Sealing connection assembly, sealing connection method, vehicle body structure and vehicle

Abstract

The invention relates to a sealing connection assembly, a sealing connection method, a vehicle body structure and a vehicle. A first piece (1) of the sealing connection assembly is provided with a first sealing face (11); the second piece (2) is provided with a second sealing surface (21) matched with the first sealing surface (11), and a retaining part is arranged on the second sealing surface (21); and a first sealing portion (3) located in a gap between the first sealing surface (11) and the second sealing surface (21) in the sealing position and located on one side of the holding portion in the second direction (y).

Description

Technical Field

[0001] This disclosure relates to the field of structural component sealing technology, and in particular to a sealing connection assembly, sealing connection method, vehicle body structure and vehicle. Background Technology

[0002] When two parts are joined together, there is a need for sealing in some situations. When the joining direction of the parts is parallel to the surface to be sealed, for example, when the parts are joined vertically and the surface to be sealed is vertical, the sealing material between the surfaces to be sealed of the two parts will be squeezed and scraped during the joining process, causing the sealing material to be scraped away or damaged, resulting in sealing failure. Summary of the Invention

[0003] Embodiments of this disclosure provide a sealing connection assembly, a sealing connection method, a vehicle body structure, and a vehicle that can optimize the sealing effect between two parts.

[0004] The first aspect of this disclosure provides a sealed connection assembly, comprising:

[0005] The first component has a first sealing surface;

[0006] The second component has a second sealing surface that mates with the first sealing surface, and a retaining portion is provided on the second sealing surface; and

[0007] The first sealing part is located in the gap between the first sealing surface and the second sealing surface at the sealing position, and is located on one side of the retaining part along the second direction.

[0008] This embodiment, by providing a retaining portion on the second sealing surface of the second component, ensures that the shape of the first sealing portion remains unchanged during the process of the second component approaching and preparing to be assembled with the first component. Even if the gap between the second and first sealing surfaces is small during the movement and assembly process, it can prevent the movement of the second component from causing scratch damage to the first sealing portion, thus avoiding affecting the sealing effect. Moreover, after the second component is assembled to the sealing position, the first sealing portion is located within the gap between the first and second sealing surfaces, forming a thin-layer structure with a certain width in the second direction, thereby achieving a superior sealing effect.

[0009] In some embodiments, the first sealing portion is configured to maintain its shape by a retaining portion during the process of the second piece moving and fitting together to the initial position of the first piece along a first direction parallel to the first sealing surface, and to undergo elastic deformation and at least partially detach from the retaining portion during the process of the second piece moving to the sealing position along a second direction, and to be located in the gap between the first sealing surface and the second sealing surface, wherein the second direction is perpendicular to the first direction.

[0010] This embodiment, by providing a retaining portion on the second sealing surface of the second component, ensures that the shape of the first sealing portion remains unchanged during the movement and assembly of the second component along the first direction to its initial position. Even if the gap between the second and first sealing surfaces is small during the movement and assembly, it prevents the movement of the second component from causing scratch damage to the first sealing portion, thus avoiding affecting the sealing effect. Moreover, after the second component is assembled in place, by translating the second component along the second direction, the first sealing portion can be elastically deformed and at least partially detached from the retaining portion, being squeezed into the gap between the first and second sealing surfaces to form a thin-layer structure with a certain width in the second direction, achieving a superior sealing effect. In some embodiments, the first sealing portion extends along the first direction, and the retaining portion includes a groove extending along the first direction, the groove penetrating the second sealing surface at least at one end near the first component during the movement and assembly.

[0011] In some embodiments, the first sealing portion extends along a first direction, and the retaining portion includes a groove extending along the first direction, the groove penetrating the second sealing surface at least at one end of the first member during the moving assembly.

[0012] In this embodiment, the groove first penetrates the second sealing surface at least at one end near the first part during the movement and assembly. When the second part moves along the first direction to the first sealing part, the first sealing part can enter the groove through the end of the through groove, which can prevent the second part from causing scratch damage to the first sealing part.

[0013] In some embodiments, the first sealing portion extends through the first sealing surface in a first direction, and the groove extends through the second sealing surface in a first direction.

[0014] This embodiment enables the first sealing portion to form a sealing interface between the first sealing surface and the second sealing surface throughout the entire first direction, thereby improving the sealing effect between the first and second components. Furthermore, after the second component moves laterally along the second direction, it carries the first sealing portion out of the groove and ultimately into the gap between the first and second sealing surfaces, forcing the first sealing portion to be compressed into a thin-layer structure. The width of this thin-layer structure along the second direction is greater than the width of the groove, achieving a better sealing effect.

[0015] In some embodiments, the groove has an arc-shaped cross-section, and both sides of the groove are smoothly connected to the second sealing surface through transition portions.

[0016] In this embodiment, the groove is configured as an arc-shaped groove, and transition portions are provided on both sides of the groove. During the process of the second part moving and assembling along the first direction, sharp parts can be prevented from causing scratch damage to the first sealing part, thus ensuring the sealing effect. Moreover, by providing transition portions, during the process of the second part moving along the second direction to the sealing position, it is also beneficial for the first sealing part to disengage from the groove and enter the gap between the first sealing surface and the second sealing surface, thereby improving the sealing performance.

[0017] In some embodiments, the first sealing portion is configured to be located in the middle region of the first sealing surface along the second direction at an initial position, and the groove is located in the middle region of the second sealing surface along the second direction.

[0018] This embodiment places the first sealing portion in the middle region of the first sealing surface along the second direction. Compared with sealing at the edge, this improves the reliability of the sealing connection between the first and second parts. The first sealing portion is less susceptible to the influence of external moisture and dust on its sealing performance, thus maintaining its sealing performance over long-term use. Furthermore, it allows space for the second part to move to one side along the second direction, ensuring that the first sealing portion formed after compression is as close as possible to the middle region of the first sealing surface.

[0019] In some embodiments, the first component further has a third sealing surface, which is perpendicular to and adjacent to the first sealing surface, and the third sealing surface is located at the first end of the first sealing portion; the second component further has a fourth sealing surface, which is perpendicular to and adjacent to the second sealing surface, and the fourth sealing surface is located at the first end of the groove.

[0020] A second sealing portion extending along a third direction is provided between the third sealing surface and the fourth sealing surface, and the third direction is perpendicular to the first direction and the second direction.

[0021] This embodiment improves the sealing effect by providing a second sealing part on two adjacent sealing surfaces, for example, the second sealing part and the second sealing part can intersect at the junction of the two sealing surfaces. Moreover, during the process of the second piece moving along the first direction to bring the fourth sealing surface closer to the third sealing surface, since the moving direction is perpendicular to the sealing surface, the second sealing part will not be scratched or damaged during the movement of the second piece. When the fourth sealing surface continues to press down after contacting the second sealing part, the second sealing part deforms and is squeezed to form a thin layer structure with a certain width in the second direction, which plays a sealing role.

[0022] In some embodiments, the first component further has a fifth sealing surface, which is perpendicular to and adjacent to the first sealing surface, and the fifth sealing surface is located at the second end of the first sealing portion; the second component further has a sixth sealing surface, which is perpendicular to and adjacent to the second sealing surface, and the sixth sealing surface is located at the second end of the groove.

[0023] A third sealing portion extending in a third direction is provided between the fifth sealing surface and the sixth sealing surface, and the third sealing portion and the second sealing portion extend in opposite directions relative to the first sealing portion.

[0024] This embodiment maximizes the sealing effect by providing a third and a fifth sealing surface extending in opposite directions at both ends of the first sealing surface along the first direction, and providing a second and a third sealing portion on these two oppositely extending sealing surfaces, thus forming an "U"-shaped sealing interface between the first and second parts. Furthermore, during the movement of the second part along the first direction, bringing the sixth sealing surface closer to the fifth sealing surface, the movement direction is perpendicular to the sealing surface, preventing any scratching or damage to the third sealing portion. When the sixth sealing surface contacts the third sealing portion and continues to press down, the third sealing portion deforms and is compressed, forming a thin layer structure with a certain width in the second direction, thus achieving a sealing effect.

[0025] In some embodiments,

[0026] The first component includes a mounting beam and a first plate. The mounting beam has adjacent first and second sides. The first plate, which extends along a second direction, is vertically mounted on the first side. The area between the second side and the first plate on the first side serves as a first sealing surface. The second side serves as a third sealing surface. The surface of the first plate adjacent to the first sealing surface serves as a fifth sealing surface.

[0027] The second component includes a second plate, a third plate, and a fourth plate. The third plate and the fourth plate are respectively connected to the two ends of the second plate along a first direction and extend in different directions. The second plate has a second sealing surface that mates with the first sealing surface, the third plate has a fourth sealing surface that mates with the third sealing surface, and the fourth plate has a sixth sealing surface that mates with the fifth sealing surface.

[0028] In this embodiment, the first and second components form a U-shaped sealing interface, maximizing the sealing effect. For the sealing portions, such as adhesive, provided on the third and fifth sealing surfaces, during the movement of the second component along the first direction to bring the two sealing surfaces closer together, the movement direction is perpendicular to the sealing surfaces, thus preventing scratch damage to the sealing portions on the third and fifth sealing surfaces. For the first sealing portion on the first sealing surface, the groove on the second sealing surface, which provides a threshold fit, prevents damage to the first sealing portion during the assembly process along the first direction, thereby ensuring the sealing effect.

[0029] In some embodiments, the first sealing portion, the second sealing portion, and / or the third sealing portion are made of adhesive, foam, or rubber.

[0030] This embodiment selects adhesive as the sealing element, which facilitates application to the first component. Furthermore, when the second component moves along the second direction, the adhesive easily flows out of the groove and into the gap between the first and second sealing surfaces, promoting the formation of a uniform adhesive layer for a superior sealing effect. Alternatively, foam or rubber components can be selected as the sealing element. These components are less prone to scratches or damage during the movement and assembly of the second component, and their rebound force provides a superior sealing effect after entering the gap between the two sealing surfaces.

[0031] In some embodiments, a first part has a first hole and a second part has a second hole, and the first part and the second hole are connected by fasteners passing through the first hole and the second hole.

[0032] In this embodiment, after the first and second parts are sealed together, they are then connected by fasteners. The fasteners mainly bear the connection force between the first and second parts, thereby reducing the external force on the sealing part. This can prevent the sealing from failing due to the increase in the sealing gap and help maintain the sealing effect. Moreover, the pre-tightening force applied by the fasteners can also provide pre-pressure to the sealing part, resulting in a better sealing effect.

[0033] A second aspect of this disclosure provides a vehicle body structure including the sealing connection assembly described in the above embodiments.

[0034] In some embodiments, the first component includes a front floor assembly, the second component includes a front cabin assembly, and the passenger compartment is located above the front floor assembly and the front cabin assembly.

[0035] This disclosure provides a third aspect of a vehicle, including the body structure of the above embodiments.

[0036] This disclosure provides a fourth aspect of a sealing connection method for implementing the sealing connection assembly of the above embodiments. The sealing connection method includes:

[0037] A first sealing part is provided on the first sealing surface of the first component;

[0038] The second part is moved and assembled to the initial position of the first part along a first direction parallel to the first sealing surface. The second part has a second sealing surface and a retaining part is provided on the second sealing surface to keep the shape of the first sealing part unchanged during the moving and assembling process.

[0039] The second part is moved to the sealing position along the second direction, so that the first sealing part is elastically deformed and at least partially separated from the retaining part, and is located between the first sealing surface and the second sealing surface, and is located on one side of the retaining part along the second direction.

[0040] In some embodiments, the sealing connection method further includes:

[0041] Before moving and assembling the second piece along the first direction, the second piece is positioned relative to the first piece along the second and third directions so that the first sealing part is aligned with the retaining part, and the third direction is perpendicular to the first and second directions.

[0042] In some embodiments, the sealing connection method further includes:

[0043] A limiting structure is provided to limit the movement of the second piece in the second direction, so that the second piece stops when it reaches the sealing position.

[0044] In some embodiments, before the moving assembly, the first sealing part is disposed in the middle region of the first sealing surface along the second direction, and the retaining part is located in the middle region of the second sealing surface along the second direction.

[0045] In some embodiments, the first sealing portion extends along a first direction, and the retaining portion includes a groove extending along the first direction, the groove penetrating the second sealing surface at least at one end of the first member during the moving assembly.

[0046] In some embodiments, the first component further has a third sealing surface, which is perpendicular to and adjacent to the first sealing surface, and is located at a first end of the first sealing portion; the second component further has a fourth sealing surface, which is perpendicular to and adjacent to the second sealing surface, and is located at a first end of the groove; the sealing connection method further includes:

[0047] Before the second piece is moved and assembled, a second sealing part extending in the third direction is provided on the third sealing surface;

[0048] In this process, after the second part moves to the sealing position, the second sealing part is squeezed and deformed between the third sealing surface and the fourth sealing surface, with the third direction perpendicular to the first and second directions.

[0049] In some embodiments, the first component further has a fifth sealing surface, which is perpendicular to and adjacent to the first sealing surface, and is located at the second end of the first sealing portion; the second component further has a sixth sealing surface, which is perpendicular to and adjacent to the second sealing surface, and is located at the second end of the groove; the sealing connection method further includes:

[0050] Before the second piece is moved and assembled, a third sealing part is provided on the fifth sealing surface, extending in a third direction. The third sealing part and the second sealing part extend in opposite directions relative to the first sealing part, so that after the second piece is moved to the sealing position, the third sealing part is squeezed and deformed and located between the fifth sealing surface and the sixth sealing surface.

[0051] In some embodiments, the sealing connection method further includes:

[0052] After the second piece is moved to the sealing position along the second direction, the first and second pieces are connected by fasteners. Attached Figure Description

[0053] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:

[0054] Figure 1 This is a schematic diagram of the structure of some embodiments of the first component in the sealed connection structure of this disclosure.

[0055] Figure 2 This is a schematic diagram of the structure of the second component in the sealed connection structure of this disclosure.

[0056] Figure 3 This is a schematic diagram showing the second piece moving along the first direction and joining it with the first piece.

[0057] Figure 4 This is a structural diagram showing the second piece in its initial position after being joined with the first piece.

[0058] Figure 5 for Figure 4 AA sectional view.

[0059] Figure 6 This is a schematic diagram of the structure in which the second component moves to the sealing position along the second direction.

[0060] Figure 7 for Figure 6 BB cross-sectional view.

[0061] Figure 8 for Figure 6 A cross-sectional view in a plane perpendicular to the first direction.

[0062] Explanation of reference numerals in the attached figures

[0063] 1. First component; 11. First sealing surface; 12. Third sealing surface; 13. Fifth sealing surface; 14. Mounting beam; 15. First plate; 16. First hole;

[0064] 2. Second component; 21. Second sealing surface; 22. Fourth sealing surface; 23. Sixth sealing surface; 24. Groove; 25. Transition section; 26. Second plate; 27. Third plate; 28. Fourth plate; 29. ​​Second hole;

[0065] 3. First sealing part;

[0066] 4. Second sealing part;

[0067] 5. Third sealing part;

[0068] 6. Fasteners;

[0069] x, first direction; y, second direction; z, third direction. Detailed Implementation

[0070] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0071] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0072] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0073] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0074] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0075] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0076] In related technologies, the main reason why sealing failure is likely to occur when the splicing direction of parts is parallel to the surface to be sealed is that, taking the top-to-bottom splicing as an example, after a sealing material, such as sealant, is applied to the surface to be sealed of the first part below, the second part is restricted by the fit of the parts or the installation space when splicing from top to bottom. It can only move downward with a small gap to the surface to be sealed. In this way, when the second part reaches the position of the sealing material, the sealing material will be squeezed or scraped, causing the sealing material to be scraped away or damaged, resulting in sealing failure during subsequent use.

[0077] Firstly, such as Figures 1 to 8 As shown, this disclosure provides a sealing connection assembly, which in some embodiments includes:

[0078] The first component 1 has a first sealing surface 11;

[0079] The second component 2 has a second sealing surface 21 that mates with the first sealing surface 11, and a retaining portion is provided on the second sealing surface 21; and

[0080] The first sealing part 3 is located in the gap between the first sealing surface 11 and the second sealing surface 21 at the sealing position, and is located on one side of the retaining part along the second direction y, which is perpendicular to the first direction x.

[0081] The sealing connection assembly is the final form of the second part 2 when it is in the sealing position. In this state, the first sealing part 3 can be a thin structure with a preset width along the second direction y.

[0082] For example, the first sealing surface 11 and the second sealing surface 21 are planar. For example, the first sealing surface 11 and the second sealing surface 21 are vertically arranged, and the first direction x is also a vertical direction.

[0083] This embodiment, by providing a retaining portion on the second sealing surface 21 of the second component 2, ensures that the shape of the first sealing portion 3 remains unchanged during the process of the second component 2 approaching and preparing to be assembled with the first component 1. Even if the gap between the second sealing surface 21 and the first sealing surface 11 is small during the movement and assembly process, it can prevent the movement of the second component 2 from causing scratch damage to the first sealing portion 3, thus avoiding affecting the sealing effect. Moreover, after the second component 2 is assembled to the sealing position, the first sealing portion 3 is located in the gap between the first sealing surface 11 and the second sealing surface 21, forming a thin-layer structure with a certain width in the second direction y, thereby achieving a superior sealing effect.

[0084] In some embodiments, the first sealing part 3 is configured to maintain its shape by a retaining part during the process of the second piece 2 moving and fitting together with the first piece 1 in a first direction x parallel to the first sealing surface 11, and to undergo elastic deformation and at least partially detach from the retaining part during the process of the second piece 2 moving to the sealing position in a second direction y, and to be located in the gap between the first sealing surface 11 and the second sealing surface 21.

[0085] This sealing connection assembly can be obtained as follows: First, a first sealing portion 3 is provided on the first sealing surface 11 of the first piece 1; second, the second piece 2 is moved and assembled to the initial position of the first piece 1 along a first direction x parallel to the first sealing surface 11. The second piece 2 has a second sealing surface 21, on which a retaining portion is provided so that the first sealing portion 3 is located within the retaining portion during the moving and assembling process; then, the second piece 2 is moved to the sealing position along a second direction y, causing the first sealing portion 3 to elastically deform and at least partially detach from the retaining portion, and to be located between the first sealing surface 11 and the second sealing surface 21, and along the second direction y on the side of the retaining portion closer to the front of the movement of the second piece 2. The first sealing portion 3 forms a thin layer structure, and its width along the second direction y is greater than the width of the groove 24.

[0086] This embodiment, by providing a retaining portion on the second sealing surface 21 of the second piece 2, ensures that the shape of the first sealing portion 3 remains unchanged during the process of the second piece 2 moving and assembling along the first direction x to the initial position. Even if the gap between the second sealing surface 21 and the first sealing surface 11 is small during the movement and assembly, it can prevent the movement of the second piece 2 from causing scratch damage to the first sealing portion 3, thus avoiding affecting the sealing effect. Moreover, after the second piece 2 is assembled in place, by translating the second piece 2 along the second direction y, the first sealing portion 3 can be elastically deformed and at least partially detached from the retaining portion, being squeezed into the gap between the first sealing surface 11 and the second sealing surface 21, forming a thin-layer structure with a certain width in the second direction y, thereby achieving a superior sealing effect.

[0087] In some embodiments, the first sealing portion 3 extends along the first direction x, and the retaining portion includes a groove 24 extending along the first direction x, wherein the groove 24 passes through the second sealing surface 21 at least at one end near the first piece 1 during the moving assembly.

[0088] The first sealing part 3 can be a slender strip extending along the first direction x, and the cross-sectional area of ​​the groove 24 in the plane perpendicular to the first direction x is greater than the cross-sectional area of ​​the first sealing part 3, so that the first sealing part 3 can be completely accommodated in the groove 24.

[0089] For example, one groove 24 can be provided. Alternatively, multiple parallel grooves 24 can be provided at intervals along the second direction y. Correspondingly, one first sealing part 3 can be provided, thereby allowing the first sealing part 3 to be selectively provided at positions corresponding to different grooves 24; or multiple first sealing parts 3 can be provided, with multiple first sealing parts 3 corresponding one-to-one with multiple grooves 24.

[0090] In this embodiment, the groove 24 first penetrates the second sealing surface 21 at least one end near the first piece 1 during the movement and assembly. When the second piece 2 moves along the first direction x to the first sealing part 3, the first sealing part 3 can enter the groove 24 through the end of the through groove 24, which can prevent the second piece 2 from causing scratch damage to the first sealing part 3.

[0091] In some embodiments, the first sealing portion 3 extends through the first sealing surface 11 along the first direction x, and the groove 24 extends through the second sealing surface 21 along the first direction x.

[0092] This embodiment enables the first sealing part 3 to form a sealing interface along the entire first direction x between the first sealing surface 11 and the second sealing surface 21, thereby improving the sealing effect between the first component 1 and the second component 2. Furthermore, after the second component 2 moves laterally along the second direction y, it carries the first sealing part 3 out of the groove 24 and ultimately into the gap between the first sealing surface 11 and the second sealing surface 21, forcing the first sealing part 3 to be compressed into a thin-layer structure. The width of this thin-layer structure along the second direction y is greater than the width of the groove 24, achieving a better sealing effect.

[0093] In some embodiments, such as Figure 5 As shown, the cross-section of the groove 24 is arc-shaped, and both sides of the groove 24 are smoothly connected to the second sealing surface 21 through the transition portion 25.

[0094] For example, the cross-section of the groove 24 can be arc-shaped.

[0095] In this embodiment, the groove 24 is configured as an arc-shaped groove, and transition portions 25 are provided on both sides of the groove 24. During the process of the second piece 2 moving and assembling along the first direction x, this prevents sharp parts from causing scratch damage to the first sealing part 3, ensuring the sealing effect. Moreover, by providing transition portions 25, during the process of the second piece 2 moving along the second direction y to the sealing position, it is also beneficial for the first sealing part 3 to disengage from the groove 24 and enter the gap between the first sealing surface 11 and the second sealing surface 21, thereby improving the sealing performance.

[0096] In some embodiments, such as Figure 1 As shown, the first sealing part 3 is configured to be located in the middle region of the first sealing surface 11 along the second direction y in the initial position, and the groove 24 is located in the middle region of the second sealing surface 21 along the second direction y.

[0097] In some embodiments, such as Figure 1 As shown, before the movement and assembly, the first sealing part 3 is located in the middle region of the first sealing surface 11 along the second direction y, and the retaining part is located in the middle region of the second sealing surface 21 along the second direction y.

[0098] In this embodiment, the first sealing part 3 is located in the middle region of the first sealing surface 11 along the second direction y. Compared with sealing at the edge, this improves the reliability of the sealing connection between the first piece 1 and the second piece 2. The first sealing part 3 is less susceptible to the influence of external moisture and dust on its sealing performance, and it helps maintain its sealing performance after long-term use. Moreover, it allows space for the second piece 2 to move to one side along the second direction y, so that the first sealing part 3 formed after compression is as close as possible to the middle region of the first sealing surface 11.

[0099] In some embodiments, the first component 1 further has a third sealing surface 12, which is perpendicular to and adjacent to the first sealing surface 11, and the third sealing surface 12 is located at the first end of the first sealing portion 3; the second component 2 further has a fourth sealing surface 22, which is perpendicular to and adjacent to the second sealing surface 21, and the fourth sealing surface 22 is located at the first end of the groove 24.

[0100] Among them, a second sealing part 4 extending along the third direction z is provided between the third sealing surface 12 and the fourth sealing surface 22, and the third direction z is perpendicular to the first direction x and the second direction y.

[0101] This embodiment further improves the sealing effect by providing a second sealing part 3 and a second sealing part 4 on two adjacent sealing surfaces, for example, the second sealing part 3 and the second sealing part 4 can intersect at the adjacent point of the two sealing surfaces. Moreover, during the process of the second piece 2 moving along the first direction x to bring the fourth sealing surface 22 close to the third sealing surface 12, since the moving direction is perpendicular to the sealing surface, the second sealing part 4 will not be scratched or damaged during the movement of the second piece 2. When the fourth sealing surface 22 continues to press down after contacting the second sealing part 4, the second sealing part 4 deforms and is squeezed to form a thin layer structure with a certain width in the second direction y, which plays a sealing role.

[0102] In some embodiments, the first component 1 further has a fifth sealing surface 13, which is perpendicular to and adjacent to the first sealing surface 11, and the fifth sealing surface 13 is located at the second end of the first sealing portion 3; the second component 2 further has a sixth sealing surface 23, which is perpendicular to and adjacent to the second sealing surface 21, and the sixth sealing surface 23 is located at the second end of the groove 24.

[0103] Among them, a third sealing part 5 extending along the third direction z is provided between the fifth sealing surface 13 and the sixth sealing surface 23, and the third sealing part 5 and the second sealing part 4 extend in opposite directions relative to the first sealing part 3.

[0104] This embodiment provides a third sealing surface 12 and a fifth sealing surface 13 extending in opposite directions at both ends of the first sealing surface 11 along the first direction x, and provides a second sealing part 4 and a third sealing part 5 on these two oppositely extending sealing surfaces, so that the first piece 1 and the second piece 2 form a "Z"-shaped sealing interface, which can maximize the sealing effect. Moreover, during the process of the second piece 2 moving along the first direction x to bring the sixth sealing surface 23 close to the fifth sealing surface 13, since the moving direction is perpendicular to the sealing surface, the third sealing part 5 will not be scratched or damaged during the movement of the second piece 2. When the sixth sealing surface 23 continues to press down after contacting the third sealing part 5, the third sealing part 5 deforms and is squeezed to form a thin layer structure with a certain width in the second direction y, which plays a sealing role.

[0105] In some embodiments, such as Figure 1 and Figure 2 As shown, the first component 1 includes a mounting beam 14 and a first plate 15. The mounting beam 14 has an adjacent first side and a second side. The first plate 15, which extends along the second direction y, is vertically mounted on the first side. The area between the second side and the first plate 15 on the first side serves as a first sealing surface 11. The second side serves as a third sealing surface 12. The surface of the first plate 15 adjacent to the first sealing surface 11 serves as a fifth sealing surface 13.

[0106] The second component 2 includes a second plate 26, a third plate 27, and a fourth plate 28. The third plate 27 and the fourth plate 28 are respectively connected to both ends of the second plate 26 along a first direction x and extend in different directions. The second plate 26 has a second sealing surface 21 that mates with the first sealing surface 11, the third plate 27 has a fourth sealing surface 22 that mates with the third sealing surface 12, and the fourth plate 28 has a sixth sealing surface 23 that mates with the fifth sealing surface 13. For example, the first component 1 and the second component 2 can be sheet metal parts.

[0107] In this embodiment, the first component 1 and the second component 2 form a Z-shaped sealing interface, which maximizes the sealing effect. For the sealing portions, such as adhesive, provided on the third sealing surface 12 and the fifth sealing surface 13, during the movement of the second component 2 along the first direction x to bring the two sealing surfaces closer together, since the movement direction is perpendicular to the sealing surfaces, the sealing portions on the third sealing surface 12 and the fifth sealing surface 13 will not be scratched or damaged during the movement of the second component 2. For the first sealing portion 3 provided on the first sealing surface 11, since the second sealing surface 21 with the threshold fit has a groove 24, damage to the first sealing portion 3 can be prevented during the assembly process along the first direction x, thereby ensuring the sealing effect.

[0108] In some embodiments, the first sealing part 3, the second sealing part 4 and / or the third sealing part 5 are made of adhesive, foam or rubber.

[0109] In this design, when using adhesive, the sealing portion coated on the first component 1 can be a long, thin strip structure. When the second component 2 is assembled to the initial position of the first component 1, by moving the second component 2 along the second direction y, adhesive can flow out from the groove 24 into the first sealing portion 3 and enter the area between the first sealing surface 11 and the second sealing surface 21 near the front of the moving direction. The adhesive is then compressed to form a thin layer structure. For example, the adhesive may have a foaming function, resulting in better sealing performance because after a period of time, the adhesive expands into long bubbles that fill the gaps between the sealing surfaces.

[0110] When foam or rubber parts are used, they can have a large elastic deformation capacity. In order to facilitate deformation, the first sealing part 3 can be semi-circular. Correspondingly, the groove 24 can also be semi-circular. When the second part 2 moves along the second direction y, the first sealing part 3 moves out from the groove 24 and enters the gap between the first sealing surface 11 and the second sealing surface 21. It is squeezed into a thin layer structure and plays a sealing role through the rebound force after being compressed.

[0111] In this embodiment, adhesive is chosen as the sealing element. This facilitates application to the first component 1, and when the second component 2 moves along the second direction y, the adhesive easily flows out from the groove 24 and enters the gap between the first sealing surface 11 and the second sealing surface 21, which helps to form a uniform adhesive layer and achieve a better sealing effect. Alternatively, foam or rubber components can be chosen as the sealing element. During the movement and assembly of the second component 2, it is less likely to be scratched or damaged, and after entering the gap formed by the two sealing surfaces, it can achieve a better sealing effect through rebound force.

[0112] In some embodiments, the first component 1 is provided with a first hole 16, and the second component 2 is provided with a second hole 29. The first component 1 and the second hole 29 are connected by a fastener 6 passing through the first hole 16 and the second hole 29.

[0113] Among them, such as Figure 1 As shown, both the third sealing surface 12 of the mounting beam 14 and the first plate 15 are provided with first holes 16, such as... Figure 2 As shown, both the third plate 27 and the fourth plate 28 are provided with a second hole 29. The fastener 6 is positioned to avoid the sealing position.

[0114] In this embodiment, after the first piece 1 and the second piece 2 are sealed together, they are then connected by fastener 6. Fastener 6 mainly bears the connection force of the first piece 1 and the second piece 2, thereby reducing the external force on the sealing part and preventing sealing failure due to the increase of the sealing gap, which is conducive to maintaining the sealing effect. Moreover, the pre-tightening force applied by fastener 6 can also provide pre-pressure to the sealing part, thereby obtaining a better sealing effect.

[0115] In some specific embodiments, such as Figure 1 and Figure 2 As shown, the first component 1 includes a mounting beam 14 and a first plate 15. The mounting beam 14 has adjacent first and second sides. The first plate 15, extending along a second direction y, is vertically mounted on the first side. The area between the first side and the second side serves as a first sealing surface 11, the second side serves as a third sealing surface 12, and the surface of the first plate 15 adjacent to the first sealing surface 11 serves as a fifth sealing surface 13. The second component 2 includes a second plate 26, a third plate 27, and a fourth plate 28. The third plate 27 and the fourth plate 28 are respectively connected to both ends of the second plate 26 along a first direction x and extend in different directions. The second plate 26 has a second sealing surface 21 that mates with the first sealing surface 11, the third plate 27 has a fourth sealing surface 22 that mates with the third sealing surface 12, and the fourth plate 28 has a sixth sealing surface 23 that mates with the fifth sealing surface 13.

[0116] First, such as Figure 1 As shown, before assembling the first piece 1 and the second piece 2, a first sealing part 3 extending along the first direction x is provided on the first sealing surface 11 of the mounting beam 14, a second sealing part 4 extending along the third direction z is provided on the third sealing surface 12 of the mounting beam 14, and a third sealing part 5 extending along the third direction z is provided on the first plate 15. The first sealing part 3, the second sealing part 4 and the third sealing part 5 are connected in sequence.

[0117] Next, as Figure 3 As shown, the second piece 2 is moved along the first direction x parallel to the first sealing surface 11 and assembled with the first piece 1 in place, as follows. Figure 4 As shown, at this time, it is in the initial position of the first piece 1 along the second direction y. During the movement and assembly process, as... Figure 5 As shown, the first sealing part 3 enters the groove 24 and its shape remains unchanged.

[0118] Then, as Figure 6 and Figure 7 As shown, the second piece 2 is moved a predetermined distance along the second direction y to reach the sealing position, causing the first sealing part 3 to elastically deform and at least partially disengage from the groove 24, and be positioned between the first sealing surface 11 and the second sealing surface 21, and located on one side of the groove 24 along the second direction y. Meanwhile, as... Figure 8As shown, the second sealing part 4 and the third sealing part 5 are compressed into a thin layer structure.

[0119] Thus, the contact area between the first sealing surface 11 and the second sealing surface 21 achieves a sealing effect on both sides along the first direction x.

[0120] Secondly, this disclosure provides a vehicle body structure, including the sealing connection assembly of the above embodiments.

[0121] This vehicle body structure, by employing the sealing connection assembly of the present disclosure embodiment, can prevent the first sealing part 3 from being scratched and damaged during sealing connection for structures with the splicing direction parallel to the sealing mating surface, thus ensuring the sealing performance of the vehicle body structure.

[0122] In some embodiments, the first component 1 includes a front floor assembly, the second component 2 includes a front cabin assembly, and the passenger compartment is located above the front floor assembly and the front cabin assembly.

[0123] This embodiment places a sealed connection structure between the front floor assembly and the front compartment assembly of the vehicle, which can prevent dust or water in the passenger compartment from entering under the floor and ensure the cleanliness under the floor. For example, when installing the battery, it can also prevent interference with the reliability and safety of battery use.

[0124] Thirdly, this disclosure provides a vehicle including the body structure of the above embodiments. Because this vehicle body structure has superior sealing performance, it also ensures the overall performance stability of the vehicle.

[0125] Fourthly, this disclosure proposes a sealing connection method for achieving a sealing connection between the first component 1 and the second component 2. The sealing connection method includes:

[0126] A first sealing part 3 is provided on the first sealing surface 11 of the first component 1;

[0127] The second piece 2 is moved and assembled along a first direction x parallel to the first sealing surface 11 to the initial position of the first piece 1. The second piece 2 has a second sealing surface 21, and a retaining part is provided on the second sealing surface 21 so that the first sealing part 3 is located in the retaining part during the moving and assembling process.

[0128] The second piece 2 is moved to the sealing position along the second direction y, so that the first sealing part 3 is elastically deformed and at least partially separated from the retaining part, and is located between the first sealing surface 11 and the second sealing surface 21, and is located on one side of the retaining part along the second direction y.

[0129] The three steps described above are executed sequentially.

[0130] First, such as Figure 1As shown, before assembling the first piece 1 and the second piece 2, a first sealing part 3 is provided on the first sealing surface 11. The first sealing part 3 can change its shape, for example, from liquid to solid, or it can undergo elastic deformation.

[0131] Next, as Figure 3 As shown, the second piece 2 is moved along the first direction x parallel to the first sealing surface 11 and assembled with the first piece 1 in place, as follows. Figure 4 As shown, at this time, the first part 1 is in the initial position along the second direction y. During the movement and assembly process, the retaining part is used to keep the shape of the first sealing part 3 unchanged.

[0132] Then, as Figure 6 As shown, the second piece 2 is moved a preset distance along the second direction y to the sealing position, so that the first sealing part 3 is elastically deformed and at least partially separated from the retaining part, and is located between the first sealing surface 11 and the second sealing surface 21, and is located on one side of the retaining part along the second direction y. Thus, it plays a sealing role on both sides of the contact area between the first sealing surface 11 and the second sealing surface 21 along the first direction x.

[0133] This embodiment, by providing a retaining portion on the second sealing surface 21 of the second piece 2, ensures that the shape of the first sealing portion 3 remains unchanged during the process of the second piece 2 moving and assembling along the first direction x to the initial position. Even if the gap between the second sealing surface 21 and the first sealing surface 11 is small during the movement and assembly, it can prevent the movement of the second piece 2 from causing scratch damage to the first sealing portion 3, thus avoiding affecting the sealing effect. Moreover, after the second piece 2 is assembled in place, by translating the second piece 2 along the second direction y, the first sealing portion 3 can be elastically deformed and at least partially detached from the retaining portion, being squeezed into the gap between the first sealing surface 11 and the second sealing surface 21, forming a thin-layer structure with a certain width in the second direction y, thereby achieving a superior sealing effect.

[0134] In some embodiments, the sealing connection method disclosed herein further includes:

[0135] Before moving and assembling the second piece 2 along the first direction x, the second piece 2 is positioned relative to the first piece 1 along the second direction y and the third direction z, so that the first sealing part 3 is aligned with the retaining part, and the third direction z is perpendicular to the first direction x and the second direction y.

[0136] For example, positioning pins can be used to achieve positioning. A longer positioning pin is set on the first piece 1, and a positioning hole is set on the second piece 2. Before the second piece 2 is moved and assembled, the positioning hole can be made to cooperate with the positioning pin, and the second piece 2 can be moved along the first direction x under the guidance of the positioning pin.

[0137] Before the second piece 2 is moved and assembled, the second piece 2 is positioned along the second direction y. This can prevent the first sealing part 3 from being misaligned with the retaining part in the second direction y when the second piece 2 moves, so as to avoid scratching damage to the first sealing part 3. The second piece 2 is also positioned along the third direction z, which can ensure that there is a suitable gap between the first sealing surface 11 and the second sealing surface 21, and also prevent the gap between the first sealing part 3 and the retaining part from being too large.

[0138] In some embodiments, the sealing connection method further includes:

[0139] A limiting structure is provided to limit the movement of the second piece 2 along the second direction y, so that the second piece 2 stops when it reaches the sealing position.

[0140] This step can be performed before the second piece 2 is moved along the second direction y. For example, the limiting structure can be a tooling provided on one side of the first piece 1 along the second direction y, or the limiting structure can be a protrusion provided on the first piece 1, both of which can limit the position to which the second piece 2 moves along the second direction y.

[0141] This embodiment, by setting a limiting structure, can limit the second part 2 during the movement of the second part 2 along the second direction y, so that the second part 2 can be accurately moved to the sealing position. It can also make the width of the first sealing part 3 after being squeezed between the first sealing surface 11 and the second sealing surface 21 consistent, thus ensuring the consistency of sealing performance of different products.

[0142] In some embodiments, the sealing connection method further includes: before moving and assembling, disposing of the first sealing part 3 in the middle region of the first sealing surface 11 along the second direction y, and the retaining part being located in the middle region of the second sealing surface 21 along the second direction y.

[0143] In this embodiment, the first sealing part 3 is located in the middle region of the first sealing surface 11 along the second direction y. Compared with sealing at the edge, this improves the reliability of the sealing connection between the first piece 1 and the second piece 2. The first sealing part 3 is less susceptible to the influence of external moisture and dust on its sealing performance, and it helps maintain its sealing performance after long-term use. Moreover, it allows space for the second piece 2 to move to one side along the second direction y, so that the first sealing part 3 formed after compression is as close as possible to the middle region of the first sealing surface 11.

[0144] In some embodiments, the first sealing portion 3 extends along the first direction x, and the retaining portion includes a groove 24 extending along the first direction x, wherein the groove 24 passes through the second sealing surface 21 at least at one end near the first piece 1 during the moving assembly.

[0145] In this embodiment, the groove 24 first penetrates the second sealing surface 21 at least one end near the first piece 1 during the movement and assembly. When the second piece 2 moves along the first direction x to the first sealing part 3, the first sealing part 3 can enter the groove 24 through the end of the through groove 24, which can prevent the second piece 2 from causing scratch damage to the first sealing part 3.

[0146] In some embodiments, such as Figure 1 As shown, the first component 1 further has a third sealing surface 12, which is perpendicular to and adjacent to the first sealing surface 11, and is located at the first end of the first sealing portion 3; the second component 2 further has a fourth sealing surface 22, which is perpendicular to and adjacent to the second sealing surface 21, and is located at the first end of the groove 24; the sealing connection method further includes:

[0147] Before moving and assembling the second piece 2, a second sealing part 4 extending along the third direction z is provided on the third sealing surface 12;

[0148] In this process, after the second piece 2 moves to the sealing position, the second sealing part 4 is squeezed and deformed and located between the third sealing surface 12 and the fourth sealing surface 22, with the third direction z perpendicular to the first direction x and the second direction y.

[0149] This embodiment further improves the sealing effect by providing a second sealing part 3 and a second sealing part 4 on two adjacent sealing surfaces, for example, the second sealing part 3 and the second sealing part 4 can intersect at the adjacent point of the two sealing surfaces. Moreover, during the process of the second piece 2 moving along the first direction x to bring the fourth sealing surface 22 close to the third sealing surface 12, since the moving direction is perpendicular to the sealing surface, the second sealing part 4 will not be scratched or damaged during the movement of the second piece 2. When the fourth sealing surface 22 continues to press down after contacting the second sealing part 4, the second sealing part 4 deforms and is squeezed to form a thin layer structure with a certain width in the second direction y, which plays a sealing role.

[0150] In some embodiments, the first component 1 further has a fifth sealing surface 13, which is perpendicular to and adjacent to the first sealing surface 11, and is located at the second end of the first sealing portion 3; the second component 2 further has a sixth sealing surface 23, which is perpendicular to and adjacent to the second sealing surface 21, and is located at the second end of the groove 24; the sealing connection method further includes:

[0151] Before the second piece 2 is moved and assembled, a third sealing part 5 extending in the third direction z is provided on the fifth sealing surface 13. The third sealing part 5 and the second sealing part 4 extend in opposite directions relative to the first sealing part 3, so that after the second piece 2 is moved to the sealing position, the third sealing part 5 is squeezed and deformed and located between the fifth sealing surface 13 and the sixth sealing surface 23.

[0152] This embodiment provides a third sealing surface 12 and a fifth sealing surface 13 extending in opposite directions at both ends of the first sealing surface 11 along the first direction x, and provides a second sealing part 4 and a third sealing part 5 on these two oppositely extending sealing surfaces, so that the first piece 1 and the second piece 2 form a "Z"-shaped sealing interface, which can maximize the sealing effect. Moreover, during the process of the second piece 2 moving along the first direction x to bring the sixth sealing surface 23 close to the fifth sealing surface 13, since the moving direction is perpendicular to the sealing surface, the third sealing part 5 will not be scratched or damaged during the movement of the second piece 2. When the sixth sealing surface 23 continues to press down after contacting the third sealing part 5, the third sealing part 5 deforms and is squeezed to form a thin layer structure with a certain width in the second direction y, which plays a sealing role.

[0153] In some embodiments, such as Figure 6 As shown, the sealing connection method also includes:

[0154] After the second piece 2 is moved to the sealing position along the second direction y, the first piece 1 and the second piece 2 are connected by the fastener 6.

[0155] For example, the first piece 1 has a first hole 16, and the second piece 2 has a second hole 29. The first piece 1 and the second hole 29 are connected by a fastener 6 that passes through the first hole 16 and the second hole 29.

[0156] In this embodiment, after the first piece 1 and the second piece 2 are sealed together, they are then connected by fastener 6. Fastener 6 mainly bears the connection force of the first piece 1 and the second piece 2, thereby reducing the external force on the sealing part and preventing sealing failure due to the increase of the sealing gap, which is conducive to maintaining the sealing effect. Moreover, the pre-tightening force applied by fastener 6 can also provide pre-pressure to the sealing part, thereby obtaining a better sealing effect.

[0157] The embodiments provided in this disclosure have been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of this disclosure. The descriptions of the embodiments above are merely for the purpose of helping to understand the methods and core ideas of this disclosure. It should be noted that those skilled in the art can make various improvements and modifications to this disclosure without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this disclosure.

Claims

1. A sealing connection assembly, characterized in that, include: The first component (1) has a first sealing surface (11); The second component (2) has a second sealing surface (21) that mates with the first sealing surface (11), and a retaining portion is provided on the second sealing surface (21); and The first sealing part (3) is located in the gap between the first sealing surface (11) and the second sealing surface (21) at the sealing position, and is located on one side of the retaining part along the second direction (y).

2. The sealing connection assembly according to claim 1, characterized in that, The first sealing part (3) is configured to maintain its shape by the retaining part during the process of the second piece (2) moving and fitting together to the initial position of the first piece (1) in a first direction (x) parallel to the first sealing surface (11), and to undergo elastic deformation and at least partially detach from the retaining part during the process of the second piece (2) moving to the sealing position in a second direction (y), and to be in the gap between the first sealing surface (11) and the second sealing surface (21); Wherein, the second direction (y) is perpendicular to the first direction (x).

3. The sealing connection assembly according to claim 2, characterized in that, The first sealing portion (3) extends along a first direction (x), and the retaining portion includes a groove (24) extending along the first direction (x), the groove (24) penetrating the second sealing surface (21) at least at one end close to the first piece (1) during the moving assembly.

4. The sealing connection assembly according to claim 3, characterized in that, The first sealing part (3) penetrates the first sealing surface (11) along the first direction (x), and the groove (24) penetrates the second sealing surface (21) along the first direction (x).

5. The sealing connection assembly according to claim 3 or 4, characterized in that, The cross-section of the groove (24) is arc-shaped, and both sides of the groove (24) are smoothly connected to the second sealing surface (21) through the transition part (25).

6. The sealing connection assembly according to any one of claims 3 to 5, characterized in that, The first sealing part (3) is configured to be located in the middle region of the first sealing surface (11) along the second direction (y) at the initial position, and the groove (24) is located in the middle region of the second sealing surface (21) along the second direction (y).

7. The sealing connection assembly according to any one of claims 3 to 6, characterized in that, The first component (1) further has a third sealing surface (12), which is perpendicular to and adjacent to the first sealing surface (11), and the third sealing surface (12) is located at the first end of the first sealing portion (3); the second component (2) further has a fourth sealing surface (22), which is perpendicular to and adjacent to the second sealing surface (21), and the fourth sealing surface (22) is located at the first end of the groove (24); A second sealing portion (4) extending along a third direction (z) is provided between the third sealing surface (12) and the fourth sealing surface (22), and the third direction (z) is perpendicular to the first direction (x) and the second direction (y).

8. The sealing connection assembly according to claim 7, characterized in that, The first component (1) also has a fifth sealing surface (13), which is perpendicular to and adjacent to the first sealing surface (11), and the fifth sealing surface (13) is located at the second end of the first sealing portion (3); the second component (2) also has a sixth sealing surface (23), which is perpendicular to and adjacent to the second sealing surface (21), and the sixth sealing surface (23) is located at the second end of the groove (24); A third sealing portion (5) extending in a third direction (z) is provided between the fifth sealing surface (13) and the sixth sealing surface (23), and the third sealing portion (5) and the second sealing portion (4) extend in opposite directions relative to the first sealing portion (3).

9. The sealing connection assembly according to claim 8, characterized in that, The first sealing part (3), the second sealing part (4) and / or the third sealing part (5) are made of glue, foam or rubber.

10. The sealing connection assembly according to any one of claims 1 to 9, characterized in that, The first component (1) includes a mounting beam (14) and a first plate (15). The mounting beam (14) has an adjacent first side and a second side. The first plate (15) extending along the second direction (y) is vertically mounted on the first side. The area between the second side and the first plate (15) is the first sealing surface (11). The second side is the third sealing surface (12). The surface of the first plate (15) adjacent to the first sealing surface (11) is the fifth sealing surface (13). The second component (2) includes a second plate (26), a third plate (27) and a fourth plate (28). The third plate (27) and the fourth plate (28) are respectively connected to the two ends of the second plate (26) along the first direction (x) and extend in different directions. The second plate (26) has a second sealing surface (21) that mates with the first sealing surface (11). The third plate (27) has a fourth sealing surface (22) that mates with the third sealing surface (12). The fourth plate (28) has a sixth sealing surface (23) that mates with the fifth sealing surface (13). The second direction (y) is perpendicular to the first direction (x).

11. The sealing connection assembly according to any one of claims 1 to 10, characterized in that, The first piece (1) has a first hole (16) and the second piece (2) has a second hole (29). The first piece (1) and the second hole (29) are connected by a fastener (6) passing through the first hole (16) and the second hole (29).

12. A vehicle body structure, characterized in that, Includes the sealing connection assembly as described in any one of claims 1 to 11.

13. The vehicle body structure according to claim 12, characterized in that, The first component (1) includes a front floor assembly, and the second component (2) includes a front cabin assembly, with the passenger compartment located above the front floor assembly and the front cabin assembly.

14. A vehicle, characterized in that, Includes the vehicle body structure as described in claim 12 or 13.

15. A sealing connection method for implementing the sealing connection assembly according to any one of claims 1 to 11, the sealing connection method comprising: A first sealing part (3) is provided on the first sealing surface (11) of the first piece (1); The second piece (2) is moved and assembled to the initial position of the first piece (1) along a first direction (x) parallel to the first sealing surface (11). The second piece (2) has a second sealing surface (21) and a retaining part is provided on the second sealing surface (21) to keep the first sealing part (3) unchanged in shape during the moving and assembling process. The second part (2) is moved to the sealing position along the second direction (y), so that the first sealing part (3) is elastically deformed and at least partially separated from the retaining part, and is located between the first sealing surface (11) and the second sealing surface (21), and is located on one side of the retaining part along the second direction (y).

16. The sealing connection method according to claim 15, characterized in that, Also includes: Before moving the second piece (2) along the first direction (x) to assemble, the second piece (2) is positioned relative to the first piece (1) along the second direction (y) and the third direction (z) so that the first sealing part (3) is aligned with the retaining part, and the third direction (z) is perpendicular to the first direction (x) and the second direction (y).

17. The sealing connection method according to claim 15 or 16, characterized in that, Also includes: A limiting structure is provided to limit the second piece (2) during the movement of the second piece (2) along the second direction (y), so that the second piece (2) stops when it moves to the sealing position.

18. The sealing connection method according to any one of claims 15 to 17, characterized in that, Before the movement and assembly, the first sealing part (3) is disposed in the middle region of the first sealing surface (11) along the second direction (y), and the retaining part is located in the middle region of the second sealing surface (21) along the second direction (y).

19. The sealing connection method according to any one of claims 15 to 18, characterized in that, The first sealing portion (3) extends along a first direction (x), and the retaining portion includes a groove (24) extending along the first direction (x), the groove (24) penetrating the second sealing surface (21) at least at one end close to the first piece (1) during the moving assembly.

20. The sealing connection method according to claim 19, characterized in that, The first component (1) further has a third sealing surface (12), which is perpendicular to and adjacent to the first sealing surface (11), and the third sealing surface (12) is located at the first end of the first sealing portion (3); the second component (2) further has a fourth sealing surface (22), which is perpendicular to and adjacent to the second sealing surface (21), and the fourth sealing surface (22) is located at the first end of the groove (24); The sealing connection method further includes: Before moving and assembling the second piece (2), a second sealing part (4) extending in the third direction (z) is provided on the third sealing surface (12); Wherein, after the second piece (2) moves to the sealing position, the second sealing part (4) is squeezed and deformed between the third sealing surface (12) and the fourth sealing surface (22), and the third direction (z) is perpendicular to the first direction (x) and the second direction (y).

21. The sealing connection method according to claim 20, characterized in that, The first component (1) further has a fifth sealing surface (13), which is perpendicular to and adjacent to the first sealing surface (11), and the fifth sealing surface (13) is located at the second end of the first sealing portion (3); the second component (2) further has a sixth sealing surface (23), which is perpendicular to and adjacent to the second sealing surface (21), and the sixth sealing surface (23) is located at the second end of the groove (24); the sealing connection method further includes: Before the second piece (2) is moved and assembled, a third sealing part (5) extending in the third direction (z) is provided on the fifth sealing surface (13). The third sealing part (5) and the second sealing part (4) extend in opposite directions relative to the first sealing part (3) so that after the second piece (2) is moved to the sealing position, the third sealing part (5) is squeezed and deformed between the fifth sealing surface (13) and the sixth sealing surface (23).

22. The sealing connection method according to any one of claims 15 to 21, characterized in that, Also includes: After the second piece (2) is moved to the sealing position along the second direction (y), the first piece (1) and the second piece (2) are connected by fasteners (6).

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