Door system and vehicle

Abstract

The application provides a vehicle door system and a vehicle. The vehicle door system comprises a roof assembly, a side wall assembly connected with the roof assembly, and a door assembly arranged on the side wall assembly. In a closed state of the door assembly, an upper edge of the door assembly extends to the roof assembly and forms a butt joint with the roof assembly. The side wall assembly is located on an inner side of the door assembly and the roof assembly. The vehicle door system optimizes a connection relationship, eliminates exposed split joints, improves vehicle body aesthetics, and improves sealing reliability.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, specifically relating to a door system and a vehicle. Background Technology

[0002] As the automotive industry upgrades towards high-end and refined products, the market has placed more stringent demands on the overall aesthetics, sealing reliability, and structural safety of vehicle bodies. As a core load-bearing structure and a key component of the vehicle's appearance, the door system's design directly determines the vehicle's side-view visual harmony, passenger compartment sealing performance, and driving safety redundancy. Furthermore, the design of the connection structure between the upper window frame of the door assembly and related components is a core technical point affecting the overall performance of the vehicle body and has long been a focus of industry attention.

[0003] In traditional framed car door systems, the upper window frame and side panel components typically employ a gap-joint structure. This design creates a noticeable gap at the joint, disrupting the visual unity of the vehicle's side profile and diminishing its overall refinement, failing to meet current consumer demands for high-quality exterior design. Furthermore, the gap increases the difficulty of designing a sealing structure; a single sealing strip cannot achieve effective sealing around the entire circumference, easily creating airflow channels and water seepage paths. This can lead to wind noise at high speeds, leaks in rainy weather or during car washes, severely impacting driving and passenger comfort.

[0004] In existing technologies, some solutions attempt to improve the sealing effect by optimizing the sealing strip structure, but they do not fundamentally change the structural form of the connection between the upper window frame and the side panel of the door assembly. The problems of exposed gaps and insufficient sealing reliability have not been effectively solved.

[0005] Therefore, there is an urgent need for a door system structure and vehicle that can optimize component connections, eliminate exposed seams, and improve sealing performance. Summary of the Invention

[0006] To address some or all of the aforementioned technical problems in the prior art, this invention proposes a door system and a vehicle. This door system optimizes the connection relationship, eliminates exposed gaps, and improves the vehicle's aesthetics and sealing reliability.

[0007] According to one aspect of the present invention, a vehicle door system is provided, comprising:

[0008] Top cover assembly,

[0009] The side panel assembly connected to the top cover assembly,

[0010] The door assembly is mounted on the side panel assembly.

[0011] In the closed state of the door assembly, the upper edge of the door assembly extends to the roof assembly and forms a butt joint with the roof assembly, and the side panel assembly is located inside the door assembly and the roof assembly.

[0012] In one embodiment, a top seam sealing strip is provided on the side panel assembly. When the door assembly is closed, the top seam sealing strip is disposed within the butt joint to seal between the door assembly and the roof assembly.

[0013] In one embodiment, the top cover assembly includes a top cover body and a top cover trim strip disposed on the top cover body, wherein the top cover trim strip is provided with an anti-collision sealing strip, and the anti-collision sealing strip is sealed to the top seam sealing strip.

[0014] In one embodiment, the top cover trim has a concave groove on the side facing the anti-collision sealing strip, and the side of the anti-collision sealing strip near the top cover trim is engaged in the concave groove. The side of the anti-collision sealing strip near the top seam sealing strip is constructed as an outwardly convex arc surface.

[0015] In one embodiment, a support rib is provided protrudingly on the outer wall of the concave groove, and the support rib is used to abut against the anti-collision sealing strip.

[0016] In one embodiment, the top seam sealing strip includes:

[0017] The main body segment is bubble-shaped and has a hook-shaped protrusion at its end that protrudes towards the anti-collision sealing strip.

[0018] A connecting segment, which is fixed to the main body segment, is connected to the side panel assembly via a snap-fit ​​mechanism.

[0019] A first claw-shaped segment, connected to the connecting segment and extending between the anti-collision sealing strip and the side panel assembly, is provided with a first sealing strip portion protruding toward the side panel assembly.

[0020] A second claw-shaped segment is disposed on the connecting segment and extends toward the door assembly, and a second sealing strip portion protruding toward the side panel assembly is provided on the second claw-shaped segment.

[0021] In one embodiment, a door frame sealing strip is provided on the inner door panel of the door assembly, and when the door assembly is closed, the door frame sealing strip is sealed to the corresponding mating surface of the side panel assembly.

[0022] In one embodiment, a window frame decorative panel is provided on the inner side of the inner panel of the door assembly, one end of the window frame decorative panel being connected to the door frame sealing strip and the other end being connected to the glass guide groove of the door assembly.

[0023] In one embodiment, a door opening sealing strip is provided at the door opening stop of the side panel assembly, and when the door assembly is closed, the door opening sealing strip is sealed against the window frame decorative panel.

[0024] According to one aspect of the present invention, a vehicle is provided, including the aforementioned door system.

[0025] Compared with existing technologies, the advantages of this invention are as follows: By extending the upper edge of the door assembly to the roof assembly to form a joint seam, and with the side panel assembly located inside the door and roof assemblies, the joint gap is visually reduced. This creates a continuous and smooth visual unity between the side panel assembly, roof assembly, and the upper window frame of the door assembly, significantly enhancing the overall refinement and aesthetic integration of the vehicle, aligning with the trend towards high-end automotive design. The inner placement of the side panel assembly, combined with the connection between the upper window frame of the door assembly and the roof assembly, creates a more robust sealing foundation, reducing wind noise and the risk of water leakage. It also provides structural support for the sealing strip at the top seam, effectively improving driving and riding comfort. Attached Figure Description

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which:

[0027] Figure 1 A front view of a door system according to an embodiment of the present invention is shown;

[0028] Figure 2 From Figure 1 BB and B'-B' cross-sectional views;

[0029] Figure 3 From Figure 2 Enlarged view of point A;

[0030] Figure 4 A rear view of a door system according to an embodiment of the present invention is shown;

[0031] Figure 5 A side panel assembly according to an embodiment of the present invention is shown.

[0032] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0033] To make the technical solutions and advantages of the present invention clearer, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0034] In the description of this invention, the terms "first," "second," etc., used in the specification, claims, and accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Embodiments of the present invention provide a vehicle door system. For example... Figures 1 to 5 As shown, the door system includes a roof assembly 100, a side panel assembly 200, and a door assembly 300. The side panel assembly 200 is connected to the roof assembly 100. The door assembly 300 is connected to the side panel assembly 200. When the door assembly 300 is closed, its upper edge, i.e., the upper window frame, extends to the roof assembly 100, forming a butt joint 400 with it. Simultaneously, when the door assembly 300 is closed, the side of the side panel assembly 200 closest to the door assembly 300 is located inside the door assembly 300 and the roof assembly 100.

[0037] As can be seen, the upper window frame of the door assembly 300 extends to the roof assembly 100 to form a connecting seam 400. The side panel assembly 200 is located inside the door assembly 300 and roof assembly 100 and is not exposed, visually reducing the connecting seam gap. This creates a continuous and smooth visual unity between the roof assembly 100 and the upper window frame of the door assembly 300, significantly enhancing the overall refinement and aesthetic integration of the vehicle, aligning with the trend of high-end automotive design. The inner layout of the side panel assembly 200, combined with the connection between the upper window frame of the door assembly 300 and the roof assembly 100, constructs a more robust sealing foundation, helping to reduce wind noise and the risk of water leakage. It also provides structural support for the proper fit of the roof seam sealing strip 210, effectively improving driving and riding comfort.

[0038] Let's look again. Figure 2and 3 A top seam sealing strip 210 is provided on the side panel assembly 200. When the door assembly 300 is closed, the top seam sealing strip 210 is positioned within the butt joint 400, sealingly located between the upper window frame of the door assembly 300 and the roof assembly 100. That is, when the door assembly 300 is closed, the top seam sealing strip 210 on the side panel assembly 200 is precisely embedded within the butt joint 400, completely filling the gap between the upper window frame of the door assembly 300 and the roof assembly 100 through elastic deformation, creating a highly airtight sealing structure. This design fundamentally blocks the water seepage path and also reduces wind noise at high speeds. It should be noted that when there are two door assemblies 300 on one side of the vehicle, the cross-sectional view of the upper window frame of the door assembly 300 is the same, therefore... Figure 1 The sectional views at positions BB and B'-B' are presented in Figure 2 middle.

[0039] The roof assembly 100 includes a roof body (not shown) and a roof trim 120. The roof trim 120 is fitted onto the roof body. Anti-collision sealing strips 130 are provided on the outer sides of the roof trim 120 in the left and right directions. The anti-collision sealing strips 130 are sealed to the top seam sealing strip 210. The roof assembly 100, through the fitted assembly of the roof body and the roof trim 120, ensures both the flatness and aesthetics of the vehicle's roof structure and provides a stable mounting base for the anti-collision sealing strips 130. The anti-collision sealing strips 130 on the roof trim 120 form a sealed connection with the top seam sealing strip 210 of the side panel assembly 200, constructing a double-sealed protective structure that completely blocks airflow and water seepage paths at the joint 400, significantly improving sealing reliability. Simultaneously, the anti-collision sealing strips 130 also have a buffering and anti-collision function, mitigating the impact stress when the door assembly 300 is closed, reducing wear on the sealing structure, and extending its service life.

[0040] Structurally, the top cover trim 120 has a recessed groove 121 on the side facing the anti-collision sealing strip 130. The side of the anti-collision sealing strip 130 near the top cover trim 120 connects to the recessed groove 121 to ensure the anti-collision sealing strip 130 is connected to the top cover trim 120. For example, multiple barbed clips 131 are spaced apart along the length of the anti-collision sealing strip 130, and the barbed clips 131 engage with the recessed groove 121 to stably connect the anti-collision sealing strip 130 to the top cover trim 120. The side of the anti-collision sealing strip 130 near the top seam sealing strip 210 is constructed with an outwardly convex arc surface to press against the top seam sealing strip 210. The length of the anti-collision sealing strip 130 generally extends along the longitudinal direction of the vehicle and covers the upper window frame area of ​​the door assembly 300. The concave groove 121 of the top cover trim 120 provides precise snap-fit ​​positioning for the anti-collision sealing strip 130. Compared with traditional adhesive or simple bonding methods, this significantly improves the connection strength and effectively avoids the risk of detachment due to vibration and aging during long-term use. Assembly is also convenient and efficient. The convex arc-shaped design of the anti-collision sealing strip 130 allows it to form a surface-fit seal when in contact with the top seam sealing strip 210. This increases the sealing contact area and provides a certain degree of error correction and compensation capability, adapting to slight displacements caused by assembly deviations or vibrations. Combined with the fixing effect of the concave groove 121, a stable and reliable double sealing structure is constructed, completely blocking the airflow and water seepage path at the joint 400, significantly improving sealing performance.

[0041] A supporting rib 122 is protruding from the outer wall of the concave groove 121. This supporting rib 122 abuts against the anti-collision sealing strip 130 to support it. This design ensures that the impact force transmitted from the top seam sealing strip 210 to the anti-collision sealing strip 130 is distributed along multiple paths, preventing stress concentration on the concave groove 121's frame structure. This significantly improves the overall impact resistance, effectively preventing deformation or damage to the concave groove 121 due to impact, while also ensuring the stability of the anti-collision sealing strip 130 under stress and extending the structure's service life.

[0042] The top cover trim 120 can be made of aluminum alloy. The anti-collision sealing strip 130 is made of ethylene propylene diene monomer (EPDM) rubber.

[0043] The top seam sealing strip 210 includes a main body section 211, a connecting section 212, a first claw-shaped section 213, and a second claw-shaped section 214. The main body section 211 is bubble-shaped. At the end of the main body section 211, a hook-shaped protrusion 215 is provided, protruding towards the anti-collision sealing strip 130. This hook-shaped protrusion 215 is pressure-connected to the anti-collision sealing strip 130, which not only strengthens the sealing performance of the connection between the two, but also uses the elasticity of the bubble structure to buffer the impact, ensuring both sealing and anti-collision effects.

[0044] The connecting section 212 is fixed to the main body section 211 and is used to set the buckle 216 for connection to the side panel assembly 200. That is, the top seam sealing strip 210 is fixed to the side panel assembly 200 by the buckle 216 set in the connecting section 212.

[0045] Both the first claw-shaped segment 213 and the second claw-shaped segment 214 are disposed on the connecting segment 212 and extend to both sides respectively. Specifically, the first claw-shaped segment 213 extends between the anti-collision sealing strip 130 and the side panel assembly 200. Furthermore, a first sealing strip portion 217 protruding towards the side panel assembly 200 is provided on the first claw-shaped segment 213. This first sealing strip portion 217 pressurizes against the side panel assembly 200. There can be multiple first sealing strip portions 217, for example, two. The second claw-shaped segment 214 extends towards the door assembly 300. A second sealing strip portion 218 protruding towards the side panel assembly 200 is provided on the second claw-shaped segment 214. The second sealing strip portion 218 pressurizes against the side panel assembly 200.

[0046] The top seam sealing strip 210 achieves multiple technical advantages through a multi-segment collaborative structural design. The bubble-shaped main body segment 211 combines elastic buffering and sealing core functions, while the hook-shaped protrusion 215 at the end is pressure-connected to the anti-collision sealing strip 130, enhancing both the fit and sealing performance and the elastic dispersion of impact loads through the bubble structure, achieving dual protection of sealing and impact resistance. The snap-fit ​​216 of the connecting segment 212 securely mounts the top seam sealing strip 210 to the side panel assembly 200, improving installation reliability and structural stability. The first claw-shaped segment 213 extends between the anti-collision sealing strip 130 and the side panel assembly 200, with its two first sealing strip portions 217 pressure-bearing against the side panel assembly 200 to form multiple sealing barriers. The second sealing strip portion 218 of the second claw-shaped segment 214 simultaneously achieves sealing protection. The extension of the second claw-shaped segment 214 towards the door assembly 300 also provides a buffering function. It is evident that the top seam sealing strip works in multiple directions to block rainwater and dust intrusion, significantly improving sealing redundancy, adapting to complex working conditions, and extending the service life of the overall structure.

[0047] The main body section 211, connecting section 212, first claw-shaped section 213, and second claw-shaped section 214 can be a single integrated component. The top seam sealing strip 210 can be made of ethylene propylene diene monomer (EPDM) rubber. The top seam sealing strip 210, using EPDM material to integrally mold the main body section 211, connecting section 212, and two claw-shaped sections, combines excellent weather resistance and elasticity, adapting to complex working conditions and providing a durable seal. The integrated structure eliminates the splicing process, improving overall strength and stability, preventing joint failure, and simplifying the processing and assembly process, thus balancing reliability and production economy.

[0048] The door assembly 300 includes an outer door panel 360 and an inner door panel 310, which are joined together by an edge-sealing structure to form the door sheet metal structure. The upper edge of the door assembly 300, i.e., the upper window frame boundary, extends to the roof assembly 100, forming a Z-direction butt joint with the roof trim panel 120. When the door assembly 300 is closed, the top seam sealing strip 210 is located between the door sheet metal structure and the roof trim panel 120. From the outside, the outer surfaces of the door sheet metal structure, the roof trim panel 120, and the top seam sealing strip 210 are roughly on the same curved surface. This arrangement optimizes the smoothness of the vehicle's exterior appearance, strengthens the sealing of the butt joint, blocks rainwater and dust, and enhances the overall refinement and sealing reliability of the vehicle.

[0049] A door frame sealing strip 320 is provided on the inner door panel 310 of the door assembly 300. It should be noted that if there are two door assemblies 300 on one side of the vehicle, front and rear, then door frame sealing strips 320 are provided on the inner door panels 310 of both door assemblies 300. Each door frame sealing strip 320 is circumferentially closed at the corresponding door frame of the door assembly 300. When the door assembly 300 is closed, the door frame sealing strip 320 is sealed to the corresponding mating surface of the side panel assembly 200. For example, the door frame sealing strip 320 is constructed as a bubble-shaped sealing strip. During the closing process of the door assembly 300, the door frame sealing strip 320 is compressed by the side panel assembly 200, forming a full-area sealing barrier. The door frame sealing strip 320 effectively blocks the intrusion of rainwater and dust, while also cushioning the impact of door closing, reducing wind noise, and improving driving comfort through its elasticity. The door frame sealing strip 320 is made of ethylene propylene diene monomer (EPDM) rubber.

[0050] A window frame trim panel 330 is provided on the inner side of the inner door panel 310 of the door assembly 300. One end of the window frame trim panel 330 is connected to the door frame sealing strip 320, and the other end is connected to the glass guide channel 340 of the door assembly 300, forming a continuous assembly structure. This window frame trim panel 330 not only covers the exposed sheet metal of the corresponding window frame of the door assembly 300, optimizing the visual effect of the vehicle interior, but also assists in sealing and preventing dust intrusion, while protecting the sheet metal from scratches and corrosion, thus combining aesthetics and practicality, and enhancing the overall refinement and reliability of the vehicle.

[0051] A door opening sealing strip 230 is provided at the door opening stop 220 of the side panel assembly 200. It should be noted that if there are two door assemblies 300 on one side of the vehicle, front and rear, then door opening sealing strips 230 are provided at the corresponding door opening stops 220 of each door assembly 300. Specifically, the door opening sealing strip 230 is attached to the door opening stop 220 via a U-shaped snap-fit ​​connector 240. When the door assembly 300 is closed, the door opening sealing strip 230 abuts against the window frame trim panel 330 to provide a seal. The U-shaped snap-fit ​​connector 240 securely attaches the door opening sealing strip 230 at the door opening stop 220 of the side panel assembly 200, ensuring reliable installation and preventing it from easily falling off. When the door assembly 300 is closed, the door opening sealing strip 230 tightly abuts against the window frame trim panel 330, forming an effective sealing barrier that prevents rainwater and dust from entering, while also cushioning the impact of closing the door, blocking external noise, and improving the overall vehicle sealing and ride quietness. The door opening sealing strip 230 is made of ethylene propylene diene monomer (EPDM) rubber.

[0052] A window frame upper trim panel 350 is provided on the inside of the door assembly 300. This window frame upper trim panel 350 covers the exposed sheet metal of the upper window frame of the door, providing a good visual effect.

[0053] Let's look again. Figure 4 and 5 If a vehicle has two door assemblies 300 on one side, namely a front door assembly and a rear door assembly, an A-pillar strip 371 is provided on the front door assembly. This A-pillar strip 371 extends along the vertical direction of the vehicle and follows the shape of the door assembly 300, located at the front end of the door assembly 300. When the front door assembly is closed, the A-pillar strip 371 is located between the door assembly 300 and the side panel assembly 200, providing a seal. Similarly, a C-pillar strip 372 is provided on the rear door assembly. This C-pillar strip 372 extends along the vertical direction of the vehicle and follows the shape of the door assembly 300, located at the rear end of the door assembly 300. When the rear door assembly is closed, the C-pillar strip 372 is located between the door assembly 300 and the side panel assembly 200, providing a seal. Sill strips 373 are also provided on the front door assembly and the rear door assembly, respectively. These sill strips 373 are located at the lower end of the corresponding door assembly 300 and extend generally along the longitudinal direction of the vehicle. When the corresponding door assembly is closed, the sill strip 373 is located between the door assembly 300 and the side panel assembly 200, providing a seal. Additionally, a B-pillar strip 374 is provided on the rear door assembly. This B-pillar strip 374 extends along the vertical direction of the vehicle and conforms to the installation position of the door assembly 300. When the door assembly 300 is closed, the B-pillar strip 374 is located between the two door assemblies 300 on the same side, providing a seal.

[0054] On each door assembly 300, the top seam sealing strip 210, the A-pillar seam strip 371 (or C-pillar seam strip 372), the sill strip 373, and the B-pillar seam strip 374 form a circumferentially closed sealing ring, creating a seal at the outermost edge of the door assembly 300. It can be seen that for each door assembly 300, from the outer edge to the center, three seals are sequentially provided: the top seam sealing strip 210 (together with the A-pillar seam strip 371 or C-pillar seam strip 372, sill strip 373, and B-pillar seam strip 374), the door frame sealing strip 320, and the door opening sealing strip 230. These three layers of sealing strips provide comprehensive protection, effectively preventing rainwater and dust intrusion, while also reducing external noise and door closing impact through multiple elastic buffers, significantly improving sealing redundancy and ensuring sealing reliability and durability under complex operating conditions.

[0055] It is readily understood that if a vehicle has a door assembly 300 on one side, the number and position of the sealing strips can be adjusted accordingly, but it is still possible to ensure that a triple seal is formed by the top seam sealing strip 210, the door frame sealing strip 320, and the door opening sealing strip 230. This adaptive arrangement is foreseeable to those skilled in the art and will not be elaborated upon here.

[0056] This application also relates to vehicles. Vehicles include the aforementioned door system.

[0057] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and / or modifications falling within the scope of the invention, and all changes and / or modifications made according to embodiments of the invention should be covered within the protection scope of the invention.

Claims

1. A vehicle door system characterized by, include: Top cover assembly, The side panel assembly connected to the top cover assembly, The door assembly is mounted on the side panel assembly. In the closed state of the door assembly, the upper edge of the door assembly extends to the roof assembly and forms a butt joint with the roof assembly. The side panel assembly is located inside the door assembly and the roof assembly. A top seam sealing strip is provided on the side panel assembly. In the closed state of the door assembly, the top seam sealing strip is disposed within the butt joint to seal between the door assembly and the roof assembly. The roof assembly includes a roof body and a roof trim strip disposed on the roof body. An anti-collision sealing strip is provided on the roof trim strip. The anti-collision sealing strip is sealed to the top seam sealing strip. A concave groove is provided on the side of the roof trim strip facing the anti-collision sealing strip. The side of the anti-collision sealing strip near the roof trim strip is engaged in the concave groove. One side of the seal is constructed as an outwardly convex arc surface. A supporting rib is provided on the outer wall of the concave groove. The supporting rib is used to abut against the anti-collision sealing strip. The top seam sealing strip includes a main body section, a connecting section, a first claw-shaped section, and a second claw-shaped section. The main body section is constructed as a bubble and has a hook-shaped protrusion at the end that protrudes toward the anti-collision sealing strip. The connecting section is fixed to the main body section and is connected to the side panel assembly by a snap fastener. The first claw-shaped section is connected to the connecting section and is used to extend between the anti-collision sealing strip and the side panel assembly. A first sealing strip portion protruding toward the side panel assembly is provided on the first claw-shaped section. The second claw-shaped section is provided to the connecting section and is used to extend toward the door assembly. A second sealing strip portion protruding toward the side panel assembly is provided on the second claw-shaped section.

2. The vehicle door system of claim 1, wherein A door frame sealing strip is provided on the inner panel of the door assembly. When the door assembly is closed, the door frame sealing strip is sealed to the corresponding mating surface of the side panel assembly.

3. The vehicle door system of claim 2, wherein, A window frame decorative panel is provided on the inner side of the inner panel of the door assembly. One end of the window frame decorative panel is connected to the door frame sealing strip and the other end is connected to the glass guide groove of the door assembly.

4. The door system according to claim 3, characterized in that, A door opening sealing strip is provided at the door opening stop of the side panel assembly. When the door assembly is closed, the door opening sealing strip is sealed against the window frame decorative panel.

5. A vehicle, characterized in that, Includes the door system according to any one of claims 1 to 4.

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