Special-shaped sealing strip for new energy vehicle
By designing irregularly shaped sealing strips and using EPDM rubber material and glass fiber reinforced nylon skeleton, the sealing problem under the complex structure of new energy vehicle bodies has been solved, improving the sealing effect and installation convenience, and enhancing durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU LILAI SEAL
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-29
Smart Images
Figure CN224296984U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seals, especially the special-shaped sealing strips for new energy vehicles. Background Art
[0002] With the global automotive industry's transformation towards electrification and intelligence, new energy vehicles have developed rapidly due to their advantages of low emissions, low noise, and high performance. However, the body designs of new energy vehicles generally adopt complex structures such as streamlined surfaces, hidden doors, and frameless windows to reduce the wind resistance coefficient and increase the cruising range. As a result, the contours and gaps of the sealing parts such as doors, windows, and trunks present special-shaped characteristics with multi-curvatures and asymmetries, imposing higher requirements on seals. Problems with the sealing strips will seriously affect the comfort of the interior environment and the safety of electrical equipment in the vehicle.
[0003] From the perspective of material and structural properties, traditional sealing strips are mostly based on polyvinyl chloride (PVC) or ordinary rubber as the base material, without a structural support skeleton inside. The cross-sectional shape relies on the elastic deformation of the rubber itself to achieve sealing. This design is prone to sealing failure due to insufficient compression when facing the narrow gaps of the new energy vehicle body; in large deformation areas (such as the edges of curved doors), problems such as lip hardening and cracking occur due to the poor anti-aging performance of the rubber matrix, resulting in a decline in sealing performance. In summary, there is still room for improvement in the use effect of sealing strips on new energy vehicles. Summary of the Invention
[0004] The purpose of the utility model: To provide a special-shaped sealing strip for new energy vehicles, aiming to improve the problems that traditional sealing strips are difficult to adapt to the body structure of new energy vehicles, have poor sealing effects, poor installation convenience, and insufficient durability.
[0005] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:
[0006] The special-shaped sealing strip for new energy vehicles includes an installation part, and the end face of the installation part is set as a "匚" - shaped structure; a main body sealing part is arranged inside the installation part, and a first sealing protrusion is arranged on the upper side of the main body sealing part; an edge sealing part is arranged on the side of the installation part, and a second sealing protrusion is arranged on the side of the edge sealing part away from the installation part.
[0007] Furthermore, a clamping groove is arranged on the bottom surface of the installation part, and a clamping block is arranged at the clamping groove. The end faces of the clamping groove and the clamping block are both set as inverted trapezoidal structures.
[0008] Furthermore, a reinforcing skeleton is arranged inside the installation part. The reinforcing skeleton is distributed in a staggered manner with the clamping groove, and the reinforcing skeleton is made of glass fiber reinforced nylon material.
[0009] Furthermore, the end face of the main sealing part is configured as a "convex" structure, and the smaller end of the main sealing part is located inside the mounting part; the first sealing protrusion has a continuous wavy structure.
[0010] Furthermore, a first cavity is provided on the inner side of the main sealing part, and multiple partitions are arranged in a honeycomb pattern in the first cavity.
[0011] Furthermore, a plurality of second cavities are provided through the edge sealing portion, and an elastic sponge is provided in each second cavity.
[0012] Furthermore, the mounting part, the main sealing part, and the edge sealing part are all made of EPDM rubber material.
[0013] The beneficial effects of adopting the technical solution of this utility model are:
[0014] 1. This utility model consists of an installation part, a main sealing part, and an edge sealing part. The installation part, the main sealing part, and the edge sealing part are all made of EPDM rubber. EPDM rubber has good weather resistance, aging resistance, and elasticity, and can adapt to different ambient temperatures and usage conditions.
[0015] 2. The mounting part of this utility model has a slot on the bottom surface and a matching block on the vehicle body. Both the slot and the block are designed as inverted trapezoidal structures, which can be used to stably mount the mounting part on the vehicle body and make the sealing strip easy to remove.
[0016] 3. The first sealing protrusion of this utility model has a continuous wave-shaped structure. The wave-shaped protrusion can increase the contact area with the sealing part of the vehicle body and improve the sealing effect. The second sealing protrusion has an arc-shaped structure. The arc-shaped protrusion can better fit the arc-shaped structure of the vehicle body edge and further improve the sealing performance. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the mounting part in this utility model;
[0021] Figure 4 This is a cross-sectional schematic diagram of the mounting part in this utility model;
[0022] Figure 5 This is a schematic diagram of the main sealing part in this utility model;
[0023] Figure 6 This is a cross-sectional schematic diagram of the main sealing part in this utility model;
[0024] Figure 7 This is a schematic diagram of the edge sealing part in this utility model;
[0025] The markings in the diagram are: 1. Mounting part; 11. Slot; 12. Block; 13. Reinforcing frame; 2. Main sealing part; 21. First sealing protrusion; 22. First cavity; 23. Partition; 3. Edge sealing part; 31. Elastic sponge; 32. Second cavity; 33. Second sealing protrusion. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings.
[0027] In order to adapt the sealing strip to the body structure of new energy vehicles, enhance the sealing effect, improve the ease of installation and durability, this embodiment provides a sealing strip for new energy vehicles.
[0028] like Figure 1 , Figure 2 As shown, the sealing strip has an irregular cross-section and includes an installation part 1, a main sealing part 2, and an edge sealing part 3. The installation part 1, the main sealing part 2, and the edge sealing part 3 are all made of EPDM rubber. EPDM rubber has good weather resistance, aging resistance, and elasticity, and can adapt to different ambient temperatures and usage conditions.
[0029] like Figure 3 As shown, the end face of the mounting part 1 is configured as a "U"-shaped structure. A slot 11 is provided on the bottom surface of the mounting part 1, and a locking block 12 is provided at the slot 11. The locking block 12 is mounted on the vehicle body. The end faces of both the slot 11 and the locking block 12 are configured as inverted trapezoidal structures. When the sealing strip is installed on the vehicle body, the opening size of the slot 11 is adjusted by utilizing the deformation characteristics of the mounting part 1, thereby fitting the mounting part 1 onto the locking block 12. The structural characteristics of the locking block 12 and the slot 11 are used to control the stable installation of the mounting part 1 on the vehicle body.
[0030] like Figure 4As shown, in order to enhance the structural strength and anti-aging performance of the mounting part 1 and reduce the probability of deformation of the mounting part 1 during long-term use, a reinforcing frame 13 is provided inside the mounting part 1, and the reinforcing frame 13 is made of glass fiber reinforced nylon material. In addition, the reinforcing frame 13 is staggered with the slot 11 to avoid the presence of the reinforcing frame 13 affecting the installation of the card block 12 in the slot 11.
[0031] like Figure 5 As shown, the end face of the main sealing part 2 is set as a "convex" structure, and the smaller end of the main sealing part 2 is located inside the mounting part 1, while the larger part is fitted to the top surface of the mounting part 1.
[0032] A further optimization scheme involves providing a first sealing protrusion 21 on the upper side of the main sealing part 2. The first sealing protrusion 21 has a continuous wave-shaped structure. The wave-shaped protrusion can increase the contact area with the vehicle body sealing part and improve the sealing effect.
[0033] like Figure 5 , Figure 6 As shown, a first cavity 22 is provided inside the main sealing part 2. Multiple partitions 23 are arranged in a honeycomb pattern in the first cavity 22, which has good buffering and heat insulation performance and can effectively reduce the transmission of external noise and heat.
[0034] like Figure 7 As shown, the edge sealing part 3 is fitted to the outside of the mounting part, and at least two second cavities 32 are provided through the edge sealing part 3. The second cavity 32 can be configured as a cylindrical structure, and an elastic sponge 31 is provided in each second cavity 32. The elastic sponge 31 can increase the elasticity and cushioning performance of the edge sealing part and adapt to the slight deformation of the vehicle body edge.
[0035] Meanwhile, a second sealing protrusion 33 is provided on the side of the edge sealing part 3 away from the mounting part 1. The second sealing protrusion 33 has an arc-shaped structure. The arc-shaped protrusion can better fit the arc-shaped structure of the vehicle body edge and further improve the sealing performance.
[0036] During installation and use, this utility model secures the sealing strip to the corresponding part of the vehicle body by engaging the slot 11 on the mounting part 1 with the protruding locking block 12 on the vehicle body mounting part. The first sealing protrusion 21 of the main sealing part 2 contacts the sealing part of the vehicle body, and the wavy structure increases the contact area and improves the sealing effect. The honeycomb structure of the first cavity 22 reduces noise and heat transfer. The second sealing protrusion 33 of the edge sealing part 3 conforms to the arc-shaped structure of the vehicle body edge, further enhancing the sealing performance. The elastic sponge in the second cavity 32 adapts to the slight deformation of the vehicle body edge, ensuring the reliability of the seal. During long-term use, the EPDM rubber material and the reinforcing skeleton 13 ensure the durability and stability of the sealing strip.
[0037] The above embodiments based on this utility model are provided for guidance. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this invention should be included within the protection scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. An irregularly shaped sealing strip for new energy vehicles, characterized in that: It includes an installation part (1), and the end face of the installation part (1) is set as a "C" - shaped structure; a main body sealing part (2) is arranged inside the installation part (1), and a first sealing protrusion (21) is arranged on the upper side of the main body sealing part (2); an edge sealing part (3) is arranged on the side of the installation part (1), and a second sealing protrusion (33) is arranged on the side of the edge sealing part (3) far away from the installation part (1).
2. The irregularly shaped sealing strip for new energy vehicles according to claim 1, characterized in that: A clamping groove (11) and a matching clamping block (12) are arranged on the bottom surface of the installation part (1), and the end faces of both are set as inverted trapezoidal structures.
3. The irregularly shaped sealing strip for new energy vehicles according to claim 1, characterized in that: A reinforcing skeleton (13) is arranged inside the installation part (1), the reinforcing skeleton (13) is distributed in a staggered manner with the clamping groove (11), and the reinforcing skeleton (13) is made of glass fiber - reinforced nylon material.
4. The irregularly shaped sealing strip for new energy vehicles according to claim 1, characterized in that: The end face of the main body sealing part (2) is set as a "convex" - shaped structure, and the end with a smaller dimension of the main body sealing part (2) is located inside the installation part (1); the first sealing protrusion (21) is in a continuous wavy structure.
5. The irregularly shaped sealing strip for new energy vehicles according to claim 4, characterized in that: A first cavity (22) is arranged inside the main body sealing part (2), and multiple partition plates (23) are cross - connected and arranged in the first cavity (22) to form a honeycomb shape.
6. The irregularly shaped sealing strip for new energy vehicles according to claim 1, characterized in that: Multiple second cavities (32) are arranged through the edge sealing part (3), and an elastic sponge (31) is arranged in each second cavity (32).
7. The irregularly shaped sealing strip for new energy vehicles according to claim 1, characterized in that: The installation part (1), the main body sealing part (2) and the edge sealing part (3) are all made of ethylene propylene diene monomer (EPDM) rubber material.