, effectively prevent external rainwater from entering the vehicle, and also play a good role in dust prevention and noise reduction.

[0087] An embodiment of the second aspect of this application provides a vehicle having a rear body structure as described above.

[0088] In this embodiment, by applying the aforementioned rear body structure, a double-sealed structure can be formed around the window frame assembly 21 of the tailgate 2, thereby improving the sealing performance of the tailgate 2 in the vehicle, effectively preventing external rainwater from entering the vehicle, and providing better dust and noise prevention, thus improving the overall sealing performance of the vehicle.

[0089] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A rear structure of a vehicle body, characterized in that: Includes a trim panel assembly installed at the rear of the vehicle body, and a tailgate (2); The rear of the decorative panel assembly has a sealing surface (120) facing the interior of the vehicle, and a door frame sealing strip (4) is installed at the rear end of the body sheet metal of the vehicle body, and a window frame sealing strip (5) is installed on the exterior side of the window frame assembly (21) of the tailgate (2). With the back door (2) closed, the front side of the window frame assembly (21) abuts against the door frame sealing strip (4), and the window frame assembly (21) abuts against the sealing surface (120) through the window frame sealing strip (5).

2. The rear structure of the vehicle body according to claim 1, characterized in that: The window frame assembly (21) includes a window frame (211) and a support corner (212) provided at the connection between the horizontal beam (211a) and the vertical beam (211b) of the window frame (211). The window frame sealing strip (5) includes a first sealing section (50A) located on the outer wall of the window frame (211) and a second sealing section (50B) surrounding the outer periphery of the support corner (212).

3. The rear structure of the vehicle body according to claim 2, characterized in that: The outer side wall is formed with a groove (2111), and the window frame sealing strip (5) has a snap-fit ​​part that snaps into the groove (2111).

4. The rear structure of the vehicle body according to claim 3, characterized in that: There are multiple slots (2111), and the multiple slots (2111) are arranged at intervals along the front and rear direction of the vehicle. The snap-fit ​​part corresponds to each slot (2111).

5. The rear structure of the vehicle body according to claim 4, characterized in that: The window frame sealing strip (5) has a plurality of first sealing lips (51) arranged at intervals along the front-rear direction of the vehicle, and the window frame sealing strip (5) can press against the sealing surface (120) through the plurality of first sealing lips (51).

6. The rear structure of the vehicle body according to claim 2, characterized in that: The rear side of the window frame (211) is connected to the rear door glass (22) of the rear door (2), and the window frame sealing strip (5) has a second sealing lip (52) that abuts against the rear door glass (22).

7. The rear structure of the vehicle body according to claim 6, characterized in that: A first protrusion (2112) is provided on the side of the rear side away from the second sealing lip (52), and the first protrusion (2112) protrudes rearward from the rear side along the front-rear direction of the vehicle.

8. The rear structure of the vehicle body according to any one of claims 1-7, characterized in that: A first water-blocking part (10) and a second water-blocking part (20) are sandwiched between the top cover decorative assembly (1) of the decorative panel assembly and the top cover sheet metal (3) of the body sheet metal. The first water-blocking part (10) is arranged near the front end of the top cover decorative assembly (1), and the second water-blocking part (20) is located above the door frame sealing strip (4).

9. The rear structure of the vehicle body according to claim 8, characterized in that: The portion of the top cover trim assembly (1) near the sealing surface (120) has a second protrusion (121) that protrudes toward the rear of the vehicle. In the longitudinal direction of the vehicle, the second protrusion (121) protrudes rearward relative to the rear door glass (22) of the rear door (2).

10. A vehicle, characterized in that: The vehicle is provided with a rear body structure as described in any one of claims 1-9.

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