A dual seal, a vehicle door assembly, and a vehicle

Abstract

This application relates to the field of automotive component technology, specifically to a double-layer seal, a door assembly, and a vehicle. The double-layer seal includes a sealing body, a first annular sealing protrusion, and a second annular sealing protrusion. The sealing body includes a first mounting sidewall and a second mounting sidewall. The first and second annular sealing protrusions are fixedly mounted on the first mounting sidewall of the sealing body. The second annular sealing protrusion is sleeved outside the first annular sealing protrusion. The protrusion height h1 of the first annular sealing protrusion on the sealing body is less than the protrusion height h2 of the second annular sealing protrusion on the sealing body. In this application, the double-layer seal, by providing the first and second annular sealing protrusions, forms a double-layer sealing structure. This structure can more effectively prevent dust and rainwater from entering the interior of the door, thereby protecting the door and its internal electronic components from environmental damage.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and more specifically, to a double-layer seal, a door assembly, and a vehicle. Background Technology

[0002] In the automotive industry, concealed door handles have gained widespread application in new energy vehicles due to their advantages such as a strong sense of technology, high integration, low wind resistance, and good appearance. Concealed door handles are mainly divided into three types: push-type, rotary-type, and semi-concealed. However, in rainy or dusty weather, raindrops fall onto the door sheet metal and then flow into the interior of the door handle structure through the gaps. Current technology incorporates drainage holes at the bottom of the door handle to allow raindrops to drain out. However, if the seal between the door handle gasket and the door sheet metal is insufficient, raindrops will seep out, significantly reducing the effectiveness of the drainage holes. This seeping raindrops can corrode the door sheet metal, affecting the operation of other internal components and shortening the vehicle's lifespan. Furthermore, at high speeds, the increased air pressure, once exceeding the door seal resistance, generates wind noise. This noise increases with speed, greatly impacting passenger comfort. Considering the two points above, the sealing performance of concealed exterior door handles is particularly important. With the rapid development of new energy vehicles, the existing single-layer sealing structures on the market cannot meet the growing sealing requirements of the consumer market. Utility Model Content

[0003] The purpose of this application is to provide a double-layer seal, a door assembly, and a vehicle, which can more effectively prevent dust and rainwater from entering the interior of the door.

[0004] To achieve the above objectives, in a first aspect, this utility model provides a double-layer sealing element, comprising:

[0005] A sealing body, wherein the sealing body is an annular structure, and the sealing body includes a first mounting sidewall and a second mounting sidewall disposed opposite to each other;

[0006] A first annular sealing protrusion and a second annular sealing protrusion are fixedly installed on the first mounting side wall of the sealing body. The second annular sealing protrusion is sleeved outside the first annular sealing protrusion. The first annular sealing protrusion and the second annular sealing protrusion are spaced apart. The protrusion height h1 of the first annular sealing protrusion on the sealing body is less than the protrusion height h2 of the second annular sealing protrusion on the sealing body.

[0007] In an optional embodiment, a stepped sealing protrusion is further included, which is mounted on the second mounting sidewall and extends out of the second mounting sidewall in a direction parallel to the second mounting sidewall.

[0008] In an optional embodiment, the second annular sealing protrusion is inclinedly disposed on the first mounting sidewall.

[0009] In an optional embodiment, the second annular sealing protrusion is inclined away from the first annular sealing protrusion.

[0010] In an optional embodiment, the first annular sealing protrusion is perpendicular to the first mounting sidewall.

[0011] In an optional embodiment, a mounting protrusion is further included, which is mounted on the second mounting sidewall, and the sidewall of the mounting protrusion and the second mounting sidewall form a mounting groove.

[0012] Secondly, this utility model provides a car door assembly, comprising:

[0013] The first sheet metal part is used to provide the mounting base;

[0014] The second sheet metal part is mounted on the first sheet metal part, and the second sheet metal part has a door handle mounting position;

[0015] As described in any of the foregoing embodiments, the first annular sealing protrusion and the second annular sealing protrusion of the double-layer sealing member abut against the door handle mounting position of the second sheet metal part.

[0016] A rigid seal is mounted on the first sheet metal part, and the sealing body of the double-layer seal is mounted on the rigid seal. The double-layer seal is located between the rigid seal and the second sheet metal part.

[0017] In an optional embodiment, the rigid seal is provided with a snap-fit ​​post for connecting the first sheet metal part, and the number of snap-fit ​​posts is at least one.

[0018] In an optional embodiment, a positioning post is provided on the side wall of the hard seal near the double-layer seal, and a mating through hole is provided on the sealing body of the double-layer seal. The positioning post passes through the mating through hole of the sealing body and abuts against the second sheet metal part.

[0019] Thirdly, this utility model provides a vehicle, comprising:

[0020] A vehicle frame having door mounting positions;

[0021] The door assembly as described in any of the foregoing embodiments is mounted on the door mounting position of the vehicle frame.

[0022] In this application, the double-layer seal forms a double-layer sealing structure by providing a first annular sealing protrusion and a second annular sealing protrusion. This structure can more effectively prevent dust and rainwater from entering the interior of the vehicle door, thereby protecting the vehicle door and its internal electronic components from environmental damage.

[0023] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure from one perspective of one embodiment of a door assembly provided in this application;

[0026] Figure 2 A two-view structural schematic diagram of one embodiment of a door assembly provided in this application;

[0027] Figure 3 for Figure 2 Sectional view along the middle AA direction;

[0028] Figure 4 for Figure 2 Sectional view along the BB direction;

[0029] Figure 5 This is a three-view structural schematic diagram of one embodiment of a double-layer seal provided in this application.

[0030] icon:

[0031] 100 - Sealing body; 110 - First mounting sidewall; 120 - Second mounting sidewall; 130 - First annular sealing protrusion; 140 - Second annular sealing protrusion; 150 - Stepped sealing protrusion; 160 - Mounting protrusion; 170 - Mounting groove; 180 - Mating through hole;

[0032] 200 - Second sheet metal part; 210 - Door handle mounting position;

[0033] 300 - Hard seal; 320 - Positioning pin. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Embodiments of this application provide a double-layer seal, a door assembly, and a vehicle. The vehicle includes a door assembly and a frame, with a door mounting position provided on the frame, providing a mounting base for the door assembly. Exemplarily, the frame can be the vehicle's structural frame, or it can include wheels and other structures, such as a powertrain, control system, and braking system.

[0038] The door assembly is mounted on the door mounting position on the vehicle frame.

[0039] The door assembly provided in the embodiments of this application includes a first sheet metal part, a second sheet metal part 200, a hard seal 300, and a double-layer seal.

[0040] The first sheet metal part is installed on the door mounting position on the vehicle frame, and the first sheet metal part is used to provide a mounting base for the second sheet metal part 200.

[0041] The second sheet metal part 200 is installed on the first sheet metal part; such as Figure 1 and Figure 2As shown, the second sheet metal part 200 has a door handle mounting position 210. The door handle mounting position 210 is used to install the door handle and its associated structures, such as a double-layer seal for sealing the door handle structure. The double-layer seal is used to seal the door handle and the second sheet metal part 200. The double-layer seal can effectively prevent the intrusion of dust and rainwater, reduce the damage to the electronic components inside the door caused by moisture or dust, and thus extend the service life of the door and its internal components.

[0042] like Figures 3 to 5 As shown, the double-layer seal provided in the embodiments of this application has a double-sealing structure, which is a first annular sealing protrusion 130 and a second annular sealing protrusion 140.

[0043] like Figure 3 and Figure 4 As shown, the first annular sealing protrusion 130 and the second annular sealing protrusion 140 of the double-layer seal abut against the door handle mounting position 210 of the second sheet metal part 200.

[0044] The first annular sealing protrusion 130 of the first-layer sealing structure prevents most dust and rainwater from entering the handle, extending the lifespan of the door and its internal electronic components. The second annular sealing protrusion 140 of the second-layer sealing structure further prevents dust and rainwater from entering, providing a cleaner and drier working environment for the door interior. This helps maintain the stable performance of internal door components and reduces malfunctions caused by environmental factors.

[0045] The use of double-layer seals helps reduce wind noise and rattles. At high speeds, poor door seals can cause turbulence and eddies as air flows through the gaps in the door handles, generating noise. Double-layer seals improve sealing performance, reducing this noise and enhancing ride comfort.

[0046] like Figure 3 and Figure 4 As shown, the rigid seal 300 is mounted on the first sheet metal part. The double-layer seal provided in the embodiment of this application also includes a sealing body 100, which is used to provide a mounting base for the first annular sealing protrusion 130 and the second annular sealing protrusion 140.

[0047] The sealing body 100 of the double-layer seal is mounted on the rigid seal 300, thereby fixing the positions of the first annular sealing protrusion 130 and the second annular sealing protrusion 140 relative to the rigid seal 300 and the first sheet metal part, such as... Figure 3 and Figure 4 As shown, the double-layer seal is located between the hard seal 300 and the second sheet metal part 200.

[0048] The sealing body 100 of the double-layer seal is mounted on the rigid seal 300, which in turn is mounted on the first sheet metal part. This structure fixes the position of the double-layer seal relative to the rigid seal 300 and the first sheet metal part, ensuring the stability and reliability of the sealing performance.

[0049] like Figure 5 As shown, in one embodiment, the sealing body 100 has an annular structure, such as... Figure 3 and Figure 4 As shown, the sealing body 100 includes a first mounting sidewall 110 and a second mounting sidewall 120 disposed opposite to each other.

[0050] like Figures 3 to 5 As shown, the first annular sealing protrusion 130 and the second annular sealing protrusion 140 are fixedly installed on the first mounting side wall 110 of the sealing body 100. The fixing method is, for example, welding, gluing, snap-fitting or integral molding.

[0051] like Figure 3 and Figure 4 As shown, the second annular sealing protrusion 140 is sleeved outside the first annular sealing protrusion 130, and the first annular sealing protrusion 130 and the second annular sealing protrusion 140 are spaced apart; as Figure 3 As shown, the protrusion height h1 of the first annular sealing protrusion 130 on the sealing body 100 is less than the protrusion height h2 of the second annular sealing protrusion 140 on the sealing body 100, so that the adhesion force between the second annular sealing protrusion 140 and the second sheet metal part 200 is greater than the adhesion force between the first annular sealing protrusion 130 and the second sheet metal part 200.

[0052] Because the second annular sealing protrusion 140 has a greater protrusion height than the first annular sealing protrusion 130, it will exert a greater contact force with the second sheet metal part 200 in actual use. This increased contact force helps to further reduce the sealing gap and improve the sealing effect.

[0053] It should be understood that, Figure 3 The second annular sealing protrusion 140 extends into the second sheet metal part 200 to fully represent the protrusion height h2 of the second annular sealing protrusion 140 on the sealing body 100. In actual use, the second annular sealing ring will be deformed by the reaction force of the second sheet metal part 200. Figure 4 The shape of the second annular sealing protrusion 140.

[0054] In this application, a double-layer sealing structure is formed by providing two annular sealing protrusions (a first annular sealing protrusion 130 and a second annular sealing protrusion 140) on the sealing body 100. This structure can more effectively prevent external substances such as dust and moisture from entering the sealing area, thereby improving the overall sealing performance.

[0055] The first annular sealing protrusion 130 and the second annular sealing protrusion 140 are spaced apart, and the protrusion height of the second annular sealing protrusion 140 is greater than that of the first annular sealing protrusion 130. This staged sealing design allows the second annular sealing protrusion 140 to provide a stronger sealing effect on top of the initial sealing (provided by the first annular sealing protrusion 130), especially when facing greater pressure or harsher environmental conditions.

[0056] like Figure 3 and Figure 4 As shown, in one embodiment, the double-layer seal further includes a stepped sealing protrusion 150, which is mounted on the second mounting sidewall 120 and extends out of the second mounting sidewall 120 in a direction parallel to the second mounting sidewall 120; by the stepped sealing protrusion 150 abutting against the second sheet metal part 200, rainwater and dust can be blocked from entering the door to a certain extent.

[0057] like Figure 3 As shown, the stepped sealing protrusion 150 serves a positioning and limiting function during installation. When the double-layer seal is installed onto the second sheet metal part 200, the stepped sealing protrusion 150 abuts against the second sheet metal part 200, ensuring that the double-layer seal is correctly and securely installed in the predetermined position, avoiding misalignment or displacement during installation. The positioning and limiting function of the stepped sealing protrusion 150 simplifies the installation process and improves installation accuracy and efficiency. Installers can more easily align and install the double-layer seal onto the second sheet metal part 200, reducing installation time and costs.

[0058] For example, the stepped sealing protrusion 150 is fixedly installed on the second mounting sidewall 120 by means of welding, gluing or integral molding.

[0059] For example, in one embodiment, the stepped sealing protrusion 150 is an annular structure. However, in another embodiment, the stepped sealing protrusion 150 is a plurality of separately arranged arc-shaped block structures, which are distributed along an arc-shaped trajectory.

[0060] like Figure 3 As shown, in one embodiment, the second annular sealing protrusion 140 is inclinedly disposed on the first mounting sidewall 110, which can increase the contact area and contact pressure between the sealing protrusion and the second sheet metal part 200, so that the sealing protrusion can better fit the mating surface when subjected to pressure, thereby forming a tighter seal and effectively blocking the intrusion of external substances such as dust and moisture.

[0061] The inclined second annular sealing protrusion 140 can better adapt to the mating surfaces of the second sheet metal part 200 with different shapes and sizes. Even if there are slight deviations or unevenness in the mating surfaces, the inclined sealing protrusion can adapt to these changes through a certain deformation, maintaining stable sealing performance.

[0062] The inclined second annular sealing protrusion 140 helps improve the structural stability of the double-layer seal. When subjected to external forces or vibrations, the inclined second annular sealing protrusion 140 can better maintain its position and shape through bending deformation, thereby maintaining stable sealing performance.

[0063] During vehicle operation, the door may experience slight displacement due to vibration or impact. When the inclined second annular sealing protrusion 140 moves relative to the contact surface, its inclination angle can be converted into a sliding component along the contact surface, reducing the peeling force perpendicular to the contact surface and thus reducing the risk of seal failure.

[0064] The inclined design causes the second layer of protrusions to elastically deform under pressure, with the deformation direction forming an angle with the pressure direction, thereby dispersing localized stress. This structure can automatically compensate for sealing gaps caused by manufacturing errors or long-term use, ensuring long-term sealing reliability.

[0065] If dust or other debris accumulates between the first annular sealing protrusion 130 and the second annular sealing protrusion 140, the debris, affected by vehicle vibrations, will push against the first annular sealing protrusion 130 and the second annular sealing protrusion 140, leading to seal failure. To prevent debris from accumulating between the first annular sealing protrusion 130 and the second annular sealing protrusion 140, such as... Figure 3 As shown, in one embodiment, the second annular sealing protrusion 140 is inclined away from the first annular sealing protrusion 130. The second annular sealing protrusion 140 guides dust away from the first annular sealing protrusion 130, thereby preventing dust from accumulating between the second annular sealing protrusion 140 and the first annular sealing protrusion 130.

[0066] like Figure 3 As shown, in one embodiment, the first annular sealing protrusion 130 is perpendicular to the first mounting sidewall 110.

[0067] The first annular sealing protrusion 130 is perpendicular to the first mounting sidewall 110 and can directly and stably abut against the second sheet metal part 200. This design ensures that the sealing protrusion forms reliable contact in the vertical direction, thereby effectively preventing the intrusion of external substances such as dust and moisture.

[0068] Compared to the first annular sealing protrusion 130 and the second annular sealing protrusion 140, which are both inclined, the first annular sealing protrusion 130 is perpendicular to the first mounting sidewall 110, which increases its resistance to deformation and avoids local pressure concentration caused by excessive deformation, thus preventing seal failure. This uniform pressure distribution helps to extend the service life of the seal.

[0069] Because the contact surfaces are perpendicular, the frictional force generated by the relative movement between the sealing protrusion and the mating surface is smaller, which reduces the wear of the seal and extends the service life of the double-layer seal.

[0070] like Figure 3 and Figure 4 As shown, in one embodiment, the double-layer seal further includes a mounting protrusion 160, which is mounted on the second mounting sidewall 120. The sidewall of the mounting protrusion 160 and the second mounting sidewall 120 form a mounting groove 170. The mounting protrusion 160 and the mounting groove 170 are used to cooperate with the rigid seal 300 so that the double-layer seal is mounted on the rigid seal 300.

[0071] For example, the mounting protrusion 160 is a cylindrical structure. However, in another embodiment, the mounting protrusion 160 is a polygonal prism structure, such as a triangular prism, a square prism, or a pentagonal prism.

[0072] For example, the mounting protrusion 160 is fixedly mounted on the second mounting sidewall 120 by means of welding, gluing, snap-fitting or integral molding.

[0073] In one embodiment, the rigid seal 300 is provided with a snap-fit ​​post for connecting the first sheet metal part, and the number of snap-fit ​​posts is at least one.

[0074] For example, the snap-fit ​​post includes a post body and a wedge portion. One end of the post body is fixedly connected to the rigid seal 300, and the other end of the post body is fixedly connected to the wedge portion. The fixed connection method between the post body and the rigid seal 300 is, for example, welding, gluing, snap-fitting, or integral molding. The fixed connection method between the post body and the wedge portion is, for example, welding, gluing, snap-fitting, or integral molding.

[0075] like Figures 3 to 5 As shown, in one embodiment, a positioning post 320 is provided on the side wall of the rigid seal 300 near the double-layer seal. A mating through hole 180 is provided on the sealing body 100 of the double-layer seal. The positioning post 320 passes through the mating through hole 180 of the sealing body 100 and abuts against the second sheet metal part 200. The positioning post 320 facilitates the positioning and installation of the double-layer seal on the rigid seal 300, and the end of the positioning post 320 abuts against the second sheet metal part 200, which can be used to limit the rigid seal 300.

[0076] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-layer seal, characterized in that, include: The sealing body (100) has an annular structure and includes a first mounting sidewall (110) and a second mounting sidewall (120) disposed opposite to each other. A first annular sealing protrusion (130) and a second annular sealing protrusion (140) are fixedly installed on the first mounting sidewall (110) of the sealing body (100). The second annular sealing protrusion (140) is sleeved on the first annular sealing protrusion (130). The first annular sealing protrusion (130) and the second annular sealing protrusion (140) are spaced apart. The protrusion height h1 of the first annular sealing protrusion (130) on the sealing body (100) is less than the protrusion height h2 of the second annular sealing protrusion (140) on the sealing body (100).

2. The double-layer seal according to claim 1, characterized in that, It also includes a stepped sealing protrusion (150) which is mounted on the second mounting sidewall (120) and extends out of the second mounting sidewall (120) in a direction parallel to the second mounting sidewall (120).

3. The double-layer seal according to claim 1, characterized in that, The second annular sealing protrusion (140) is inclinedly disposed on the first mounting sidewall (110).

4. The double-layer seal according to claim 3, characterized in that, The second annular sealing protrusion (140) is inclined away from the first annular sealing protrusion (130).

5. The double-layer seal according to claim 1, characterized in that, The first annular sealing protrusion (130) is perpendicular to the first mounting sidewall (110).

6. The double-layer seal according to claim 1, characterized in that, It also includes a mounting protrusion (160) mounted on the second mounting sidewall (120), the sidewall of the mounting protrusion (160) and the second mounting sidewall (120) forming a mounting groove (170).

7. A door assembly, characterized in that, include: The first sheet metal part is used to provide the mounting base; A second sheet metal part (200) is mounted on the first sheet metal part, and the second sheet metal part (200) has a door handle mounting position (210). The double-layer seal as described in any one of claims 1 to 6, wherein the first annular sealing protrusion (130) and the second annular sealing protrusion (140) of the double-layer seal abut against the door handle mounting position (210) of the second sheet metal part (200); A rigid seal (300) is mounted on the first sheet metal part, and the sealing body (100) of the double-layer seal is mounted on the rigid seal (300). The double-layer seal is located between the rigid seal (300) and the second sheet metal part (200).

8. The door assembly according to claim 7, characterized in that, The rigid seal (300) is provided with a snap-fit ​​post for connecting the first sheet metal part, and the number of snap-fit ​​posts is at least one.

9. The door assembly according to claim 7, characterized in that, A positioning post (320) is provided on the side wall of the hard seal (300) near the double seal. A mating through hole (180) is provided on the sealing body (100) of the double seal. The positioning post (320) passes through the mating through hole (180) of the sealing body (100) and abuts against the second sheet metal part (200).

10. A vehicle, characterized in that, include: A vehicle frame having door mounting positions; The door assembly as claimed in any one of claims 7 to 9, wherein the door assembly is mounted on the door mounting position of the vehicle frame.

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