Vehicle and its door sealing structure

Abstract

This application relates to the field of vehicle body technology and provides a vehicle and its door sealing structure. The door sealing structure of this application includes a first sealing strip disposed circumferentially on the door frame and a second sealing strip disposed on the door. The first sealing strip has a notch at the door sill, and its bottom abuts against the door sill trim panel. The second sealing strip is disposed corresponding to the notch, and when the door is closed, the second sealing strip abuts against both the first sealing strip and the door sill trim panel. The first sealing strip with a notch at the door sill prevents occupants from stepping on it when getting in and out of the vehicle, effectively avoiding the sealing strip being stepped on. Furthermore, it allows the door sill trim panel to be fully displayed, contributing to a more cohesive look. The second sealing strip effectively ensures the seal between the door and the door frame, thus improving the overall quality of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to a vehicle and its door sealing structure. Background Technology

[0002] Door sealing relies on the compression and deformation of the door sealing strip. This compression and deformation tightly fills the gap between the door and the door frame, effectively isolating the vehicle from the internal and external environments to achieve waterproofing, dustproofing, and noise reduction. Simultaneously, it also cushions the impact of the sheet metal on the interior panels when the door is closed.

[0003] In related technologies, a common form of door sealing strip is to install a single, ring-shaped strip on the door frame, filling the gap between the door and the sealing strip by pressing the door against it. However, the door sealing strip located at the door sill is not only easily stepped on, but also disrupts the overall aesthetics of the sill. Utility Model Content

[0004] In view of this, this application aims to propose a door sealing structure that can effectively ensure the overall appearance of the door sill while guaranteeing airtightness.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A door sealing structure includes a first sealing strip disposed on the door frame along the circumference of the door frame, and a second sealing strip disposed on the door. The first sealing strip has a notch at the threshold of the door frame, and the bottom of the first sealing strip abuts against the threshold trim panel of the door frame.

[0007] The second sealing strip is provided corresponding to the notch, and when the door is closed, the second sealing strip abuts against the first sealing strip and the door sill trim in pairs.

[0008] Furthermore, the door sill trim includes a vertical portion extending along the vertical direction of the vehicle, and a top portion located at the top of the vertical portion; the front and rear ends of the vertical portion are respectively provided with protruding sections that protrude relative to the top portion, and the front and rear ends of the first sealing strip abut against the protruding sections at the corresponding ends.

[0009] Furthermore, the interference L1 between the first sealing strip and the protruding section in the vertical direction of the vehicle is not less than 5mm.

[0010] Furthermore, the interference L2 between the first sealing strip and the protruding section in the left-right direction of the vehicle is between 3mm and 4mm.

[0011] Furthermore, the first sealing strip is provided with a sealing lip extending towards the inside of the vehicle; the front and rear ends of the top portion respectively abut against the sealing lip at the corresponding ends.

[0012] Furthermore, the top of the vertical portion is provided with an arc-shaped abutment surface, which is arranged along the length direction of the vertical portion; when the door is closed, the second sealing strip abuts against the abutment surface and the first sealing strip.

[0013] Furthermore, the door sill trim also includes a bottom portion located at the bottom of the vertical portion; the bottom portion extends outward to the side of the vehicle and abuts against the door frame.

[0014] Furthermore, a groove is formed on the first sealing strip; the first sealing strip is engaged with the door frame through the groove.

[0015] Furthermore, one side of the second sealing strip is provided with an installation groove, and an adhesive strip is provided in the installation groove; the second sealing strip is adhered to the bottom of the car door by the adhesive strip.

[0016] Compared with related technologies, this application has the following advantages:

[0017] (1) The door sealing structure described in this application, by providing a first sealing strip with a notch at the door sill, prevents occupants from stepping on the first sealing strip when getting in and out of the vehicle, effectively avoiding the situation where the sealing strip at the door sill is stepped on. Furthermore, the notch in the first sealing strip at the door sill allows the door sill trim to be fully displayed, effectively preventing the door sill trim from being obscured and helping to maintain the overall appearance of the door sill. Based on this, by providing a second sealing strip, the sealing between the door and the door frame can be effectively guaranteed, thus contributing to improving the overall quality of the vehicle.

[0018] (2) The sill plate includes a top portion, which not only gives the sill plate better structural strength, but also improves the decorative effect of the sill. By providing protruding sections at the front and rear ends of the vertical portion that protrude relative to the top portion, it is also convenient to achieve the contact between the sill plate and the first sealing strip, so as to improve the sealing effect of the first sealing strip.

[0019] (3) By ensuring that the interference L1 between the first sealing strip and the protruding section in the vertical direction of the vehicle is not less than 5mm, the first sealing strip can be compressed by the protruding section by at least 5mm after assembly, thereby allowing the first sealing strip to fully fill the gap between it and the protruding section, thus effectively ensuring the sealing performance between the first sealing strip and the protruding section, and thus helping to ensure the overall sealing effect of the door sealing structure.

[0020] (4) The interference between the first sealing strip and the protruding section in the left-right direction is set so that the protruding section exerts a compressive force on the first sealing strip in the left-right direction of the whole vehicle, which helps to improve the sealing performance between the first sealing strip and the protruding section. The interference L2 between the first sealing strip and the protruding section in the left-right direction of the whole vehicle is set between 3mm and 4mm, which can ensure the compression force required for sealing and adapt to the narrow lateral assembly space.

[0021] (5) Based on the top part of the door sill panel, a sealing lip is provided on the first sealing strip and the sealing lip abuts against both ends of the top part. This helps to improve the sealing between the first sealing strip and the door sill panel by the squeezing force generated by the first sealing strip abutting against the top part, so as to further enhance the waterproof and dustproof capabilities of the area.

[0022] (6) By setting an arc-shaped contact surface, the contact area between the second sealing strip and the vertical part is increased when the door is closed, thereby improving the sealing performance between the door and the door frame. At the same time, it can effectively avoid the situation where the stress concentration of the second sealing strip due to the right-angle edge of the contact edge with the second sealing strip leads to accelerated aging.

[0023] (7) By setting the bottom part, not only can the overall structural strength of the threshold panel be improved, but also the bottom part can help to improve the exquisite feel of the door frame by cooperating with the vertical part and the top part.

[0024] (8) The first sealing strip is connected to the door frame by setting a groove on the first sealing strip. No complicated tools are required during installation, which can effectively improve the installation efficiency. At the same time, the first sealing strip can better conform to the shape of the door frame, which helps to keep the compression of the first sealing strip at different positions when the door is closed, thereby helping to ensure waterproofing, dustproofing and noise reduction. In addition, it also facilitates the disassembly and replacement of the first sealing strip.

[0025] (9) The mounting groove facilitates the adhesion of the adhesive strip to the sealing strip along the extension direction of the second sealing strip, and effectively prevents the adhesive strip from shifting along the vertical direction of the vehicle, thereby increasing the connection stability between the adhesive strip and the second sealing strip. Furthermore, using an adhesive strip to bond the second sealing strip to the bottom of the door contributes to the lightweight design of the door, eliminating the need for drilling holes in the door and reducing modifications to the door structure; moreover, it effectively avoids deformation of the door sheet metal caused by mechanical snap-fit ​​disassembly during later maintenance.

[0026] This application also proposes a vehicle having a door sealing structure as described above.

[0027] The vehicle described in this application, by setting the door sealing structure as described above, can ensure both sealing performance and the overall integrity of the door sill, thus helping to improve the quality of the vehicle. Attached Figure Description

[0028] 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:

[0029] Figure 1 This is a schematic diagram of the first sealing strip being assembled on the door frame according to an embodiment of this application;

[0030] Figure 2 This is a schematic diagram showing that the first sealing strip and the threshold trim panel described in this application are both assembled on the door frame;

[0031] Figure 3 This is a schematic diagram of the second sealing strip being assembled on a car door according to an embodiment of this application;

[0032] Figure 4 This is a schematic diagram showing the vehicle door in a closed state according to an embodiment of this application;

[0033] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0034] Figure 6 This is a schematic diagram of the door sill trim and the first sealing strip as described in the embodiments of this application;

[0035] Figure 7 for Figure 6 A magnified view of part B in the middle section;

[0036] Figure 8 This is a partial sectional view of the abutment surface described in the embodiments of this application;

[0037] Figure 9 This is a cross-sectional view of a portion of the components of the embodiment of this application and the abutting surface of the second sealing strip described herein;

[0038] Figure 10 for Figure 6 Another perspective illustration;

[0039] Figure 11 for Figure 10 A magnified view of part D in the middle;

[0040] Figure 12 for Figure 1 Sectional view at CC;

[0041] Figure 13 for Figure 12 A magnified view of part E in the middle.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Door frame; 101. Threshold;

[0044] 2. First sealing strip; 201. Notch; 202. Sealing lip; 203. Slot; 204. Snap-fit ​​lip;

[0045] 3. Car door;

[0046] 4. Second sealing strip; 401. Mounting groove;

[0047] 5. Threshold trim; 501. Vertical section; 501a. Abutment surface; 502. Top section; 503. Protruding section; 504. Bottom section; 505. Anti-slip groove; 506. Raised strip; 507. Raised edge;

[0048] 6. Adhesive strips. Detailed Implementation

[0049] 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.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] An embodiment of the first aspect of this application provides a door sealing structure that, while ensuring sealing performance, also effectively ensures the overall appearance of the door sill 101.

[0056] In related technologies, the common form of the door sealing strip of the car door 3 is to install the entire ring-shaped sealing strip on the door frame 1, and fill the gap between the two by pressing the car door 3 against the door sealing strip. However, the door sealing strip located at the sill 101 of the door frame 1 is not only easy to be stepped on, but also disrupts the overall appearance of the sill 101.

[0057] In view of this, in order to overcome the shortcomings of related technologies, the door sealing structure of this embodiment combines... Figures 1 to 5 As shown, in terms of overall design, the door sealing structure includes a first sealing strip 2 disposed circumferentially on the door frame 1 and a second sealing strip 4 disposed on the door 3. The first sealing strip 2 has a notch 201 at the sill 101 of the door frame 1, and the bottom of the first sealing strip 2 abuts against the sill trim 5 of the door frame 1. The second sealing strip 4 is disposed corresponding to the notch 201. When the door 3 is closed, the second sealing strip 4 abuts against the first sealing strip 2 and the sill trim 5 in pairs.

[0058] Therefore, by providing a first sealing strip 2 with a notch 201 at the sill 101, occupants will not step on the first sealing strip 2 when getting in and out of the vehicle, effectively preventing the sealing strip at the sill 101 from being stepped on. Furthermore, the notch 201 in the first sealing strip 2 at the sill 101 allows the sill trim 5 on the sill 101 to be fully visible, effectively preventing the sill trim 5 from being obscured and helping to maintain the overall integrity of the sill 101. Based on this, by providing a second sealing strip 4, the sealing between the door 3 and the door frame 1 can be effectively ensured, thus contributing to improving the overall quality of the vehicle.

[0059] Based on the above overall introduction, specifically, combined with Figure 4 and Figure 5 As shown, when the door 3 is closed, the second sealing strip 4 abuts against the first sealing strip 2 and the door sill trim 5 in pairs. That is, after the first sealing strip 2 and the door sill trim 5 are installed on the door frame 1, the first sealing strip 2 and the door sill trim 5 are in abutting state to achieve a seal between them. When the door 3 is closed, both ends of the second sealing strip 4 abut against the first sealing strip 2, and the remaining part of the second sealing strip 4 abuts against the door sill trim 5. With the above design, the first sealing strip 2 abuts against the second sealing strip 4, the first sealing strip 2 abuts against the door sill trim 5, and the second sealing strip 4 abuts against the door sill trim 5, thereby achieving mutual abutment between the second sealing strip 4 and the first sealing strip 2 and the door sill trim 5 in pairs.

[0060] It is understandable that both the first sealing strip 2 and the second sealing strip 4 can be made of rubber. When the car door 3 is closed, the elastic deformation property of rubber can be used to fill the gap between the car door 3 and the door frame 1. Furthermore, the use of rubber can make the first sealing strip 2 and the second sealing strip 4 adaptable to different temperature changes.

[0061] In some of the exemplary implementations, combined with Figure 2 , Figure 6 and Figure 7 As shown, the door sill trim 5 includes a vertical portion 501 extending along the vertical direction of the whole vehicle, and a top portion 502 located at the top of the vertical portion 501; the front and rear ends of the vertical portion 501 are respectively provided with protruding sections 503 protruding relative to the top portion 502, and the front and rear ends of the first sealing strip 2 abut against the protruding sections 503 at the corresponding ends.

[0062] At this point, by including a top portion 502 in the sill panel 5, not only can the sill panel 5 have better structural strength, but the decorative effect on the sill 101 can also be improved. Furthermore, by providing protruding sections 503 at both ends of the vertical portion 501 that protrude relative to the top portion 502, it is also convenient to achieve the contact between the sill panel 5 and the first sealing strip 2, thereby improving the sealing effect of the first sealing strip 2.

[0063] In practice, the vertical portion 501 and the top portion 502 can be integrally formed, and the protruding sections 503 at both ends of the vertical portion 501 conform to the door frame 1 structure. To further enhance the refinement and anti-slip properties of the door sill trim 5, anti-slip grooves 505 are provided on the top portion 502 along the front-rear direction of the vehicle. The anti-slip grooves 505 can effectively reduce the risk of slipping and can effectively reflect the design of the door frame 1 trim, making the door frame 1 trim more refined.

[0064] In some exemplary embodiments, based on setting the protruding segment 503, combined with Figure 10and Figure 11 As shown, the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is not less than 5mm. By ensuring that the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is not less than 5mm, the first sealing strip 2 can be compressed by the protruding section 503 by at least 5mm after assembly. This allows the first sealing strip 2 to fully fill the gap between it and the protruding section 503, effectively ensuring the sealing performance between the first sealing strip 2 and the protruding section 503, and thus contributing to the overall sealing effect of the door sealing structure. At the same time, setting the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle to be not less than 5mm provides sufficient interference friction between the first sealing strip 2 and the protruding section 503, preventing the sealing strip from separating from the protruding section 503 during vehicle vibration. Furthermore, it effectively avoids the situation where the two ends of the first sealing strip 2 curl up due to insufficient interference.

[0065] It is understood that the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is not less than 5mm. For example, the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle can be 5mm, 6mm, 6.5mm, 7mm, etc. Preferably, in this embodiment, the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is set to 5mm. By setting an appropriate interference amount, the sealing performance and connection strength between the first sealing strip 2 and the protruding section 503 can be effectively ensured, while effectively avoiding fatigue damage to the first sealing strip 2 caused by excessive interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle, thereby reducing the risk of permanent deformation of the first sealing strip 2.

[0066] In some exemplary embodiments, based on setting the protruding segment 503, combined with Figure 10 and Figure 11 As shown, the interference L2 between the first sealing strip 2 and the protruding section 503 in the left-right direction of the vehicle is between 3mm and 4mm. For example, the interference L2 between the first sealing strip 2 and the protruding section 503 in the left-right direction of the vehicle can be 3mm, 3.2mm, 3.5mm, 4mm, etc. Preferably, in this embodiment, the interference L2 between the first sealing strip 2 and the protruding section 503 in the left-right direction of the vehicle is 3.5mm.

[0067] By setting the interference between the first sealing strip 2 and the protruding section 503 in the left-right direction, the protruding section 503 generates a compressive force on the first sealing strip 2 in the left-right direction of the entire vehicle, which helps to improve the sealing performance between the first sealing strip 2 and the protruding section 503. Setting the interference amount L2 between the first sealing strip 2 and the protruding section 503 in the left-right direction of the entire vehicle to between 3mm and 4mm ensures the required compressive force for sealing while also adapting to narrow lateral assembly spaces.

[0068] In specific implementation, to facilitate the compression of the first sealing strip 2 and the protruding section 503 along the vertical and horizontal directions of the vehicle and to press against the protruding section 503, in this embodiment, the first sealing strip 2 is provided with a bubble tube portion, and the bubble tube portion is along the extension direction of the first sealing strip 2. This arrangement facilitates the first sealing strip 2 being compressed and pressed against the protruding section 503.

[0069] In some of the exemplary implementations, combined with Figure 5 , Figure 12 and Figure 13 As shown, the first sealing strip 2 is provided with a sealing lip 202 extending towards the inside of the vehicle, and the front and rear ends of the top portion 502 respectively abut against the sealing lip 202 at the corresponding ends.

[0070] At this point, based on the top portion 502 of the sill trim 5, a sealing lip 202 is provided on the first sealing strip 2, and the sealing lip 202 abuts against both ends of the top portion 502. This helps to improve the sealing performance between the first sealing strip 2 and the sill trim 5 through the compressive force generated by the abutment between the first sealing strip 2 and the top portion 502, thereby further enhancing the waterproof and dustproof capabilities of this area. In specific implementation, in this embodiment, the sealing lip 202 and the first sealing strip 2 are integrally formed.

[0071] In some of the exemplary implementations, combined with Figure 8 and Figure 9 As shown, the top of the vertical portion 501 is provided with an arc-shaped abutment surface 501a, which is arranged along the length direction of the vertical portion 501. Furthermore, when the door 3 is closed, the second sealing strip 4 abuts against the abutment surface 501a and the first sealing strip 2.

[0072] By setting an arc-shaped contact surface 501a, when the door 3 is closed, the contact area between the second sealing strip 4 and the vertical portion 501 is increased, thereby improving the sealing performance between the door 3 and the door frame 1. At the same time, it effectively avoids the situation where the second sealing strip 4 experiences stress concentration due to its right-angled contact edge, which would otherwise lead to accelerated aging.

[0073] In practical implementation, to facilitate the deformation of the second sealing strip 4 under pressure after contacting the abutment surface 501a, the second sealing strip 4 is also provided with a bubble tube portion. This design, under the elastic deformation of the second sealing strip 4, ensures that the second sealing strip 4 presses tightly against the abutment surface 501a to guarantee the seal between the door 3 and the door frame 1. Simultaneously, the bubble tube portion of the second sealing strip 4 facilitates deformation under compression upon contact with the abutment surface 501a, effectively preventing situations where the door 3 is difficult to close due to the second sealing strip 4 being too stiff or lacking sufficient elastic deformation.

[0074] In some of the exemplary implementations, combined with Figure 2 , Figure 8 and Figure 9 As shown, the door sill trim 5 also includes a bottom portion 504 located at the bottom of the vertical portion 501, and the bottom portion 504 extends outward to the side of the vehicle and abuts against the door frame 1. By providing the bottom portion 504, not only can the overall structural strength of the door sill trim 5 be improved, but also the bottom portion 504, in conjunction with the vertical portion 501 and the top portion 502, can help to enhance the refinement of the door frame 1.

[0075] In practice, for example, the bottom portion 504, the vertical portion 501, and the top portion 502 can be integrally molded. In addition, to further enhance the sophistication of the door sill trim 5, the bottom portion 504 is also provided with anti-slip grooves 505 along the front-rear direction of the vehicle, and the style and specifications of the anti-slip grooves 505 on the bottom portion 504 are the same as those on the top portion 502, so as to facilitate processing and manufacturing.

[0076] In this embodiment, the first sealing strip 2 is installed on the door frame 1 in a manner that, in detail, combines... Figure 12 and Figure 13 As shown, a groove 203 is formed on the first sealing strip 2; the first sealing strip 2 is snapped onto the door frame 1 through the groove 203.

[0077] The first sealing strip 2 is connected to the door frame 1 by setting a groove 203 on it. This eliminates the need for complex tools during installation, effectively improving installation efficiency. Simultaneously, the first sealing strip 2 conforms better to the door frame 1, helping to maintain consistent compression at different locations when the door 3 is closed. This contributes to ensuring waterproofing, dustproofing, and noise reduction, and also facilitates the removal and replacement of the first sealing strip 2.

[0078] Continue to combine Figure 1 , Figure 2 and Figure 13As shown, along the extension direction of the first sealing strip 2, a snap-fit ​​lip 204 integrally formed with the first sealing strip 2 is provided in the slot 203. When the edge of the door frame 1 is inserted into the slot 203, the snap-fit ​​lip 204 is deformed by pressure. At the same time, the reaction force generated by the deformation of the snap-fit ​​lip 204 on the door frame 1 makes the snap-fit ​​lip 204 securely snapped onto the door frame 1.

[0079] In some exemplary embodiments, as shown in Figure 9, a mounting groove 401 is provided on one side of the second sealing strip 4, and an adhesive strip 6 is provided in the mounting groove 401; the second sealing strip 4 is bonded to the bottom of the door 3 by the adhesive strip 6.

[0080] The mounting groove 401 facilitates the adhesion of the adhesive strip 6 to the sealing strip along the extension direction of the second sealing strip 4, and effectively prevents the adhesive strip 6 from shifting along the vertical direction of the vehicle, thereby increasing the connection stability between the adhesive strip 6 and the second sealing strip 4. Furthermore, using the adhesive strip 6 to bond the second sealing strip 4 to the bottom of the door 3 contributes to the weight reduction of the door 3, eliminating the need for drilling holes in the door 3 and reducing structural modifications. Moreover, during later maintenance, it effectively avoids deformation of the door 3 sheet metal caused by mechanical disassembly and reassembly.

[0081] It is worth noting that the mounting groove 401 can be a sealing groove directly formed on the second sealing strip 4, or it can be a mounting groove 401 formed by two parallel convex ridges extending along the length of the second sealing strip 4. In this embodiment, preferably, the mounting groove 401 is formed by two parallel convex ridges extending along the length of the second sealing strip 4. This arrangement helps to keep the thickness of the second sealing strip 4 consistent, and thus ensures that the deformation of each part is consistent when the second sealing strip 4 is compressed, thereby reducing stress concentration. The mounting groove 401 is designed to accommodate the adhesive strip 6. It is understood that the thickness of the adhesive strip 6 is not less than the depth of the mounting groove 401, so that the adhesive strip 6 can be securely adhered to the door 3.

[0082] Understandably, pre-formed adhesive strips 6 can be used, meaning they have already undergone vulcanization and adhesive coating before leaving the factory. Therefore, when installing adhesive strips 6, only the release paper needs to be removed for direct use. This helps shorten assembly time and improve assembly efficiency. Furthermore, when adhesive strips 6 or the second sealing strip 4 need to be replaced due to aging, the original adhesive strip 6 needs to be removed and re-attached. Compared to non-pre-formed, field-applied adhesive strips 6, pre-formed adhesive strips 6 are more convenient for replacement.

[0083] In some exemplary structures, combined Figure 2 and Figure 11As shown, in this embodiment, as an optional implementation for connecting the door sill trim 5 and the door sill 101, specifically, a raised strip 506 is fixedly connected to the lower surface of the top portion 502. The raised strip 506 is rectangular columnar, and a through hole corresponding to the raised strip 506 is opened on the door sill 101. The raised strip 506 is engaged in the through hole, thereby connecting the door sill trim 5 and the door sill 101. This arrangement can effectively prevent the door sill trim 5 from swaying along the front-rear direction and the left-right direction of the vehicle. Preferably, the raised strips 506 are distributed along the length direction of the top portion 502, and multiple raised strips 506 are provided. This can further improve the reliability of the door frame trim 1 installed on the door frame 1.

[0084] It is worth noting that, in order to further enhance the refinement of the door sill trim 5 and improve its stability when installed on the door sill 101, combined with... Figure 8 and Figure 11 As shown, a raised edge 507 is formed downwards along the vertical direction of the vehicle on the side of the top portion 502 opposite to the vertical portion 501. The raised edge 507 hooks onto the side wall of the sill 101 near the interior of the vehicle, forming an n-shaped structure in conjunction with the vertical portion 501. This arrangement of the top portion 502 onto the sill 101 improves the stability of the sill trim 5 connected to the sill 101. Furthermore, extending the sill trim 5 from the outside of the sill 101 into the interior of the vehicle enhances the refined appearance of the sill trim 5.

[0085] Continue to combine Figure 9 As shown, it can be understood that the overlapping interference between the sill trim 5 and the second sealing strip 4 shown in the figure, in actual product application, that is, when the door 3 of the actual vehicle is closed, the second sealing strip 4 is deformed by the pressure of the sill trim 5, thus pressing against the sill trim 5, and will not actually embed itself into the sill trim 5, and will not overlap or interfere with the sill trim 5. The interference shown in the figure is intended to illustrate that when the door 3 is closed, the second sealing strip 4 will be compressed and deformed, and thus achieve a tight fit with the sill trim 5 under the action of its elastic deformation. Similarly, the overlapping interference between the second sealing strip 4 and the first sealing strip 2 in the figure is also intended to show that when the door 3 is closed, both the first sealing strip 2 and the second sealing strip 4 undergo elastic deformation and press against each other to improve the sealing between the door 3 and the door frame 1. When the door 3 of the actual vehicle is closed, the first sealing strip 2 and the second sealing strip 4 will not overlap and interfere with each other.

[0086] like Figure 10 and Figure 11As shown, it is also understandable that the interference between the first sealing strip 2 and the protruding section 503 is intended to demonstrate that the first sealing strip 2 can be compressed and installed on the door frame 1 in both the longitudinal and lateral directions of the vehicle. During actual vehicle assembly, there will be no overlapping interference between the first sealing strip 2 and the protruding section 503.

[0087] It is worth noting that, regarding this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still... Figures 1 to 5 As shown, the door sealing structure includes a first sealing strip 2 disposed on the door frame 1 along the circumference of the door frame 1, and a second sealing strip 4 disposed on the door 3. The first sealing strip 2 has a notch 201 at the sill 101 of the door frame 1, and the bottom of the first sealing strip 2 abuts against the sill trim 5 of the door frame 1.

[0088] The second sealing strip 4 is set corresponding to the notch 201. When the door 3 is closed, the second sealing strip 4 abuts against the first sealing strip 2 and the door sill trim 5.

[0089] In the preferred embodiment described above, the door sill trim 5 includes a vertical portion 501 extending along the vertical direction of the vehicle, and a top portion 502 disposed at the top of the vertical portion 501; the front and rear ends of the vertical portion 501 are respectively provided with protruding sections 503 protruding relative to the top portion 502, and the front and rear ends of the first sealing strip 2 respectively abut against the corresponding protruding sections 503. The door sill trim 5 also includes a bottom portion 504 disposed at the bottom of the vertical portion 501; the bottom portion 504 extends outward to the side of the vehicle and abuts against the door frame 1.

[0090] The top portion 502, vertical portion 501, protruding section 503, and bottom portion 504 are integrally formed, forming a Z-shaped structure, and are fixed to the door frame 1 and door sill 101. To further enhance the aesthetics and anti-slip properties of the door sill trim 5, anti-slip grooves 505 are formed on both the top portion 502 and the bottom portion 504. These grooves effectively increase friction with the soles of shoes when passengers get on and off the vehicle, thus improving anti-slip performance.

[0091] Based on this, the top of the vertical portion 501 is provided with an arc-shaped abutment surface 501a, which is arranged along the length of the vertical portion 501. When the door 3 is closed, the second sealing strip 4 abuts against the abutment surface 501a and the first sealing strip 2. The abutment surface 501a has an arc shape, that is, a rounded corner is formed at the connection between the vertical portion 501 and the top portion 502. The arc-shaped abutment surface 501a helps to increase the contact area between the second sealing strip 4 and the vertical portion 501, thereby increasing the sealing performance, and also effectively avoids the occurrence of sharp edges hitting the occupants.

[0092] As a connection method between the first sealing strip 2 and the door frame 1, a groove 203 is formed on the first sealing strip 2; the first sealing strip 2 is snapped onto the door frame 1 through the groove 203. Preferably, along the extension direction of the first sealing strip 2, a snap-fit ​​lip 204 integrally formed with the first sealing strip 2 is provided in the groove 203. When the edge of the door frame 1 is inserted into the groove 203, the snap-fit ​​lip 204 is deformed by pressure, and the reaction force generated by the deformation of the snap-fit ​​lip 204 on the door frame 1 makes the snap-fit ​​lip 204 securely snapped onto the door frame 1.

[0093] Furthermore, based on this, the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is not less than 5mm. Preferably, in this embodiment, the interference L1 between the first sealing strip 2 and the protruding section 503 in the vertical direction of the vehicle is set to 5mm. The interference L2 between the first sealing strip 2 and the protruding section 503 in the horizontal direction of the vehicle is between 3mm and 4mm. Preferably, in this embodiment, the interference L2 between the first sealing strip 2 and the protruding section 503 in the horizontal direction of the vehicle is 3.5mm. At the same time, the first sealing strip 2 is provided with a sealing lip 202 extending towards the inside of the vehicle; the front and rear ends of the top portion 502 respectively abut against the sealing lip 202 at the corresponding ends.

[0094] The above settings help to further increase the reliability of the first sealing strip 2 after it is connected to the door frame 1, as well as the sealing between the first sealing strip 2 and the door frame 1.

[0095] As a way of connecting the second sealing strip 4 to the car door 3, one side of the second sealing strip 4 is provided with an installation groove 401 and an adhesive strip 6 provided in the installation groove 401; the second sealing strip 4 is bonded to the bottom of the car door 3 by the adhesive strip 6.

[0096] In the above preferred embodiment, to further improve the firmness of the first sealing strip 2 connected to the door frame 1, specifically, in this embodiment, the connection between the door frame 1 and the sill 101 is designed at a near-right angle. This design facilitates the installation of both ends of the first sealing strip 2 on the door frame 1 along the vertical direction of the vehicle, thus avoiding the occurrence of warping due to bending at the end of the first sealing strip 2. Furthermore, the near-right angle design at the connection between the door frame 1 and the sill 101 helps to ensure that the end of the first sealing strip 2 is perpendicular to the protruding section 503 and abuts against the sill trim 5, thereby ensuring the reliable connection between the first sealing strip 2 and the sill trim 5.

[0097] The door sealing structure of this embodiment adopts the design described above. By providing a first sealing strip 2 with a notch 201 at the sill 101, occupants will not step on the first sealing strip 2 when getting in and out of the vehicle, effectively preventing the sealing strip at the sill 101 from being stepped on. Furthermore, the notch 201 in the first sealing strip 2 at the sill 101 allows the sill trim 5 on the sill 101 to be fully visible, effectively preventing the sill trim 5 from being obscured and helping to maintain the overall integrity of the sill 101. Based on this, the second sealing strip 4 effectively ensures the seal between the door 3 and the door frame 1, thus contributing to improving the overall quality of the vehicle.

[0098] An embodiment of the second aspect of this application provides a vehicle having a door sealing structure as described above.

[0099] In this embodiment, the vehicle door sealing structure described above ensures both sealing performance and the overall integrity of the door sill 101, thus improving vehicle quality.

[0100] 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 door sealing structure, characterized in that: Includes a first sealing strip (2) disposed on the door frame (1) along the circumference of the door frame (1) and a second sealing strip (4) disposed on the door (3). The first sealing strip (2) has a notch (201) at the threshold (101) of the door frame (1), and the bottom of the first sealing strip (2) abuts against the threshold trim (5) of the door frame (1). The second sealing strip (4) is provided corresponding to the notch (201). When the door (3) is closed, the second sealing strip (4) abuts against the first sealing strip (2) and the door sill trim (5) in pairs.

2. The door sealing structure according to claim 1, characterized in that: The door sill trim (5) includes a vertical portion (501) extending along the vertical direction of the vehicle, and a top portion (502) located at the top of the vertical portion (501). The front and rear ends of the vertical portion (501) are respectively provided with protruding sections (503) that protrude relative to the top portion (502), and the front and rear ends of the first sealing strip (2) abut against the protruding sections (503) at the corresponding ends.

3. The door sealing structure according to claim 2, characterized in that: The interference L1 between the first sealing strip (2) and the protruding section (503) in the vertical direction of the vehicle is not less than 5mm.

4. The door sealing structure according to claim 2, characterized in that: The interference L2 between the first sealing strip (2) and the protruding section (503) in the left-right direction of the vehicle is between 3mm and 4mm.

5. The door sealing structure according to claim 2, characterized in that: The first sealing strip (2) is provided with a sealing lip (202) extending toward the inside of the vehicle; The front and rear ends of the top portion (502) respectively abut against the sealing lip (202) at the corresponding ends.

6. The door sealing structure according to claim 2, characterized in that: The top of the vertical portion (501) is provided with an arc-shaped abutment surface (501a), which is arranged along the length direction of the vertical portion (501). When the door (3) is closed, the second sealing strip (4) abuts against the contact surface (501a) and the first sealing strip (2).

7. The door sealing structure according to claim 2, characterized in that: The threshold panel (5) also includes a bottom portion (504) located at the bottom of the vertical portion (501); The bottom portion (504) extends outward and abuts against the door frame (1).

8. The door sealing structure according to claim 1, characterized in that: A groove (203) is formed on the first sealing strip (2); The first sealing strip (2) is snapped onto the door frame (1) through the slot (203).

9. The door sealing structure according to any one of claims 1 to 8, characterized in that: The second sealing strip (4) has a mounting groove (401) on one side, and an adhesive strip (6) disposed in the mounting groove (401); The second sealing strip (4) is bonded to the bottom of the door (3) by the adhesive strip (6).

10. A vehicle, characterized in that: The vehicle is equipped with a door sealing structure as described in any one of claims 1 to 9.

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