Dual-action door seal and vehicle
By installing seals on the outer side panels, the problem of messy gaps in the trim panels of vehicles with B-pillar split doors was solved, improving the sealing and aesthetics of the doors and simplifying the body structure and manufacturing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-08-04
AI Technical Summary
In existing vehicles with split doors on the B-pillar, the side B-pillar trim panel has messy seams and uneven steps between the glass and the trim panel, affecting its aesthetics.
A seal is installed on the outer side panel. The seal works in conjunction with the front and rear door assemblies to ensure airtightness, reduce surface differences, and improve the appearance.
The design of the sealing components improves the sealing performance and aesthetics of the front and rear doors, simplifies the vehicle body structure, and reduces manufacturing difficulty and assembly complexity.
Smart Images

Figure CN224588914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a double-door sealing structure and a vehicle. Background Technology
[0002] With the rapid development of the automotive industry and the improvement of people's living standards, people's performance demands for automobiles have become more diversified, especially the requirements for cabin usage scenarios, convenience, comfort, and aesthetic appearance.
[0003] In related technologies, the side B-pillar trim panels of vehicles with B-pillar suicide doors have many gaps, making them look messy. There is also a step difference between the glass and the trim panel. After opening the door, the side B-pillar trim panels with sealing strips and the dark and light color matching affect the aesthetics of the suicide doors. Utility Model Content
[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a double-door sealing structure, which ensures the sealing performance of the front door assembly and the rear door assembly by setting a sealing element on the outer side panel, reduces the surface difference between the front door assembly and the rear door assembly, and improves the aesthetic appearance of the vehicle body.
[0005] This utility model also proposes a vehicle.
[0006] According to a first aspect of the present invention, a double-door sealing structure includes: a vehicle body, including a side panel and an A-pillar, a B-pillar, and a C-pillar arranged sequentially at intervals in the front-rear direction; a front door assembly, the front side of which is rotatably connected to the A-pillar; a rear door assembly, the rear side of which is rotatably connected to the C-pillar; and a sealing member disposed on the side panel and extending along the height direction, wherein the rear side of the front door assembly can interfere with one side of the sealing member, and the front side of the rear door assembly can interfere with the other side of the sealing member.
[0007] According to the double-door sealing structure of this utility model embodiment, by setting a sealing element on the outer side panel, the sealing performance of the front door assembly and the rear door assembly is ensured, the surface difference between the front door assembly and the rear door assembly is reduced, and the aesthetic appearance of the vehicle body is improved.
[0008] According to some embodiments of the present invention, the sealing element includes: a first sealing part and a second sealing part, the first sealing part and the second sealing part being connected, and the first sealing part and the second sealing part respectively interfering with the front door assembly and the rear door assembly.
[0009] According to some embodiments of the present invention, the sealing element includes: a support portion, the support portion being connected to the first sealing portion and the second sealing portion, and a first cavity being formed between the support portion and the first sealing portion, and a second cavity being formed between the support portion and the second sealing portion.
[0010] According to some embodiments of the present invention, one end of the first sealing part is provided with a first sealing lip, the first sealing lip extending toward the outer side panel and interfering with the outer side panel; and / or, one end of the second sealing part is provided with a second sealing lip, the second sealing lip extending toward the outer side panel and interfering with the outer side panel.
[0011] According to some embodiments of the present invention, an adhesive is provided between the sealing element and the outer side panel.
[0012] According to some embodiments of the present invention, the sealing member is provided with a first snap-fit portion on the side facing the outer side panel, and a second snap-fit portion is provided on the outer side panel, wherein the first snap-fit portion and the second snap-fit portion snap-fit together.
[0013] According to some embodiments of the present invention, the first snap-fit part is a buckle, the second snap-fit part is a snap-fit hole, and the buckle snaps into the snap-fit hole.
[0014] According to some embodiments of the present invention, the sealing element is provided with a wear-resistant coating on the side opposite to the outer side panel.
[0015] According to some embodiments of the present invention, the front door assembly includes: a front door B-pillar trim panel and a front door, the front door being connected to the front door B-pillar trim panel, and the front door B-pillar trim panel interfering with one side of the seal; and the rear door assembly includes: a rear door B-pillar trim panel and a rear door, the rear door B-pillar trim panel interfering with the other side of the seal.
[0016] The vehicle according to a second aspect of the present invention includes: the aforementioned double-door sealing structure.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram showing the cooperation between the sealing element and the front door assembly and the rear door assembly according to an embodiment of the present utility model;
[0020] Figure 2 This is a schematic diagram of the installation of the sealing element according to an embodiment of the present utility model;
[0021] Figure 3 The sealing element according to the embodiment of this utility model is used in conjunction with the front door B-pillar trim panel and the rear door assembly.
[0022] Figure 4 This is a schematic diagram of the sealing element of the rear door assembly when it is opened according to an embodiment of the present utility model;
[0023] Figure 5 This is a schematic diagram of the connection between the sealing element and the outer side panel according to an embodiment of the present utility model. Figure 1 ;
[0024] Figure 6 This is a schematic diagram of the connection between the sealing element and the outer side panel according to an embodiment of the present utility model. Figure 2 .
[0025] Figure label:
[0026] 11. Front door assembly; 111. Front door B-pillar trim panel; 112. Front door; 12. Rear door assembly; 121. Rear door B-pillar trim panel; 122. Rear door; 13. Side panel;
[0027] 20. Sealing element; 21. First sealing part; 22. Second sealing part; 23. Support part; 231. First section; 232. Second section; 233. Third section; 24. First sealing lip; 25. Second sealing lip; 26. First snap-fit part; 27. First cavity; 28. Second cavity;
[0028] 31. Adhesive components. Detailed Implementation
[0029] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.
[0030] The following is for reference. Figures 1-6 The present invention describes a double-door sealing structure according to an embodiment of the present invention, and also proposes a vehicle including the above-described double-door sealing structure.
[0031] Combination Figure 1 and Figure 2 As shown, the double-door sealing structure includes: a vehicle body, a front door assembly 11 and a rear door assembly 12. The front door assembly 11 and the rear door assembly 12 are connected to the vehicle body, and the opening or closing directions of the front door assembly 11 and the rear door assembly 12, which are located on the same side of the vehicle in the width direction, are opposite.
[0032] The vehicle body includes a side panel 13, and A-pillars, B-pillars, and C-pillars arranged sequentially in the front-rear direction. Specifically, the vehicle body includes: a B-pillar located between the A-pillar and the C-pillar; the side panel 13 covering the outer side of the B-pillar; the front side of the front door assembly 11 rotatably connected to the A-pillar; the front door assembly 11 rotating around the A-pillar to open or close the front door 112; and the rear side of the rear door assembly 12 rotatably connected to the C-pillar, that is, the rear door assembly 12 rotating around the C-pillar to open or close the rear door 122.
[0033] The front door assembly 11 and the rear door assembly 12 of this utility model can be unordered double doors. The front door assembly 11 can be opened first, or the rear door assembly 12 can be opened first. The opening of the front door assembly 11 and the rear door assembly 12 does not affect each other.
[0034] There is no side B-pillar trim between the front door assembly 11 and the rear door assembly 12, reducing the number of vehicle parts and weight, thus achieving vehicle lightweighting. When the front door assembly 11 and the rear door assembly 12 are closed, the gap between the rear side of the front door assembly 11 and the front side of the rear door assembly 12 can be between 3.5mm and 5mm, ensuring the aesthetics of the front door assembly 11 and the rear door assembly 12 when closed. The absence of a side B-pillar trim between the front door assembly 11 and the rear door assembly 12 avoids any surface difference between them on the side.
[0035] Furthermore, the gap between the rear side of the front door assembly 11 and the front side of the rear door assembly 12 can be 4 mm or 4.5 mm.
[0036] Among them, the sealing element 20 can be a sealing bubble tube, and the support part 23 can be a solid adhesive.
[0037] The door sealing mechanism further includes a seal 20, which is disposed on the outer side panel 13 and extends along the height direction. The rear side of the front door assembly 11 interferes with one side of the seal 20, and the front side of the rear door assembly 12 interferes with the other side of the seal 20. Specifically, the seal 20 is connected to the outer side panel 13 and is correspondingly disposed with the B-pillar. The seal 20 can be connected to the outer side panel 13 by snap-fit and / or adhesive bonding. There is a gap between the rear side of the front door assembly 11 and the front side of the rear door assembly 12. The seal 20 is disposed opposite to this gap so that when the front door assembly 11 and the rear door assembly 12 are closed, the seal 20 interferes with the rear side of the front door assembly 11 and the front side of the rear door assembly 12.
[0038] The parts of the seal 20 that interfere with the rear side of the front door assembly 11 and the front side of the rear door assembly 12 are deformable areas. When compressed, they deform and form an interference fit with either the front door assembly 11 or the rear door assembly 12 to ensure a tight seal. When the front door assembly 11 is closed, the front side of the seal 20 deforms under pressure, and the seal 20 forms an interference fit with the front door assembly 11 to ensure the vehicle's tightness. When the rear door assembly 12 is closed, the rear side of the seal 20 deforms under pressure, and the rear side of the seal 20 forms an interference fit with the rear door assembly 12 to ensure the vehicle's tightness.
[0039] In the longitudinal direction of the vehicle, that is, in the longitudinal direction of the vehicle, the front side of the seal 20 interferes with the rear side of the front door assembly 11, and the rear side of the seal 20 interferes with the front side of the rear door assembly 12, so as to ensure the sealing of the front door assembly 11 and the rear door assembly 12.
[0040] Therefore, by eliminating the B-pillar side panel, and by installing a sealant 20 on the outer side panel 13, the sealing performance of the front door assembly 11 and the rear door assembly 12 is ensured, the surface difference between the front door assembly 11 and the rear door assembly 12 is reduced, and the aesthetic appearance of the vehicle body is improved. Eliminating the B-pillar side panel reduces the number and width of the panels in terms of appearance, and also lowers the overall vehicle assembly difficulty and accelerates the vehicle's production line speed. Not only is the appearance simplified, but the number of DTS (Distributed Tactical Systems) that need to be controlled in the entire vehicle is also reduced, lowering manufacturing difficulty.
[0041] Combination Figure 1 , Figures 3-6 As shown, the seal 20 includes a first sealing part 21 and a second sealing part 22, which are connected to each other. The first sealing part 21 and the second sealing part 22 are respectively interference-fitted with the front door assembly 11 and the rear door assembly 12. Specifically, the first sealing part 21 is located on the front side of the seal 20 and faces outwards from the vehicle. The first sealing part 21 selectively interferes with the rear side of the front door assembly 11. When the front door assembly 11 is open, the first sealing part 21 is in a free state. When the front door assembly 11 is closed, the first sealing part 21 is deformed by pressure. That is, the first sealing part 21 is interference-fitted with the rear side of the front door assembly 11 to ensure the sealing between the front door assembly 11 and the vehicle body.
[0042] The second sealing part 22 is located on the rear side of the seal 20 and is disposed facing the outside of the vehicle. The second sealing part 22 selectively interferes with the front side of the rear door assembly 12. When the rear door assembly 12 is opened, the second sealing part 22 is in a free state. When the rear door assembly 12 is closed, the second sealing part 22 is deformed by pressure. That is, the second sealing part 22 is interference-fitted with the front side of the rear door assembly 12 to ensure the sealing between the rear door assembly 12 and the vehicle body.
[0043] like Figure 1 As shown, Figure 1 The dashed lines represent the structure of the first sealing part 21 and the second sealing part 22 under pressure.
[0044] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the seal 20 includes a support portion 23, which is connected to a first sealing portion 21 and a second sealing portion 22. A first cavity 27 is formed between the support portion 23 and the first sealing portion 21, and a second cavity 28 is formed between the support portion 23 and the second sealing portion 22. Specifically, the first cavity 27 formed by the support portion 23 and the first sealing portion 21 provides space for the first sealing portion 21 to deform under pressure when it interferes with the rear side of the front door assembly 11; the second cavity 28 formed between the support portion 23 and the second sealing portion 22 provides space for the second sealing portion 22 to deform under pressure when it interferes with the front side of the rear door assembly 12.
[0045] like Figure 4 As shown, the support portion 23 includes a first segment 231, a second segment 232, and a third segment 233. The second segment 232 and the third segment 233 are connected. The first segment 231 is perpendicular to the second segment 232 and the third segment 233. The first segment 231, the second segment 232, and the first sealing portion 21 form a first cavity 27. The third segment 233, the first segment 231, and the second sealing portion 22 form a second cavity 28. The support portion 23 forms a stable support structure and supports the first sealing portion 21 and the second sealing portion 22, ensuring the posture of the seal 20 after the door is closed, thus ensuring the sealing effect between the seal 20 and the front door assembly 11 and the rear door assembly 12. On the other hand, the seal 20 may age and deform after prolonged use, and the support portion 23 can provide support for the first sealing portion 21 and the second sealing portion 22 to extend the service life of the seal 20.
[0046] like Figure 1 , Figures 3-6 As shown, a first sealing lip 24 is provided at one end of the first sealing part 21. The first sealing lip 24 extends toward the outer side panel 13 and interferes with the outer side panel 13. When the door is closed, the first sealing lip 24 interferes with the outer side panel 13. The first sealing lip 24 can ensure that there is no gap between the sealing element 20 and the outer side panel 13 when the door is open, avoiding exposure of the connection between the sealing element 20 and the outer side panel 13, thus improving aesthetics. In addition, the first sealing lip 24 can prevent water from entering between the sealing element 20 and the outer side panel 13, ensuring the sealing performance between the front side of the sealing element 20 and the outer side panel 13.
[0047] Furthermore, a second sealing lip 25 is provided at one end of the second sealing part 22. The second sealing lip 25 extends toward the outer side panel 13 and interferes with the outer side panel 13. When the door is closed, the second sealing lip 25 interferes with the outer side panel 13. The second sealing lip 25 can ensure that there is no gap between the sealing element 20 and the outer side panel 13 when the door is open, avoiding exposure of the connection between the sealing element 20 and the outer side panel 13, thus improving aesthetics. In addition, the second sealing lip 25 can prevent water from entering between the sealing element 20 and the outer side panel 13, ensuring the sealing performance between the rear side of the sealing element 20 and the outer side panel 13.
[0048] like Figure 1 and Figure 4 As shown, an adhesive 31 is provided between the seal 20 and the side panel 13. In order to better fix the seal 20, the seal 20 and the side panel 13 can be connected by the adhesive 31. The adhesive 31 is provided on the side of the seal 20 facing the side panel 13 so as to install the seal 20 on the side panel 13 and ensure the sealing effect between the seal 20 and the front door assembly 11 and the rear door assembly 12.
[0049] Additionally, the adhesive 31 may include a first adhesive 31 and a second adhesive 31. The first adhesive 31 is located on the front side of the seal 20 facing the side outer panel 13, and the second adhesive is located on the rear side of the seal 20 facing the side outer panel 13. The first adhesive 31 fixes the front and rear sides of the seal 20 respectively, so that the posture of the seal 20 can be guaranteed after the door is closed, thereby ensuring the sealing effect between the seal 20 and the front door assembly 11 and the rear door assembly 12.
[0050] according to Figure 1 , Figures 3-6 As shown, the sealing element 20 has a first snap-fit portion 26 on the side facing the outer side panel 13, and a second snap-fit portion on the outer side panel 13. The first snap-fit portion 26 and the second snap-fit portion snap together. Specifically, the sealing element 20 has a first snap-fit portion 26, which snaps together with the second snap-fit portion on the outer side panel 13 to achieve the installation and fixation of the sealing element 20. The first snap-fit portion 26 can also position the sealing element 20, positioning its X-axis (front-back direction) and Y-axis (left-right direction) positions, thus maintaining the stability of the sealing element 20's posture.
[0051] The first snap-fit part 26 is a snap-fit, and the second snap-fit part is a snap-fit hole. The snap-fit and the snap-fit hole snap together. Specifically, by opening a snap-fit hole on the outer side panel 13 and providing a snap-fit on the sealing member 20, the snap-fit and the snap-fit hole snap together, so that the sealing member 20 is snapped and connected to the outer side panel 13, and the sealing member 20 is installed on the outer side panel 13.
[0052] In some embodiments, there may be multiple buckles and multiple snap-fit holes. Multiple buckles are spaced apart along the length of the seal 20, and multiple buckles engage with multiple snap-fit holes respectively to ensure the connection strength between the seal 20 and the side panel 13 and to improve the installation accuracy of the seal 20.
[0053] In some embodiments, the buckle is provided with a retaining edge and a limiting part, and the side outer plate 13 is located between the retaining edge and the limiting part. The retaining edge can seal the sealing element 20 to prevent water, sand, dust, etc. from entering and contaminating the sheet metal through the snap-fit hole on the side outer plate 13.
[0054] Furthermore, the gap between two adjacent snaps can be between 100-150 mm to ensure the connection strength between the seal 20 and the side panel 13.
[0055] In some embodiments, a wear-resistant coating is provided on the side of the seal 20 facing away from the side panel 13. Specifically, since the front door assembly 11 and the rear door assembly 12 need to be opened and closed frequently, the surface of the seal 20 needs to be in frequent contact and friction with the front door assembly 11 and the rear door assembly 12; on the other hand, the position directly opposite the gap between the seal 20 and the front door assembly 11 and the rear door assembly 12 is exposed to the outside and needs to be exposed to wind and rain erosion. Therefore, a wear-resistant coating is provided on the side of the seal 20 facing the outside of the vehicle to extend the service life of the seal 20.
[0056] like Figure 2 and Figure 3 As shown, the front door assembly 11 includes a front door B-pillar trim panel 111 and a front door 112. The front door 112 is connected to the front door B-pillar trim panel 111, and the front door B-pillar trim panel 111 has an interference fit with one side of the seal 20. That is, for the aesthetics and structural design of the door, the front door B-pillar trim panel 111 is provided on the rear side of the front door 112, and the front door B-pillar trim panel 111 can have an interference fit with the first sealing part 21. Figure 3 and Figure 4 As shown, when the front door assembly 11 is closed, the first sealing part 21 is deformed by pressure, and the front door B-pillar trim panel 111 interferes with the first sealing part 21.
[0057] Furthermore, the rear door assembly 12 includes a rear door B-pillar trim panel 121 and a rear door 122, with the rear door B-pillar trim panel 121 interfering with the other side of the seal 20. Specifically, for the aesthetics and structural design of the door, the rear door B-pillar trim panel 121 is located on the front side of the rear door 122. For example... Figure 3 As shown, when the rear door assembly 12 is closed, the second sealing part 22 is deformed by pressure, and the rear door B-pillar trim panel 121 interferes with the second sealing part 22.
[0058] According to a second aspect embodiment of the present invention, a vehicle includes a double-door sealing structure. The front door 112 and rear door 122 of the vehicle adopt a double-door layout. The front side of the front door 112 is rotatably connected to the A-pillar, which can be a hinged connection; the rear side of the rear door 122 is rotatably connected to the C-pillar, also using a hinged connection. Both the front door 112 and the rear door 122 can be opened independently without being restricted by the closed / open state of the other door; that is, the front door 112 and the rear door 122 can be opened and closed in a disordered manner. The B-pillar side panel is eliminated, and a sealing element 20 is provided on the outer side panel 13 to ensure the sealing of the front door assembly 11 and the rear door assembly 12, reducing the surface difference between the front door assembly 11 and the rear door assembly 12, and improving the aesthetic appearance of the vehicle body.
[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model.
[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.
[0061] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A double-door sealing structure, characterized in that, include: The vehicle body includes the side outer panel (13) and the A-pillar, B-pillar and C-pillar arranged sequentially in the front-rear direction; The front door assembly (11) is rotatably connected to the A-pillar on its front side; The rear door assembly (12) is rotatably connected to the C-pillar at its rear side; A seal (20) is disposed on the side panel (13) and extends along the height direction. The rear side of the front door assembly (11) can interfere with one side of the seal (20), and the front side of the rear door assembly (12) can interfere with the other side of the seal (20).
2. The double-door sealing structure according to claim 1, characterized in that, The sealing element (20) includes a first sealing part (21) and a second sealing part (22), the first sealing part (21) and the second sealing part (22) are connected, and the first sealing part (21) and the second sealing part (22) respectively interfere with the front door assembly (11) and the rear door assembly (12).
3. The double-door sealing structure according to claim 2, characterized in that, The sealing element (20) includes: a support portion (23), which is connected to the first sealing portion (21) and the second sealing portion (22), and a first cavity (27) is formed between the support portion (23) and the first sealing portion (21), and a second cavity (28) is formed between the support portion (23) and the second sealing portion (22).
4. The double-door sealing structure according to claim 2, characterized in that, One end of the first sealing part (21) is provided with a first sealing lip (24), the first sealing lip (24) extends toward the side outer plate (13) and interferes with the side outer plate (13); and / or, The second sealing part (22) has a second sealing lip (25) at one end, which extends toward the side panel (13) and interferes with the side panel (13).
5. The double-door sealing structure according to claim 1, characterized in that, An adhesive component (31) is provided between the sealing element (20) and the side panel (13).
6. The double-door sealing structure according to claim 1, characterized in that, The sealing element (20) has a first snap-fit part (26) on the side facing the outer side panel (13), and the outer side panel (13) has a second snap-fit part, and the first snap-fit part (26) and the second snap-fit part snap-fit together.
7. The double-door sealing structure according to claim 6, characterized in that, The first snap-fit part (26) is a snap fastener, and the second snap-fit part is a snap-fit hole. The snap fastener snaps into the snap-fit hole.
8. The double-door sealing structure according to claim 1, characterized in that, The seal (20) is provided with a wear-resistant coating on the side opposite to the side panel (13).
9. The double-door sealing structure according to claim 1, characterized in that, The front door assembly (11) includes: a front door B-pillar trim panel (111) and a front door (112), the front door (112) being connected to the front door B-pillar trim panel (111), the front door B-pillar trim panel (111) being capable of interfering with one side of the seal (20); and, The rear door assembly (12) includes a rear door B-pillar trim panel (121) and a rear door (122), wherein the rear door B-pillar trim panel (121) can interfere with the other side of the seal (20).
10. A vehicle, characterized in that, include: The double-door sealing structure according to any one of claims 1-9.