Door sealing structure and vehicle

Abstract

The application relates to a vehicle door sealing structure and a vehicle. The vehicle door sealing structure comprises a sealing strip, the sealing strip comprises a bubble tube extending along the circumference of a door hole, the bubble tube has an anti-deformation section, the anti-deformation section is located at the waist line position of a vehicle body and is in contact with an inner plate when the door is closed; and an elastic filling strip is arranged in the bubble tube and located at the anti-deformation section, and the outer wall of the elastic filling strip is in contact with the inner wall of the bubble tube. The bubble tube of the sealing strip forms the anti-deformation section at the waist line position of the vehicle body, the anti-deformation section corresponds to a region with large curvature change of the metal plate outside the door hole, the elastic filling strip is arranged in the bubble tube and located at the anti-deformation section, and the elastic filling strip plays a role in elastically supporting the anti-deformation section, effectively avoids the distortion of the anti-deformation section, guarantees the sealing effect, and is beneficial to reducing the influence of wind noise and tire noise; no elastic filling strip is arranged at the positions outside the anti-deformation section of the bubble tube, which is beneficial to guaranteeing the flexibility of the positions outside the anti-deformation section of the bubble tube, thereby improving the overall sealing effect and reducing the influence of wind noise and tire noise.

Description

Technical Field

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

[0002] With the popularization of new energy vehicles, engine noise is gradually decreasing, while wind noise and tire noise are becoming more prominent. Currently, most door sealing strips use a foam tube structure, which achieves sealing by utilizing the compressible deformation capability of the foam tube, thereby reducing wind noise and tire noise.

[0003] The body waistline is located below the window. At this position, the curvature of the sheet metal on the outside of the door opening changes significantly, and the sealing strip cannot fully fit the sheet metal. The part of the bubble tube located at the body waistline is prone to twisting, making it difficult to ensure a good sealing effect when in contact with the inner panel of the door, which in turn weakens the elimination effect of wind noise and tire noise. Utility Model Content

[0004] Therefore, it is necessary to provide a door sealing structure and vehicle to address the problem that the part of the bubble tube located at the waistline of the vehicle body in the existing technology is prone to twisting, making it difficult to ensure a good sealing effect when in contact with the inner panel of the door.

[0005] This utility model provides a door sealing structure for automobiles, the automobile including a body and a door, the body having a door opening, the door being openable and closable on one side of the door opening, the door having an inner panel, the door sealing structure including: a sealing strip, the sealing strip including a bubble tube extending circumferentially along the door opening, the bubble tube having an anti-deformation section located at the waistline of the body and contacting the inner panel when the door is closed; an elastic filler strip, the elastic filler strip being disposed inside the bubble tube and located at the anti-deformation section, the outer wall of the elastic filler strip contacting and engaging with the inner wall of the bubble tube.

[0006] According to one embodiment of the present invention, the anti-deformation segment includes a first component segment and a second component segment arranged at intervals, the first component segment being located on the front side of the door opening and the second component segment being located on the rear side of the door opening, and the elastic filling strip includes a first filling strip and a second filling strip arranged at intervals, the first filling strip being located on the first component segment and the second filling strip being located on the second component segment.

[0007] According to one embodiment of the present invention, a first positioning ring is fixedly provided on the inner wall of the bubble tube, and one end of the first filling strip abuts against the first positioning ring. A second positioning ring is fixedly provided on the inner wall of the bubble tube, and one end of the second filling strip abuts against the second positioning ring.

[0008] According to one embodiment of the present invention, at least two annular protrusions are fixedly provided on the inner wall of the bubble tube, wherein a portion of the annular protrusions are located in the first constituent section and the other portion of the annular protrusions are located in the second constituent section, and annular grooves that engage with the annular protrusions are respectively provided on the periphery of the first filling strip and the periphery of the second filling strip.

[0009] According to one embodiment of the present invention, the elastic filler strip is provided with an inner hole, and the inner hole extends along the extension direction of the elastic filler strip.

[0010] According to one embodiment of the present invention, the sealing strip further includes an installation part, which is fixedly connected to the bubble tube and to the position of the vehicle body located around the door opening.

[0011] According to one embodiment of the present invention, the mounting portion extends circumferentially along the door opening.

[0012] According to one embodiment of the present invention, the mounting part is provided with a mounting groove, and the inner wall of the mounting groove is provided with a snap-fit ​​protrusion.

[0013] According to one embodiment of the present invention, the bubble tube is provided with a drain hole communicating with the inner cavity of the bubble tube, and the drain hole is configured to allow the elastic filling strip to pass through.

[0014] This utility model also provides a vehicle, including: a body having a door opening; a door that is openable and closable on one side of the door opening, the door having an inner panel; and the door sealing structure of the above embodiment.

[0015] In the aforementioned door sealing structure and vehicle, the sealing strip's bubble tube forms an anti-deformation section at the waistline of the vehicle body. This anti-deformation section corresponds to the area with significant changes in the curvature of the sheet metal on the outer side of the door opening. An elastic filler strip is placed inside the bubble tube and located within the anti-deformation section, providing elastic support to the anti-deformation section and effectively preventing it from twisting, thus ensuring a good seal and reducing wind and tire noise. Furthermore, no elastic filler strip is placed outside the anti-deformation section of the bubble tube, which helps ensure the flexibility of the area outside the anti-deformation section, thereby improving the overall sealing effect and reducing wind and tire noise. Attached Figure Description

[0016] Figure 1 This is an application scenario diagram of a door sealing structure according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the overall structure of a door sealing structure according to an embodiment of this application.

[0018] Figure 3This is a schematic diagram of the installation structure of the elastic filler strip in the door sealing structure according to an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the installation structure of the elastic filler strip in the door sealing structure according to another embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the installation structure of the elastic filler strip in the door sealing structure according to another embodiment of this application.

[0021] Figure label:

[0022] 100. Vehicle body; 110. Doorway;

[0023] 200. Inner panel;

[0024] 300. Sealing strip; 310. Bubble tube; 311. First component section; 312. Second component section; 313. First positioning ring; 314. Annular protrusion; 320. Mounting part; 321. Mounting groove; 322. Snap-fit ​​protrusion;

[0025] 400, Elastic filler strip; 410, First filler strip; 411, Annular groove; 420, Inner hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship 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 of this application.

[0028] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0032] Combination Figures 1 to 3The door sealing structure provided in this application embodiment is applied to an automobile, which includes a body 100 and a door. The body 100 has a door opening 110, and the door is closable and disposed on one side of the door opening 110. The door is provided with an inner panel 200. The door sealing structure includes: a sealing strip 300, which includes a bubble tube 310 extending circumferentially along the door opening 110. The bubble tube 310 has an anti-deformation section located at the waistline of the body 100 and in contact with the inner panel 200 when the door is closed; and an elastic filler strip 400 disposed inside the bubble tube 310 and located in the anti-deformation section. The outer wall of the elastic filler strip 400 contacts and cooperates with the inner wall of the bubble tube 310.

[0033] In this embodiment, the extension trajectory of the bubble tube 310 is adapted to the edge contour of the door opening 110, forming a continuous sealing path around the door opening 110. The bubble tube 310 is provided with an anti-deformation section, which is correspondingly located at the waistline position of the vehicle body 100. The waistline position of the vehicle body 100 is located below the window, and the outer sheet metal of the door opening 110 at this position has a significant curvature change. When the door is closed, the anti-deformation section of the bubble tube 310 can directly contact the inner panel 200 of the door, forming a sealing fit and blocking the airflow channel between the inside and outside of the vehicle body 100.

[0034] The elastic filler strip 400 is disposed within the internal space of the bubble tube 310, and the placement range of the elastic filler strip 400 corresponds to the deformation-resistant section of the bubble tube 310. That is, the elastic filler strip 400 is only located within the deformation-resistant section of the bubble tube 310 and does not extend to other areas of the bubble tube 310. The outer wall of the elastic filler strip 400 contacts and engages with the inner wall of the bubble tube 310. The elastic filler strip 400 can fill the internal space of the deformation-resistant section of the bubble tube 310 through its own structural shape, providing support for the deformation-resistant section of the bubble tube 310 and ensuring that the deformation-resistant section of the bubble tube 310 maintains a stable structural shape when in contact with the inner plate 200.

[0035] In the existing technology, due to the large change in the curvature of the sheet metal on the outer side of the door opening 110 at the waistline position of the body 100, the bubble tube 310 of the door sealing strip 300 is prone to twisting and deformation at this position, which makes it impossible for the bubble tube 310 to form a good contact with the inner panel 200 of the door, resulting in poor sealing effect. This makes it easy for wind noise and tire noise from the outside to enter the car through the sealing gap, affecting the quietness of the car interior environment.

[0036] The door sealing structure of this utility model can effectively solve the above problems.

[0037] First, the anti-deformation section on the bubble tube 310, corresponding to the waistline of the body 100, can form a seal in areas with large changes in sheet metal curvature. At the same time, the elastic filler strip 400 is set inside the anti-deformation section of the bubble tube 310. Through the contact and cooperation between the elastic filler strip 400 and the inner wall of the bubble tube 310, the elastic filler strip 400 can provide stable support for the anti-deformation section of the bubble tube 310, effectively preventing the anti-deformation section of the bubble tube 310 from twisting and deforming when in contact with the inner panel 200 or when subjected to external forces. This ensures that the anti-deformation section can always maintain a good contact state with the inner panel 200, thereby ensuring the sealing effect at this position and blocking the path of wind noise and tire noise into the vehicle through the sealing gap.

[0038] Secondly, the elastic filler strip 400 is only set in the deformation-resistant section of the bubble tube 310. The other areas of the bubble tube 310, except for the deformation-resistant section, do not have the elastic filler strip 400. This ensures that the other areas of the bubble tube 310 maintain their original flexible characteristics. During the opening and closing of the car door, the other areas of the bubble tube 310 can achieve normal compression deformation according to the movement trajectory of the car door. This will not affect the normal opening and closing of the car door, and the flexible deformation of the other areas of the bubble tube 310 can further enhance the overall sealing effect, thereby improving the sealing performance of the car door sealing structure as a whole, further reducing the impact of wind noise and tire noise on the in-vehicle environment, and improving the riding experience of the passengers.

[0039] In some embodiments, the anti-deformation segment includes a first component segment 311 and a second component segment 312 spaced apart. The first component segment 311 is located on the front side of the door opening 110, and the second component segment 312 is located on the rear side of the door opening 110. The elastic filling strip 400 includes a first filling strip 410 and a second filling strip (not shown in the figure) spaced apart. The first filling strip 410 is located in the first component segment 311, and the second filling strip is located in the second component segment 312.

[0040] The anti-deformation segments are arranged at intervals on the bubble tube 310. The first component segment 311 is located in the front area of ​​the door opening 110 of the vehicle body 100, and the second component segment 312 is located in the rear area of ​​the door opening 110 of the vehicle body 100. The first component segment 311 and the second component segment 312 are not directly connected and maintain a certain interval. The elastic filler strip 400 is adapted to the structure of the anti-deformation segments and is also arranged at intervals. The overall outline of the first filler strip 410 matches the internal space of the first component segment 311 and is completely placed inside the bubble tube 310 of the first component segment 311. The overall outline of the second filler strip matches the internal space of the second component segment 312 and is completely placed inside the bubble tube 310 of the second component segment 312. The first filler strip 410 and the second filler strip also maintain an interval distance corresponding to that of the first component segment 311 and the second component segment 312.

[0041] By dividing the deformation-resistant section into two spaced-apart first and second constituent sections 311 and correspondingly configuring first and second filler strips 410 and 410, precise support can be provided for the two critical areas of the door opening 110, which are prone to poor sealing. This avoids the need to install elastic filler strips 400 in areas of the door opening 110 where sealing is not critically reinforced, thus reducing material waste. Simultaneously, the spaced-apart structure does not affect the normal flexible deformation of the bubble tube 310 in non-deformation-resistant sections, ensuring proper adaptation of the bubble tube 310 during door opening and closing. This guarantees both the sealing effect in critical areas and the overall flexibility of the bubble tube 310 in use.

[0042] Combination Figure 4 In some embodiments, a first positioning ring 313 is fixedly provided on the inner wall of the bubble tube 310, one end of the first filling strip 410 abuts against the first positioning ring 313, and a second positioning ring (not shown in the figure) is fixedly provided on the inner wall of the bubble tube 310, one end of the second filling strip abuts against the second positioning ring.

[0043] The first positioning ring 313 is located on the inner wall of the bubble tube 310 corresponding to one end of the first constituent segment 311, and the second positioning ring is located on the inner wall of the bubble tube 310 corresponding to one end of the second constituent segment 312. The end face of the first filling strip 410 near the first positioning ring 313 abuts against one side surface of the first positioning ring 313, forming an axial limiting fit; the end face of the second filling strip near the second positioning ring abuts against one side surface of the second positioning ring, forming an axial limiting fit.

[0044] The first positioning ring 313 and the second positioning ring can restrict the axial position of the first filler strip 410 and the second filler strip within the bubble tube 310, preventing axial displacement of the first filler strip 410 and the second filler strip due to vibration, airflow impact, or other factors during vehicle operation. This ensures that the first filler strip 410 and the second filler strip are always located in the critical sealing areas at the front and rear of the doorway 110. Simultaneously, the abutment-type limiting structure is simple and reliable, requiring no additional complex fixing components, thus ensuring positioning effectiveness and simplifying the overall assembly process of the sealing structure. Furthermore, during the insertion of the first filler strip 410 and the second filler strip into the bubble tube 310, the limiting effect of the first positioning ring 313 and the second positioning ring ensures accurate installation of the first component segment 311 and the second component segment 312.

[0045] Combination Figure 5 In some embodiments, at least two annular protrusions 314 are fixedly provided on the inner wall of the bubble tube 310, wherein part of the annular protrusions 314 are located in the first constituent section 311 and the other part of the annular protrusions 314 are located in the second constituent section 312. The periphery of the first filling strip 410 and the periphery of the second filling strip are respectively provided with annular grooves 411 that engage with the annular protrusions 314.

[0046] The annular protrusions 314 are distributed along the axial direction of the bubble tube 310, and are coaxial with the bubble tube 310. A portion of the annular protrusions 314 are located in the inner wall region of the bubble tube 310 corresponding to the first component segment 311, and another portion are located in the inner wall region of the bubble tube 310 corresponding to the second component segment 312. Annular grooves 411 are formed along the circumference of the first filler strip 410, and the number and position of these grooves correspond one-to-one with the number and position of the annular protrusions 314 within the first component segment 311. Similarly, annular grooves 411 are also formed along the circumference of the second filler strip, and the number and position of these grooves correspond one-to-one with the number and position of the annular protrusions 314 within the second component segment 312. The annular protrusions 314 can be embedded into the corresponding annular grooves 411, forming a snap-fit ​​connection.

[0047] The snap-fit ​​engagement between the annular protrusion 314 and the annular groove 411 secures the first filler strip 410 and the second filler strip axially, effectively preventing axial sliding within the bubble tube 310 and ensuring stable support of the deformation-resistant section of the bubble tube 310. Simultaneously, the snap-fit ​​structure facilitates the installation and removal of the filler strips. When replacement or adjustment is required, only slight axial force is needed to disassemble or reassemble, reducing the difficulty of later maintenance and ensuring long-term stable support and sealing performance of the sealing structure.

[0048] Optionally, the annular protrusion 314 located in the first constitutive section 311 gradually tilts from the side near the inner wall of the bubble tube 310 to the side away from the inner wall of the bubble tube 310 towards the first positioning ring 313, and the annular protrusion 314 located in the second constitutive section 312 gradually tilts from the side near the inner wall of the bubble tube 310 to the side away from the inner wall of the bubble tube 310 towards the second positioning ring, and the tilting direction and tilting angle of the annular groove 411 are adapted to the annular protrusion 314.

[0049] The annular protrusion 314 located in the first structural section 311 is inclined towards the first positioning ring 313, and the annular protrusion 314 located in the second structural section 312 is inclined towards the second positioning ring. This inclined structure can provide axial guidance and limiting force for the first filler strip 410 and the second filler strip when they are engaged with the annular protrusion 314. When the filler strip is installed into the bubble tube 310, the inclined annular protrusion 314 guides the filler strip to fit towards the positioning ring, ensuring that one end of the first filler strip 410 and the second filler strip accurately abuts against the first positioning ring 313 and the second positioning ring, preventing axial displacement of the first filler strip 410 and the second filler strip within the bubble tube 310, and keeping the first filler strip 410 and the second filler strip stably in the support position of the anti-deformation section, thus ensuring the support strength of the anti-deformation section.

[0050] Furthermore, the tilt direction is opposite to the direction in which the first filler strip 410 and the second filler strip may move axially, thus creating a reverse blocking force. During vehicle operation, even under the influence of external forces such as vibration and airflow impact, the tilted annular protrusion 314 can effectively limit the axial movement of the first filler strip 410 and the second filler strip, preventing gaps between the first filler strip 410 and the second filler strip and the inner wall of the bubble tube 310. This ensures that the filler strips are always in close contact with the inner wall of the bubble tube 310, continuously providing stable support for the deformation-resistant section and avoiding seal failure caused by filler strip displacement.

[0051] Optionally, the thickness of the annular protrusion 314 located in the first constitutive section 311 gradually decreases from the side near the inner wall of the bubble tube 310 to the side away from the inner wall of the bubble tube 310, and the thickness of the annular protrusion 314 located in the second constitutive section 312 gradually decreases from the side near the inner wall of the bubble tube 310 to the side away from the inner wall of the bubble tube 310, and the shape of the annular groove 411 is adapted to the annular protrusion 314.

[0052] During the installation of the first filler strip 410 and the second filler strip, the thin end of the annular protrusion 314 can guide the annular groove 411 of the first filler strip 410 and the second filler strip, reducing the jamming phenomenon when the annular groove 411 and the annular protrusion 314 are connected, reducing the resistance of the first filler strip 410 and the second filler strip entering the inner cavity of the bubble tube 310, and achieving precise engagement between the protrusion and the groove without repeatedly adjusting the angle of the first filler strip 410 and the second filler strip, simplifying the assembly operation process and improving the assembly efficiency of the sealing structure.

[0053] The annular protrusion 314 has a larger thickness on the side near the inner wall of the bubble tube 310, which ensures the structural strength of the protrusion itself and prevents it from breaking or deforming due to external forces such as vehicle vibration and compression of the bubble tube 310 during long-term use. The thickness gradually decreases on the opposite side, which allows the annular protrusion 314 to form a closer contact with the inner wall of the annular groove 411 of the first filler strip 410 and the second filler strip, reducing the fit gap between them and preventing the first filler strip 410 and the second filler strip from radially shaking in the inner cavity of the bubble tube 310. This ensures that the elastic filler strip 400 always stably supports the deformation-resistant section of the bubble tube 310 and avoids the problem of the bubble tube 310 collapsing and the sealing gap increasing due to the displacement of the filler strip.

[0054] In some embodiments, the elastic filler strip 400 is provided with an inner hole 420, which extends along the extending direction of the elastic filler strip 400.

[0055] Inside the elastic filler strip 400, an inner hole 420 is provided along the length extension direction of the elastic filler strip 400. The inner hole 420 passes through both ends of the elastic filler strip 400. The cross-sectional shape of the inner hole 420 can be circular, elliptical, or other shapes adapted to the internal structure of the elastic filler strip 400. The inner wall of the inner hole 420 is smooth, forming a uniform filler strip body thickness between it and the outer wall of the elastic filler strip 400.

[0056] By setting the inner hole 420, the overall weight of the elastic filler strip 400 can be reduced without compromising its support strength, thus lowering the total weight of the sealing structure and meeting the design requirements for vehicle lightweighting. Simultaneously, the inner hole 420 provides a certain amount of elastic deformation space for the elastic filler strip 400. When the bubble tube 310 is compressed by the inner door panel 200 or impacted by external airflow, the elastic filler strip 400 can adapt to the deformation of the bubble tube 310 through slight deformation of the inner hole 420. This prevents uneven stress on the bubble tube 310 due to excessive rigidity of the elastic filler strip 400, further ensuring tight contact between the bubble tube 310 and the inner door panel 200, and improving the sealing effect.

[0057] Combination Figure 2 and Figure 3 In some embodiments, the sealing strip 300 further includes an installation part 320, which is fixedly connected to the bubble tube 310 and to the position of the vehicle body 100 located around the door opening 110.

[0058] For example, the mounting part 320 and the bubble tube 310 can be made of the same material. One side of the mounting part 320 is fixedly connected to the outer wall of the bubble tube 310 by integral molding or bonding. The other side of the mounting part 320 is fitted to the sheet metal structure around the door opening 110 of the vehicle body 100 and is fixedly connected to the vehicle body 100 by bolt connection, snap-fit ​​or bonding.

[0059] The mounting part 320 can stably fix the bubble tube 310 to the periphery of the door opening 110 of the vehicle body 100, preventing the bubble tube 310 from shifting or falling off due to vibration, airflow impact, or other factors during vehicle operation. This ensures that the bubble tube 310 is always in the correct sealing position, guaranteeing the stability of the sealing effect. At the same time, the mounting part 320 can fill the gap between the bubble tube 310 and the vehicle body 100, reducing airflow seepage from the connection gap between the bubble tube 310 and the vehicle body 100, further improving the sealing performance and reducing the possibility of wind noise entering the vehicle interior.

[0060] In some embodiments, the mounting portion 320 extends circumferentially along the door opening 110. The extension trajectory of the mounting portion 320 coincides with the circumferential contour of the door opening 110 of the vehicle body 100, and the mounting portion 320 forms a continuous annular structure around the door opening 110.

[0061] The mounting portion 320, extending circumferentially along the door opening 110, provides continuous circumferential support for the bubble tube 310, preventing localized loosening of the bubble tube 310 around the door opening 110. This ensures uniform contact pressure between the bubble tube 310 and the inner door panel 200 along the circumference of the door opening 110, improving the continuity and stability of the overall seal. Simultaneously, the continuously extending mounting portion 320 further blocks airflow from infiltrating from any point around the door opening 110, reducing wind noise leakage paths and further enhancing the vehicle's sound insulation.

[0062] Optionally, the width and thickness of the mounting part 320 are kept uniform along the extension direction to ensure that the connection strength of the mounting part 320 is consistent at all positions around the door opening 110. The fixed connection area between the mounting part 320 and the bubble tube 310 is also continuously distributed along the circumference of the door opening 110, so that the bubble tube 310 can obtain stable support through the mounting part 320 at all positions around the door opening 110.

[0063] In some embodiments, the mounting part 320 is provided with a mounting groove 321, and the inner wall of the mounting groove 321 is provided with a snap-fit ​​protrusion 322.

[0064] Specifically, a mounting groove 321 is formed on one side surface of the mounting part 320 along its extending direction. The cross-sectional shape of the mounting groove 321 is adapted to the sheet metal structure around the door opening 110 of the vehicle body 100 used to connect the mounting part 320, and can accommodate the sheet metal structure around the door opening 110 of the vehicle body 100. On the two opposite inner walls of the mounting groove 321, snap-fit ​​protrusions 322 are evenly arranged along the extending direction of the mounting groove 321. The snap-fit ​​protrusions 322 are distributed in strip or dot pattern. When the sheet metal structure around the door opening 110 of the vehicle body 100 is embedded in the mounting groove 321, the snap-fit ​​protrusions 322 can engage with the slots or recesses on the sheet metal structure to form a tight snap-fit ​​fit.

[0065] The mounting slot 321 positions the mounting part 320 to the vehicle body 100, ensuring that the mounting part 320 is quickly and accurately installed in the designated position on the vehicle body 100, thus improving assembly efficiency. The snap-fit ​​protrusion 322 strengthens the connection between the mounting part 320 and the vehicle body 100, preventing the mounting part 320 from loosening or separating from the vehicle body 100 during vehicle operation, ensuring the stable fixing position of the bubble tube 310. Furthermore, the snap-fit ​​structure eliminates the need for additional fasteners, simplifying the assembly process, reducing production costs, and making subsequent disassembly and maintenance more convenient.

[0066] In some embodiments, the bubble tube 310 is provided with a drain hole (not shown) communicating with the inner cavity of the bubble tube 310, and the drain hole is configured to allow the elastic filler strip 400 to pass through.

[0067] A drain hole is provided on the wall of the bubble tube 310, penetrating the wall of the bubble tube 310 and connecting the inner cavity of the bubble tube 310 with the external environment. The drain hole can be specifically located at or near the bottom of the bubble tube 310. The diameter of the drain hole is adapted to the cross-sectional dimensions of the elastic filler strip 400. When the elastic filler strip 400 is installed, it can pass through the drain hole into the inner cavity of the bubble tube 310 and move along the inner cavity of the bubble tube 310 to the anti-deformation section.

[0068] The drainage hole provides a convenient channel for the installation of the elastic filler strip 400, allowing installation without disassembling the bubble tube 310, simplifying the assembly process and improving production efficiency. Simultaneously, the drainage hole promptly drains water accumulated in the inner cavity of the bubble tube 310 due to rainwater seepage, condensation, etc., preventing prolonged water retention that could lead to aging or corrosion of the bubble tube 310 or the elastic filler strip 400, thus extending the service life of the sealing structure and ensuring long-term stable sealing performance.

[0069] This utility model also provides a vehicle, including: a body 100 having a door opening 110; a door, which is openable and closable and disposed on one side of the door opening 110, and the door having an inner panel 200; and the door sealing structure of the above embodiment.

[0070] The side of the vehicle body 100 has a door opening 110 for installing a door. The door is rotatably installed on one side of the door opening 110 via hinges or other connecting components, enabling the door opening 110 to be opened and closed. An inner panel 200 is fixedly installed on the inner side of the door, and the edge of the inner panel 200 is adapted to the edge of the door opening 110. Optionally, two door openings 110 are provided on each side of the vehicle body 100, and each door opening 110 is provided with a corresponding door.

[0071] The sealing strip 300 in the door sealing structure is fixed to the periphery of the door opening 110 of the vehicle body 100 by the mounting part 320. The bubble tube 310 of the sealing strip 300 corresponds to the edge position of the inner panel 200 of the door. When the door is closed, the deformation-resistant section of the bubble tube 310 is in close contact with the inner panel 200 of the door. The elastic filling strip 400 is placed in the deformation-resistant section of the bubble tube 310 to support the bubble tube 310.

[0072] By equipping the vehicle with this door sealing structure, the problem of poor sealing caused by the twisting of the 310 foam tube at the waistline in traditional doors can be effectively solved, significantly improving the sealing performance of the doors. On the one hand, this sealing structure can reduce the infiltration of external airflow into the vehicle through the door gaps, reduce the intensity of wind noise and tire noise entering the vehicle, improve the quietness of the cabin, and enhance the passenger's riding experience. On the other hand, the good sealing performance can also reduce the entry of rainwater, dust, and other impurities into the vehicle, protecting internal components, extending the vehicle's service life, and also helping to improve the vehicle's air conditioning cooling or heating efficiency, reducing energy consumption.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A door sealing structure, characterized in that, Applied to automobiles, the automobile includes a body and doors, the body having a door opening, the doors being openable and closable on one side of the door opening, the doors having an inner panel, and the door sealing structure including: A sealing strip, the sealing strip including a bubble tube extending circumferentially along the door opening, the bubble tube having a deformation-resistant section located at the waistline of the vehicle body and in contact with the inner panel when the door is closed; An elastic filler strip is disposed inside the bubble tube and located in the anti-deformation section, and the outer wall of the elastic filler strip is in contact with the inner wall of the bubble tube.

2. The door sealing structure according to claim 1, characterized in that, The deformation-resistant section includes a first component section and a second component section arranged at intervals. The first component section is located on the front side of the door opening, and the second component section is located on the rear side of the door opening. The elastic filling strip includes a first filling strip and a second filling strip arranged at intervals. The first filling strip is located in the first component section, and the second filling strip is located in the second component section.

3. The door sealing structure according to claim 2, characterized in that, A first positioning ring is fixedly provided on the inner wall of the bubble tube, and one end of the first filling strip abuts against the first positioning ring. A second positioning ring is fixedly provided on the inner wall of the bubble tube, and one end of the second filling strip abuts against the second positioning ring.

4. The door sealing structure according to claim 2, characterized in that, The inner wall of the bubble tube is fixedly provided with at least two annular protrusions, some of which are located in the first component section and others are located in the second component section. The periphery of the first filling strip and the periphery of the second filling strip are respectively provided with annular grooves that engage with the annular protrusions.

5. The door sealing structure according to any one of claims 1 to 4, characterized in that, The elastic filler strip is provided with an inner hole, which extends along the extension direction of the elastic filler strip.

6. The door sealing structure according to any one of claims 1 to 4, characterized in that, The sealing strip also includes an installation part, which is fixedly connected to the bubble tube and to the position of the vehicle body located around the door opening.

7. The door sealing structure according to claim 6, characterized in that, The mounting portion extends circumferentially along the doorway.

8. The door sealing structure according to claim 6, characterized in that, The mounting part is provided with a mounting groove, and the inner wall of the mounting groove is provided with snap-fit ​​protrusions.

9. The door sealing structure according to any one of claims 1 to 4, characterized in that, The bubble tube is provided with a drain hole communicating with the inner cavity of the bubble tube, and the drain hole is configured to allow the elastic filler strip to pass through.

10. A vehicle, characterized in that, include: The vehicle body has a doorway; A car door is closable and is provided on one side of the doorway, and the car door is provided with an inner panel; The door sealing structure as described in any one of claims 1 to 9.

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