Sealing structure and vehicle

Abstract

The application provides a sealing structure and a vehicle, the sealing structure is arranged in a cavity surrounded by at least two components, and comprises: a first sealing part, which is attached to at least part of one of the components, the first sealing part comprises a first supporting framework and a first sealing member, and the first sealing member is arranged on at least one side of the first supporting framework; and a second sealing part, one end of the second sealing part is a free end, the other end of the second sealing part comprises a fixed part, the fixed part is connected to one of the components or the fixed part is connected to at least part of the first sealing part, and the free end extends towards the other component. Through the technical scheme provided by the application, the technical problem of the sealing performance reduction between the sealing rubber block and the sheet metal and the poor sound insulation and noise reduction effect in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of sealing technology, and more specifically, to a sealing structure and a vehicle. Background Technology

[0002] Sealing blocks are generally made of rubber or resin and are used in various vehicles and buildings as wall-shaped partitions to provide sound insulation, noise reduction, and sealing. Existing sealing blocks require cutting off the interference parts to avoid interference from the mechanical movement of sheet metal. This results in a reduction in the sealing performance between the sealing block and the sheet metal after the cutting, and a poor sound insulation and noise reduction effect. Summary of the Invention

[0003] The main objective of this invention is to provide a sealing structure and vehicle to solve the problem that existing sealing blocks in the prior art require cutting off the interference portion to avoid interference from the mechanical movement of sheet metal. This results in a reduction in the sealing performance between the sealing block and the sheet metal after the cutting, and poor sound insulation and noise reduction effects.

[0004] To achieve the above objectives, according to one aspect of the present invention, a sealing structure is provided, disposed within a cavity enclosed by at least two components, comprising:

[0005] A first sealing portion, which is in contact with at least a portion of one of the components, the first sealing portion including a first support frame and a first sealing member, the first sealing member being disposed on at least one side of the first support frame;

[0006] The second sealing part has one end as a free end and includes a fixing part. The fixing part is connected to one of the components or is at least partially connected to the first sealing part. The free end extends toward the other component.

[0007] In some embodiments, the second sealing portion includes a second sealing element, which is an expansion sealing element that expands to fill at least a portion of the cavity.

[0008] In some embodiments, the at least two components are sheet metal parts.

[0009] In some embodiments, the cavity is formed by splicing the first component and the second component together, and the first sealing portion is in contact with at least a portion of the first component.

[0010] In some embodiments, the thickness of the second sealing portion is N times greater than the maximum gap of the cross section of the cavity along a preset direction, wherein the preset direction is the direction extending from the first component to the second component, and N = 1-20.

[0011] In some embodiments, the distance between the free end and the second component along the extending direction of the first component is 1mm-10mm.

[0012] In some embodiments, the second sealing portion includes a second support frame, and the second sealing member is disposed on at least one side of the second support frame.

[0013] In some embodiments, the elasticity of the second support frame is greater than that of the first support frame; or,

[0014] The elasticity of the second support frame is equal to that of the first support frame.

[0015] In some embodiments, the first support skeleton is one of PA nylon skeleton, PP skeleton, PBT skeleton and fiber reinforced material skeleton; and / or, the second support skeleton is one of PA nylon skeleton, PP skeleton, PBT skeleton and fiber reinforced material skeleton.

[0016] In some embodiments, at least a portion of the cross-section of the first seal along its extension direction is a non-uniform area cross-section; and / or,

[0017] At least a portion of the second seal has a cross-section with unequal area along its extension direction.

[0018] In some embodiments, the first seal is an extruded structure; or...

[0019] The first sealing element and the first supporting frame are injection molded as a single unit; or,

[0020] The second seal is an extruded structure; or,

[0021] The second seal is an injection-molded structure; or,

[0022] The second seal and the second support frame are injection molded as a single unit.

[0023] In some embodiments, the first support frame is provided, and the first seal is provided on one side of the first support frame; or,

[0024] Two first support frames are provided, and the first seal is disposed between the two first support frames; or,

[0025] There is one first support frame and at least two first seals, wherein the two first seals are respectively disposed on both sides of the first support frame; or,

[0026] The second support frame is provided at one location, and the second seal is provided on one side of the second support frame; or,

[0027] There is one second support frame and at least two second seals, with the two second seals respectively located on both sides of the second support frame; or,

[0028] There are two second support frames, and the second seal is disposed between the two second support frames.

[0029] In some embodiments, the sealing structure further includes a pressure-bonding structure disposed on the first seal and / or the second seal. The pressure-bonding structure includes a pressure-bonding column and a pressure-bonding cap connected to each other. At least a portion of the pressure-bonding column is disposed within the first seal and / or the second seal, and the pressure-bonding cap is disposed outside the first seal and / or the second seal.

[0030] In some embodiments, the sealing structure further includes a hot melt adhesive block disposed on at least one of the first support frame, the first seal, and the second seal.

[0031] In some embodiments, a baffle is provided on the first support frame, the first seal and the hot melt adhesive block are respectively disposed on both sides of the first support frame extending in a preset direction, and the baffle extends from the first support frame toward the side closer to the first seal.

[0032] In some embodiments, the sealing structure includes a snap-fit;

[0033] Wherein, the buckle passes through the first sealing part and connects to one of the components; and / or,

[0034] The buckle passes through the fixing part of the second seal and connects to one of the components.

[0035] In some embodiments, the buckle extends along a first direction, the buckle includes a buckle body and fins, the fins are formed by extending inward or outward from the side wall of the buckle body, one end of the fins is integrally formed with the buckle body, and the other end of the fins is spaced apart from the buckle body.

[0036] In some embodiments, along the extending direction of the snap-fit ​​body, the cross-section of the snap-fit ​​body includes at least one of a circle, annulus, or polygon; and / or,

[0037] The fins are spaced at least two apart along the extension direction of the buckle body; and / or,

[0038] At least two fins are provided at circumferential intervals along the buckle body, and a portion of the at least two fins may have the same or different shape as another portion of the at least two fins.

[0039] In some embodiments, the buckle body is provided with a snap-fit ​​portion, which includes a snap-fit ​​groove or a snap-fit ​​protrusion.

[0040] In some embodiments, the buckle further includes a positioning part;

[0041] Wherein, the positioning part is disposed at one end of the buckle body; and / or,

[0042] The radial distance of the positioning part is greater than the radial distance of the buckle body; and / or,

[0043] Along the extending direction of the buckle body, the cross-section of the positioning portion includes at least one of a circle, annulus, or polygon; and / or,

[0044] Along the extending direction of the buckle body, the cross-sectional dimension of one end of the positioning part is larger than the cross-sectional dimension of the other end of the positioning part.

[0045] In some embodiments, the at least two components include a first component, a second component, and a third component spaced apart, such that the cavity includes a first cavity and a second cavity spaced apart, the first sealing portion is disposed in the first cavity, the second sealing portion is disposed in the second cavity, the sealing structure includes a snap fastener, the snap fastener including a first snap-fit ​​section, a positioning section, and a second snap-fit ​​section connected in sequence, the diameter of the positioning section being larger than the diameters of the first snap-fit ​​section and the second snap-fit ​​section, the first snap-fit ​​section passing through the first sealing portion, and the second snap-fit ​​section passing through the second sealing portion.

[0046] According to another aspect of the invention, a vehicle is provided that includes the sealing structure described above.

[0047] By applying the technical solution of the present invention, the first sealing part is attached to at least a portion of one of the components to seal a portion of the cavity. Then, the second sealing part expands and fills at least a portion of the cavity. The first and second sealing parts work together to seal the cavity, improving the sealing effect. The first and second sealing parts extend in different directions, which is beneficial for sealing cavities with irregular cross-sections. Specifically, the smaller cross-sectional area is sealed by the first sealing part, while the larger cross-sectional area is sealed by both the first and second sealing parts. At the same time, the second sealing part does not interfere with the component (e.g., sheet metal) before expansion, eliminating the need for subsequent cutting of the interfering portion and thus ensuring the filling effect of the cavity. Attached Figure Description

[0048] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0049] Figure 1 A schematic diagram of a sealing structure provided according to an embodiment of the present invention is shown;

[0050] Figure 2 A schematic diagram of the structure of the first sealing part provided according to an embodiment of the present invention is shown;

[0051] Figure 3 A schematic diagram of the structure of the first sealing part provided according to an embodiment of the present invention is shown;

[0052] Figure 4 A schematic diagram of the structure of the first sealing part provided according to an embodiment of the present invention is shown;

[0053] Figure 5 A schematic diagram of the structure of a first sealing element with unequal area cross-section provided according to an embodiment of the present invention is shown;

[0054] Figure 6 A schematic diagram of the structure of a first sealing element with unequal area cross-section provided according to an embodiment of the present invention is shown;

[0055] Figure 7 A schematic diagram of the structure of a first sealing element with unequal area cross-section provided according to an embodiment of the present invention is shown;

[0056] Figure 8 A schematic diagram of the structure of a first sealing element with unequal area cross-section provided according to an embodiment of the present invention is shown;

[0057] Figure 9 A schematic diagram of the adhesive bonding structure provided according to an embodiment of the present invention is shown;

[0058] Figure 10 A schematic diagram of one of the first support frame, hot melt adhesive block and first sealant provided according to an embodiment of the present invention is shown;

[0059] Figure 11 A schematic diagram of the structure of the first support frame and the adhesive baffle provided according to an embodiment of the present invention is shown;

[0060] Figure 12 A second schematic diagram of the structure of the first support frame, hot melt adhesive block, and first sealant provided according to an embodiment of the present invention is shown.

[0061] Figure 13A third schematic diagram of the structure of the first support frame, hot melt adhesive block, and first sealant provided according to an embodiment of the present invention is shown.

[0062] Figure 14 A schematic diagram of a first embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0063] Figure 15 A schematic diagram of a second embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0064] Figure 16 A schematic diagram of a third embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0065] Figure 17 A schematic diagram of a fourth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0066] Figure 18 A schematic diagram of a fifth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0067] Figure 19 A schematic diagram of a sixth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0068] Figure 20 A schematic diagram of a seventh embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0069] Figure 21 A schematic diagram of an eighth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0070] Figure 22 A schematic diagram of a ninth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0071] Figure 23 A schematic diagram of a tenth embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown;

[0072] Figure 24 A schematic diagram of the eleventh embodiment of the snap-fit ​​structure provided according to an embodiment of the present invention is shown.

[0073] The above figures include the following reference numerals:

[0074] 1. First sealing part; 11. First support frame; 111. Adhesive baffle; 12. First sealing element;

[0075] 2. Second sealing element; 21. Free end; 22. Fixing part;

[0076] 3. Second supporting frame;

[0077] 4. Sealing structure; 41. Sealing column; 42. Sealing cap;

[0078] 5. Hot melt adhesive blocks;

[0079] 6. Buckle; 61. Buckle body; 62. Fin; 63. Positioning part; 64. First snap-fit ​​section; 65. Positioning section; 66. Second snap-fit ​​section; 67. Snap-fit ​​part;

[0080] 10. First component; 20. Second component; 30. Cavity; 40. Angle area. Detailed Implementation

[0081] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0082] like Figures 1 to 24 As shown, Embodiment 1 of the present invention provides a sealing structure disposed within a cavity 30 formed by at least two components. Specifically, it includes a first sealing part 1 and a second sealing part. The first sealing part 1 is in contact with at least a portion of one of the components. The first sealing part 1 includes a first support frame 11 and a first sealing element 12. The first sealing element 12 is disposed on at least one side of the first support frame 11. One end of the second sealing part is a free end 21, and the other end of the second sealing part is a fixed part 22. The fixed part 22 is connected to one of the components or the fixed part 22 is connected to at least a portion of the first sealing part 1. The free end 21 extends toward the other component.

[0083] The first sealing part 1 is in contact with at least a portion of one of the components, sealing a portion of the cavity 30. Then, the second sealing part expands and fills at least a portion of the cavity 30. The first sealing part 1 and the second sealing part 2 work together to seal the cavity 30, improving the sealing effect. The first sealing part 1 and the second sealing part 2 extend in different directions, which is beneficial for sealing cavities 30 with irregular cross-sections. For the smaller cross-sectional area, the first sealing part 1 is used for sealing, while for the larger cross-sectional area, the first sealing part 1 and the second sealing part work together for sealing. In addition, the support frame of the first sealing part 1 and the first sealing part 12 are separate or integrally formed structures, which facilitates independent pre-assembly. The second sealing part can be directly connected to the component or the first sealing part 1 through the fixing part 22, reducing the difficulty of manual operation.

[0084] The second sealing part includes a second sealing element 2, which is an expansion sealing element. After expansion, the second sealing element 2 fills at least a portion of the cavity 30. Since the second sealing element is an expansion sealing element, it is elastic and will not interfere with the component (e.g., sheet metal) before expansion, eliminating the need for subsequent cutting of the interfering portion.

[0085] Specifically, the at least two components are sheet metal parts. For example, the cavity 30 is formed by splicing the first component 10 and the second component 20 together; that is, the cavity 30 is formed by splicing the first sheet metal and the second sheet metal together. The first sealing part 1 is at least partially fitted with the first component 10; wherein, N times the thickness of the second sealing member 2 is not less than the maximum gap of the cross-section of the cavity 30 along a preset direction, the preset direction being the direction extending from the first component 10 to the second component 20, where N = 1-20. For example, the expansion characteristics of the second sealing member 2 allow it to accommodate cavities 30 with a maximum gap of up to 5 times its thickness, thereby improving sealing performance.

[0086] Furthermore, along the extending direction of the first component 10, the distance 'a' between the free end 21 and the second component 20 is 1mm-10mm. The free end 21 and the second component 20 maintain a preset gap of 1mm-10mm to prevent interference between the second seal 2 and the component before expansion.

[0087] The second seal 2 is an expansion-type sealing structure, which expands in volume under assembly compression or heating. If insufficient rigid support is lacking, it is prone to local flattening, bending, or uneven expansion, leading to seal failure. However, if the support rigidity is too high, interference with components can easily occur. In this embodiment, the second sealing part includes a second support frame 3, and the second seal 2 is disposed on at least one side of the second support frame 3. The elasticity of the second support frame 3 is greater than that of the first support frame 11. Thus, the second seal 2 can provide some support for the expanding material during expansion without interfering with components. In other words, the second support frame 3 ensures the controllability of the expansion direction of the second seal 2 during expansion, thereby improving the sealing stability of the expansion seal under complex working conditions. Furthermore, the second support frame 3 supports the second seal 2, preventing it from detaching during the heating and foaming process.

[0088] In another embodiment, the elasticity of the second support frame 3 is equal to the elasticity of the first support frame 11.

[0089] The elasticity can be adjusted by setting the shape of the first support frame 11 and / or the second support frame 3. For example, the first support frame 11 and / or the second support frame 3 are composed of two parallel strip structures (such as...). Figure 1The elasticity of the first support frame 11 and / or the second support frame 3 (e.g., I-shaped) formed by connecting ribs that are respectively connected to the two parallel strip structures is A, and the elasticity of A is greater than that of B.

[0090] For example, the first support skeleton 11 is one of a PA nylon skeleton, a PP skeleton, a PBT skeleton, and a fiber-reinforced material skeleton. The first support skeleton 11 can also be a skeleton made of a high-temperature resistant material. The second support skeleton 3 can also be a skeleton made of a high-temperature resistant material. For example, the first support skeleton 11 is a PA nylon skeleton, which utilizes the good rigidity, dimensional stability, heat resistance, and easy injection molding properties of PA nylon material, making it suitable for supporting the first sealing part 1 for static bonding and sealing. This significantly reduces material costs while ensuring structural strength.

[0091] For example, the second support skeleton 3 is one of PA nylon skeleton, PP skeleton, PBT skeleton and fiber reinforced material skeleton.

[0092] Specifically, such as Figures 2-4 As shown, there is one first support frame 11 and the first seal 12 is disposed on one side of the first support frame 11; or, there are two first support frames 11 and the first seal 12 is disposed between the two first support frames 11; or, there is one first support frame 11 and at least two first seals 12, wherein the two first seals 12 are respectively disposed on both sides of the first support frame 11; or, there is one second support frame 3 and the second seal 2 is disposed on one side of the second support frame 3; or, there are two second support frames 3 and the second seal 2 is disposed between the two second support frames 3.

[0093] This invention flexibly configures the spatial combination relationship between the first support frame 11 and the first seal 12, and the second support frame 3 and the second seal 2, and achieves guidance of the expansion direction and support of the seal through various forms such as single frame single-side sealing, double frame sandwich sealing, and single frame double-side sealing.

[0094] Furthermore, when the cross-section of cavity 30 is irregularly shaped, such as... Figures 4-8As shown, at least a portion of the first sealing member 12 has a cross-section with unequal area along its extension direction; at least a portion of the second sealing member 2 has a cross-section with unequal area along its extension direction. The cross-sectional shapes of the first sealing member 12 and the second sealing member 2 can be determined according to the dimensions of the irregular cross-sections. In the large gap region between the first component 10 and the second component 20, a thickened cross-section is used for the first sealing member 12 and / or the second sealing member 2 to enhance the sealing pressure, while a thin cross-section is used in the small gap region between the first component 10 and the second component 20. For example, the cross-sectional shape of the first sealing member 12 is stepped, or the cross-section of the first sealing member 12 includes a trapezoidal structure, or the cross-section of the first sealing member 12 includes a forked structure, or the tail of the first sealing member 12 is widened to form a fishtail-like structure. Figure 4 (to improve the sealing effect).

[0095] Furthermore, the first sealing element 12 is an extruded structure; or, the first sealing element 12 and the first support frame 11 are injection molded as a single unit; or, the second sealing element 2 is an extruded structure; or, the second sealing element 2 is an injection molded structure; or, the second sealing element 2 and the second support frame 3 are injection molded as a single unit. This invention achieves an optimal match between functional requirements and manufacturing feasibility by flexibly configuring extrusion molding or injection molding (including single-unit molding) processes for the first sealing element 12, the second sealing element 2, and their corresponding support frame: the first sealing element 12 uses extrusion molding to achieve long-distance continuous sealing and low-cost mass production; it and the first support frame 11 are injection molded as a single unit, eliminating adhesion failure and assembly errors, and improving structural reliability; the second sealing element 2 uses extrusion molding to ensure the uniformity and consistency of expansion performance, and it and the second support frame 3 are injection molded as a single unit, achieving precise control of the expansion direction. This process combination significantly improves the production efficiency, yield, and long-term service reliability of the sealing structure.

[0096] Furthermore, such as Figure 4 and Figure 9As shown, the sealing structure further includes a pressure-bonding structure 4, which is disposed on the first sealing member 12 and / or the second sealing member 2. The pressure-bonding structure 4 includes a pressure-bonding column 41 and a pressure-bonding cap 42 connected to each other. The diameter of the pressure-bonding column 41 is smaller than the diameter of the pressure-bonding cap 42. At least a portion of the pressure-bonding column 41 is disposed inside the first sealing member 12 and / or the second sealing member 2, and the pressure-bonding cap 42 is disposed outside the first sealing member 12 and / or the second sealing member 2 to limit the degree of expansion of the first sealing member 12 and / or the second sealing member 2 from the pressure-bonding column 41 to the pressure-bonding cap 42. By setting up a pressure structure 4 consisting of a pressure column 41 and a pressure cap 42, the deformation of the first seal 12 and / or when it expands due to heat or moisture absorption is limited to a preset range: the pressure column 41 is embedded inside the seal to provide anchoring, and the pressure cap 42 is externally positioned to limit and stop, which not only avoids tearing of the seal, deformation of the component or failure of the seal due to excessive expansion, but also ensures that the expansion amount is effectively used to fill the cavity 30, thereby improving the reliability of the seal.

[0097] Furthermore, such as Figures 10 to 13 As shown, the sealing structure also includes a hot melt adhesive block 5, which is disposed on at least one of the first support frame 11, the first sealing element 12, and the second sealing element 2. The following description uses the hot melt adhesive block 5 disposed on the first support frame 11 as an example. An angled region 40 is formed at the joint of the two components, and the hot melt adhesive block 5 is used to fill this angled region 40. By pre-setting the hot melt adhesive block 5 on the first support frame 11, the angled region 40 formed by the component joint is accurately positioned and actively filled, effectively solving the sealing failure problem caused by the rigid structure of traditional sealing elements failing to fit sharp angles and corners. The hot melt adhesive block 5 melts and flows after assembly or heating, automatically filling the irregular gaps in the angled region 40, and forms a continuous sealing layer after solidification. For example, the melted hot melt adhesive block 5 flows onto the first sealing element 12 to enhance the sealing effect.

[0098] Furthermore, such as Figure 11 As shown, a baffle plate 111 is provided on the first support frame 11. The first seal 12 and the hot melt adhesive block 5 are respectively disposed on both sides of the first support frame 11 extending along a predetermined direction. The baffle plate 111 extends from the first support frame 11 toward the side closer to the hot melt adhesive block 5. The baffle plate 111 extends from the frame toward the side of the first seal 12, constraining the flow path of the first seal 12 (e.g., an expansion seal) and preventing it from overflowing to the side where the hot melt adhesive block 5 is located.

[0099] In some embodiments, such as Figure 12As shown, the first sealing element 12 is disposed on the first support frame 11, and the hot melt adhesive block 5 is L-shaped, with its two ends contacting different positions of the first sealing element 12. That is, the hot melt adhesive block 5 is in direct contact with the first sealing element 12.

[0100] In other embodiments, such as Figure 13 As shown, the first support frame 11 has a groove, the first sealing member 12 is disposed in the groove, and the hot melt adhesive block 5 is disposed on one side of the first sealing member 12 and abuts against the first support frame 11.

[0101] The sealing structure includes a snap fastener 6; wherein the snap fastener 6 passes through the first sealing member 12 or the first support frame 11 and is connected to one of the components; and / or, the snap fastener 6 passes through the fixing part 22 of the second sealing member and is connected to the other component. The snap fastener 6 can pass through the first sealing member 12 or the first support frame 11 and be anchored to the first component 10, or pass through the fixing part 22 of the second sealing member 2 and be anchored to the second component 20, thereby achieving precise positioning and pre-tightening force application of the sealing structure.

[0102] The latch 6 extends along a first direction and includes a latch body 61 and fins 62. The fins 62 extend inward or outward from the side wall of the latch body 61. One end of the fin 62 is integrally formed with the latch body 61, and the other end of the fin 62 is spaced apart from the latch body 61. Specifically, the latch body 61 serves as a support for the fins 62. During the installation of the sealing structure, the latch body 61 passes through the first sealing part 1 and connects to one of the components. The fins 62 prevent the latch 6 from falling off after installation, thereby improving the installation reliability of the latch 6.

[0103] Furthermore, along the extending direction of the snap-fit ​​body 61, the cross-section of the snap-fit ​​body 61 includes at least one of a circle, annulus, or polygon; here, the cross-section of the snap-fit ​​body 61 can be a single circle, annulus, or polygon, or a combination of at least two of a circle, annulus, or polygon. For example, setting the cross-section of the snap-fit ​​body 61 to a triangle can minimize the swaying of the snap-fit ​​body 61 under vibration, thereby improving the vibration resistance of the sealing structure. Figure 15 As shown, the cross-section of the buckle body 61 includes a circle. Figure 16 and Figure 17 As shown, the cross-section of the buckle body 61 includes a rectangle, such as... Figure 19 As shown, the cross-section of the buckle body 61 includes an "I" shape.

[0104] Specifically, at least two fins 62 are spaced apart along the extending direction of the buckle body 61; and / or, at least two fins 62 are spaced apart circumferentially along the buckle body 61. The multiple fins 62 are provided to improve the anti-detachment performance of the buckle 6.

[0105] Furthermore, a portion of at least two of the fins 62 may have the same or different shape as another portion of the at least two fins 62. Here, a portion of the at least two fins 62 may be arc-shaped, and the other portion may be "L"-shaped, which serves to prevent the latch 6 from being mistakenly engaged. For example, two fins 62 are provided and arranged circumferentially along the latch body 61, and these two fins 62 have different shapes.

[0106] Furthermore, the buckle 6 also includes a positioning part 63; wherein, the positioning part 63 is disposed at one end of the buckle body 61; the radial distance of the positioning part 63 is greater than the radial distance of the buckle body 61. Here, the positioning part 63 can be configured as a positioning plate, which serves as a limiting position when the first sealing part 1 is installed onto one of the components by the buckle 6.

[0107] Furthermore, along the extending direction of the latch body 61, the cross-section of the positioning portion 63 includes at least one of a circle, annulus, or polygon. Here, the cross-section of the positioning portion 63 can be a single circle, annulus, or polygon, or a combination of at least two of a circle, annulus, or polygon. For example, as... Figure 18 As shown, the cross-section of the positioning part 63 is circular; as Figure 19 As shown, the cross-section of the positioning part 63 is "I" shaped.

[0108] like Figure 20 As shown, along the extending direction of the buckle body 61, the cross-sectional dimension of one end of the positioning part 63 is larger than the cross-sectional dimension of the other end of the positioning part 63, which can play a foolproof role.

[0109] In other embodiments, such as Figure 21 As shown, the at least two components include a first component, a second component, and a third component spaced apart, such that the cavity 30 includes a first cavity and a second cavity spaced apart. The first sealing part 1 is disposed in the first cavity, and the second sealing part is disposed in the second cavity. The sealing structure includes a snap fastener 6, which includes a first engaging section 64, a positioning section 65, and a second engaging section 66 connected in sequence. The diameter of the positioning section 65 is larger than the diameters of the first engaging section 64 and the second engaging section 66. The first engaging section 64 passes through the first sealing part, and the second engaging section 66 passes through the second sealing part. In this way, the sealing structure in both cavities can be fixed simultaneously by the snap fastener with two engaging sections.

[0110] In other embodiments, such as Figure 22 As shown, the at least two components include a first component, a second component, and a third component spaced apart, so that the cavity 30 includes a first cavity and a second cavity spaced apart. The first sealing part 1 is disposed in the first cavity, and the second sealing part is disposed in the second cavity. The sealing structure includes a buckle 6, which includes a first snap-fit ​​section 64 and a second snap-fit ​​section 66 connected in sequence. In this way, the sealing structure in the two cavities can be fixed simultaneously by the buckle with two snap-fit ​​sections.

[0111] In some embodiments, such as Figure 23 and Figure 24 As shown, the buckle body 61 is provided with a snap-fit ​​portion 67, which includes a snap-fit ​​groove or a snap-fit ​​protrusion. This snap-fit ​​portion 67 can be used to snap-fit ​​with at least one of the first component 10 and the second component 20, thereby improving the reliability of the connection between the buckle 6 and the sheet metal.

[0112] In other embodiments, the first seal 12 is an adhesive seal, which is laid on and bonded to the surface of the first component 10; or, the adhesive seal is laid on and bonded to the surface of the first support frame 11. By laying an adhesive seal (e.g., sealing tape), the cavity 30 can be effectively sealed, and in this embodiment, there is no need to provide the snap-fit ​​structure 6.

[0113] The present invention also provides a vehicle including the above-described sealing structure, for example, the sealing structure being disposed in a cavity 30 formed by the A-pillar sheet metal and the reinforcing sheet metal.

[0114] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0115] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0116] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" are usually 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. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0117] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0118] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0119] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sealing structure disposed within a cavity (30) formed by at least two components, characterized in that, include: A first sealing portion (1) is in contact with at least a portion of one of the components. The first sealing portion (1) includes a first support frame (11) and a first sealing element (12), the first sealing element (12) being disposed on at least one side of the first support frame (11). The second sealing part has a free end (21) at one end and includes a fixing part (22). The fixing part (22) is connected to one of the components or the fixing part (22) is at least partially connected to the first sealing part (1). The free end (21) extends toward the other component.

2. The sealing structure according to claim 1, characterized in that, The second sealing part includes a second sealing element (2), which is an expansion sealing element, and the second sealing element (2) fills at least a portion of the cavity (30).

3. The sealing structure according to claim 1, characterized in that, At least two of the components are sheet metal parts.

4. The sealing structure according to claim 1, characterized in that, The cavity (30) is formed by splicing together a first component (10) and a second component (20), and the first sealing part (1) is at least partially attached to the first component (10).

5. The sealing structure according to claim 4, characterized in that, The thickness of the second sealing part is N times greater than the maximum gap of the cross section of the cavity (30) along a preset direction, where the preset direction is the direction extending from the first component (10) to the second component (20), and N = 1-20.

6. The sealing structure according to claim 5, characterized in that, Along the extending direction of the first component (10), the distance between the free end (21) and the second component (20) is 1mm-10mm.

7. The sealing structure according to claim 2, characterized in that, The second sealing part includes a second support frame (3), and the second sealing element (2) is disposed on at least one side of the second support frame (3).

8. The sealing structure according to claim 7, characterized in that, The elasticity of the second support frame (3) is greater than that of the first support frame (11); or, The elasticity of the second support frame (3) is equal to the elasticity of the first support frame (11).

9. The sealing structure according to claim 7, characterized in that, The first support skeleton (11) is one of PA nylon skeleton, PP skeleton, PBT skeleton and fiber reinforced material skeleton; and / or, the second support skeleton (3) is one of PA nylon skeleton, PP skeleton, PBT skeleton and fiber reinforced material skeleton.

10. The sealing structure according to claim 2, characterized in that, At least a portion of the first seal (12) has a cross-section with unequal area along its extension direction; and / or, At least a portion of the second seal (2) has a cross-section with unequal area along its extension direction.

11. The sealing structure according to claim 7, characterized in that, The first seal (12) is an extruded structure; or, The first sealing element (12) and the first supporting frame (11) are injection molded as a single unit; or, The second seal (2) is an extruded structure; or, The second seal (2) is an injection-molded structure; or, The second seal (2) and the second support frame (3) are injection molded integral structures.

12. The sealing structure according to claim 7, characterized in that, The first support frame (11) is provided with one, and the first sealing member (12) is provided on one side of the first support frame (11); or, Two first support frames (11) are provided, and the first seal (12) is provided between the two first support frames (11); or, There is one first support frame (11) and at least two first seals (12), wherein the two first seals (12) are respectively disposed on both sides of the first support frame (11); or, The second support frame (3) is provided with one, and the second seal (2) is provided on one side of the second support frame (3); or, There is one second support frame (3), and at least two second seals (2), wherein the two second seals (2) are respectively disposed on both sides of the second support frame (3); or, There are two second support frames (3), and the second seal (2) is disposed between the two second support frames (3).

13. The sealing structure according to any one of claims 2, 7-10, characterized in that, The sealing structure further includes a pressure-bonding structure (4), which is disposed on the first sealing member (12) and / or the second sealing member (2). The pressure-bonding structure (4) includes a pressure-bonding column (41) and a pressure-bonding cap (42) connected to each other. At least a portion of the pressure-bonding column (41) is disposed inside the first sealing member (12) and / or the second sealing member (2), and the pressure-bonding cap (42) is disposed outside the first sealing member (12) and / or the second sealing member (2).

14. The sealing structure according to claim 2, characterized in that, The sealing structure further includes a hot melt adhesive block (5), which is disposed on at least one of the first support frame (11), the first seal (12) and the second seal (2).

15. The sealing structure according to claim 14, characterized in that, The first support frame (11) is provided with a glue-blocking platform (111), the first sealing member (12) and the hot melt adhesive block (5) are respectively provided on both sides of the first support frame (11) extending in a preset direction, and the glue-blocking platform (111) extends from the first support frame (11) toward the side closer to the first sealing member (12).

16. The sealing structure according to claims 2, 5-10, characterized in that, The sealing structure includes a snap-fit ​​(6); Wherein, the buckle (6) passes through the first sealing part (1) and is connected to one of the components; and / or, The buckle (6) passes through the fixing part (22) of the second sealing part and is connected to one of the components.

17. The sealing structure according to claim 16, characterized in that, The buckle (6) extends along a first direction. The buckle (6) includes a buckle body (61) and a fin (62). The fin (62) extends inward or outward from the side wall of the buckle body (61). One end of the fin (62) is integrally formed with the buckle body (61), and the other end of the fin (62) is spaced apart from the buckle body (61).

18. The sealing structure according to claim 17, characterized in that, Along the extending direction of the buckle body (61), the cross-section of the buckle body (61) includes at least one of a circular, annular, or polygonal shape; and / or, The fins (62) are provided at least two at intervals along the extending direction of the snap-fit ​​body (61); and / or, At least two fins (62) are provided at circumferential intervals along the snap-fit ​​body (61), and a portion of at least two fins (62) has the same or different shape as another portion of at least two fins (62); and / or, The buckle body (61) is provided with a snap-fit ​​part (67), which includes a snap-fit ​​groove or a snap-fit ​​protrusion.

19. The sealing structure according to claim 18, characterized in that, The buckle (6) also includes a positioning part (63); The positioning part (63) is disposed at one end of the buckle body (61); and / or, The radial distance of the positioning part (63) is greater than the radial distance of the buckle body (61); and / or, Along the extending direction of the buckle body (61), the cross-section of the positioning part (63) includes at least one of a circle, annulus, or polygon; and / or, Along the extending direction of the buckle body (61), the cross-sectional dimension of one end of the positioning part (63) is larger than the cross-sectional dimension of the other end of the positioning part (63).

20. The sealing structure according to claims 2, 5-10, characterized in that, The at least two components include a first component, a second component, and a third component spaced apart, such that the cavity (30) includes a first cavity and a second cavity spaced apart. The first sealing part (1) is disposed in the first cavity, and the second sealing part is disposed in the second cavity. The sealing structure includes a snap fastener (6). The snap fastener (6) includes a first snap-fit ​​section (64), a positioning section (65), and a second snap-fit ​​section (66) connected in sequence. The diameter of the positioning section (65) is larger than the diameters of the first snap-fit ​​section (64) and the second snap-fit ​​section (66). The first snap-fit ​​section (64) passes through the first sealing part, and the second snap-fit ​​section (66) passes through the second sealing part.

21. A vehicle, characterized in that, The sealing structure includes any one of claims 1-20.

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