A weather strip and a vehicle

By introducing a support reinforcement structure and a sound insulation reinforcement layer into the sealing strip, the problems of insufficient noise reduction capability and sealing performance degradation of traditional sealing strips in complex road conditions and high-frequency vibration environments are solved, achieving better sealing performance and noise reduction effect.

CN224465638UActive Publication Date: 2026-07-07DEEPAL AUTOMOBILE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEEPAL AUTOMOBILE TECH CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional automotive sealing strips have limited noise reduction capabilities in complex road conditions or high-frequency vibration environments, and their sealing performance is prone to degradation.

Method used

A sealing strip is designed, including an mounting part and a sealing bubble tube. The sealing bubble tube has a support reinforcement structure and a sound insulation reinforcement layer. The support reinforcement structure consists of first and second support bosses, which are used to provide support assistance during compression deformation. The mounting part is made of rubber and metal materials to ensure a stable connection.

Benefits of technology

It improves the noise reduction and sound insulation capabilities of the sealing strip in complex road conditions and high-frequency vibration environments, prevents the sealing performance from deteriorating, and enhances the contact tightness between the sealing bubble tube and the door sheet metal.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224465638U_ABST
    Figure CN224465638U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of sealing strip and vehicle, the sealing strip includes installation part and the sealing bubble tube connected with the installation part, the sealing bubble tube includes bubble tube body and the support reinforcing structure being set to the inside of the bubble tube body, the support reinforcing structure includes first support boss and second support boss being spaced apart along first direction, the first direction is parallel to the compression deformation direction of the sealing bubble tube, to make the first support boss and the second support boss abut after the compression deformation of the sealing bubble tube.The vehicle includes vehicle body sheet metal, door sheet metal and above-mentioned sealing strip, the installation part is used to be connected with the vehicle body sheet metal, the sealing bubble tube is used to contact with the door sheet metal.The utility model can improve noise reduction sound insulation capacity, also can prevent the problem that sealing performance attenuation is caused due to long-term in complex road condition or high-frequency vibration environment.
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Description

Technical Field

[0001] This utility model relates to vehicle sealing components, specifically to a sealing strip and a vehicle. Background Technology

[0002] In the modern automotive industry, with the increasing demands for driving comfort and noise reduction performance, automotive sealing strips, as an important component of the vehicle's NVH (noise, vibration, and harshness) control system, play a crucial role in the overall sound insulation and noise reduction effect of the vehicle. Traditional automotive sealing strips mainly improve noise reduction and sound insulation capabilities by increasing thickness or improving sealing structure. However, under complex road conditions or high-frequency vibration environments, existing sealing strips still have limited noise reduction capabilities and their sealing performance degrades after long-term use. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a sealing strip and a vehicle that can improve noise reduction and sound insulation capabilities, and also prevent the sealing performance from deteriorating due to long-term exposure to complex road conditions or high-frequency vibration environments.

[0004] A sealing strip according to the present invention includes an installation part and a sealing bubble tube connected to the installation part. The sealing bubble tube includes a bubble tube body and a support and reinforcement structure disposed inside the bubble tube body. The support and reinforcement structure includes a first support boss and a second support boss spaced apart along a first direction. The first direction is parallel to the compression deformation direction of the sealing bubble tube, so that the first support boss and the second support boss abut against each other after the sealing bubble tube is compressed and deformed.

[0005] Furthermore, there are two supporting and reinforcing structures, which are arranged facing each other on different sides of the bubble tube body along the second direction, and the second direction is perpendicular to the first direction.

[0006] Furthermore, both sides of the supporting and reinforcing structure are connected to the inner wall of the bubble tube body through a circular arc transition to form a continuous curved surface.

[0007] Furthermore, the sealing strip also includes a sound-insulating reinforcement layer disposed on the inner wall surface of the sealing bubble tube.

[0008] Furthermore, the sealing bubble tube is made of rubber, and the sound insulation reinforcement layer is made of PVB.

[0009] Furthermore, the mounting part includes a mounting part body and a reinforcing frame embedded in the mounting part body.

[0010] Furthermore, the mounting part is an n-shaped structure with the opening direction along the second direction, and a plurality of clamping lips are provided inside the opening of the mounting part.

[0011] Furthermore, both the mounting body and the clamping lip are made of rubber, while the reinforcing frame is made of metal.

[0012] Furthermore, the mounting portion has anti-slip texture on the side away from its opening direction.

[0013] A vehicle according to this utility model includes a body sheet metal, a door sheet metal, and the aforementioned sealing strip. The mounting part is used to connect with the body sheet metal, and the sealing bubble tube is used to contact the door sheet metal.

[0014] The beneficial effects of this utility model are as follows: The mounting part of this utility model is used to connect with the body sheet metal, and the sealing bubble tube is used to contact the door sheet metal. When the door sheet metal moves towards the body sheet metal, after the door sheet metal contacts the sealing bubble tube, the door sheet metal can drive the sealing bubble tube to compress and deform. When the sealing bubble tube is compressed and deformed, the first support boss and the second support boss will come into contact and abut against each other, providing support for the entire sealing strip cross-sectional structure, thereby reducing the attenuation of sealing performance and preventing the problem of sealing performance attenuation under long-term complex road conditions or high-frequency vibration environments. Furthermore, after the first support boss and the second support boss abut against each other, the total thickness of the sealing strip between the body sheet metal and the door sheet metal can be increased, and the sealing bubble tube can also be kept close to the door sheet metal, thereby improving noise reduction and sound insulation capabilities. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Figure 1 This is a cross-sectional schematic diagram of the sealing strip of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the connection between the sealing strip and the body sheet metal of this utility model (the arrow indicates that the door sheet metal moves towards the direction of the sealing strip).

[0018] The following labels are used in the attached diagram: 1-Mounting part, 101-Mounting part body, 102-Reinforcing frame, 103-Clamping lip, 104-Anti-slip texture; 2-Sealing bubble tube, 201-Bubble tube body, 202-Supporting reinforcement structure, 2021-First support boss, 2022-Second support boss; 3-Sound insulation reinforcement layer; 4-Body sheet metal; 5-Door sheet metal. Detailed Implementation

[0019] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 and Figure 2As shown, a sealing strip in this embodiment includes an installation part 1 and a sealing bubble tube 2 connected to the installation part 1. The sealing bubble tube 2 includes a bubble tube body 201 and a support and reinforcement structure 202 disposed inside the bubble tube body 201. The support and reinforcement structure 202 includes a first support boss 2021 and a second support boss 2022 spaced apart along a first direction. The first direction is parallel to the compression deformation direction of the sealing bubble tube 2, so that the first support boss 2021 and the second support boss 2022 abut against each other after the sealing bubble tube 2 is compressed and deformed.

[0021] Mounting part 1 is used to connect with body sheet metal 4, and sealing bubble tube 2 is used to contact door sheet metal 5. When door sheet metal 5 moves towards body sheet metal 4, after contact with sealing bubble tube 2, door sheet metal 5 can drive sealing bubble tube 2 to compress and deform. When sealing bubble tube 2 is compressed and deformed, the first support boss 2021 and the second support boss 2022 will come into contact and abut against each other, providing support for the entire sealing strip cross-sectional structure to reduce the attenuation of sealing performance, thereby preventing the problem of sealing performance attenuation under long-term complex road conditions or high-frequency vibration environment. Furthermore, after the first support boss 2021 and the second support boss 2022 abut against each other, the total thickness of the sealing strip between body sheet metal 4 and door sheet metal 5 can be increased, and the sealing bubble tube 2 can also be kept in close contact with door sheet metal 5, thereby improving noise reduction and sound insulation capabilities.

[0022] In this embodiment, two support and reinforcement structures 202 are provided, and the two support and reinforcement structures 202 are arranged facing each other on different sides of the bubble tube body 201 along the second direction, the second direction being perpendicular to the first direction.

[0023] exist Figure 1 In this context, the first direction is the left-right direction, and the second direction is the up-down direction. Therefore, two supporting reinforcement structures 202 are arranged facing each other on the upper and lower sides of the bubble tube body 201, and the first support boss 2021 and the second support boss 2022 of each supporting reinforcement structure 202 are spaced apart along the left-right direction.

[0024] Two supporting reinforcement structures 202 are arranged facing each other on the upper and lower sides of the bubble tube body 201, so that when the upper and lower sides of the bubble tube body 201 are compressed and deformed, the first supporting boss 2021 and the second supporting boss 2022 can abut against each other to provide support for the entire sealing strip cross-section structure, ensuring that the support provided by the upper and lower sides of the sealing bubble tube 2 is relatively balanced.

[0025] In this embodiment, both sides of the support and reinforcement structure 202 are connected to the inner wall of the bubble tube body 201 through an arc transition to form a continuous curved surface, which can prevent stress concentration, facilitate molding by integral extrusion, improve service life, and prevent cracks from appearing at the connection.

[0026] In this embodiment, the sealing strip further includes a sound-insulating reinforcement layer 3 disposed on the inner wall surface of the sealing bubble tube 2. The sealing bubble tube 2 has noise reduction and sound insulation capabilities, and the sound-insulating reinforcement layer 3 can further enhance the noise reduction and sound insulation capabilities of the sealing strip.

[0027] In this embodiment, the sealing bubble tube 2 is made of rubber, and the sound insulation reinforcement layer 3 is made of PVB. PVB, or polyvinyl butyral, is a soft polymer material with good viscoelasticity. The sound insulation reinforcement layer 3 made of PVB can significantly reduce noise transmission and further absorb and isolate sound.

[0028] In this embodiment, the mounting part 1 includes a mounting part body 101 and a reinforcing frame 102 embedded in the mounting part body 101. The reinforcing frame 102 can ensure the strength of the mounting part 1 and the connection stability between the mounting part 1 and the body sheet metal 4.

[0029] In this embodiment, the mounting part 1 is an n-shaped structure with its opening direction along the second direction, and a plurality of clamping lips 103 are provided inside the opening of the mounting part 1. The sealing body is connected to the body sheet metal 4 by clamping it through the opening of the mounting part 1, and the clamping lips 103 ensure the clamping effect of the mounting part 1.

[0030] In this embodiment, both the mounting body 101 and the clamping lip 103 are made of rubber, while the reinforcing frame 102 is made of metal. The metal material can be steel or aluminum.

[0031] In this embodiment, the mounting portion 1 has anti-slip texture 104 on the side away from its opening direction. Figure 1 Since the opening of the mounting part 1 faces downwards, the anti-slip texture 104 is located on the upper side of the mounting part 1. The anti-slip texture 104 is an uneven anti-slip structure formed by multiple arc-shaped or triangular protrusions. The anti-slip texture 104 is used to cooperate with the other parts, which refer to the other sheet metal parts or exterior parts around the body sheet metal 4 where the sealing strip is installed. The anti-slip texture 104 can prevent the sealing strip from slipping or becoming misaligned during use.

[0032] In this embodiment, the sealing strip is formed by integral extrusion.

[0033] In this embodiment, a vehicle includes a body sheet metal 4, a door sheet metal 5, and the aforementioned sealing strip. The mounting part 1 is used to connect with the body sheet metal 4, and the sealing bubble tube 2 is used to contact the door sheet metal 5. When the door sheet metal 5 moves towards the body sheet metal 4, after contacting the sealing bubble tube 2, the door sheet metal 5 can cause the sealing bubble tube 2 to compress and deform. When the door sheet metal 5 moves away from the body sheet metal 4, after separating from the sealing bubble tube 2, the shape of the sealing bubble tube 2 is restored.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sealing strip, characterized in that: The device includes an installation part (1) and a sealing bubble tube (2) connected to the installation part (1). The sealing bubble tube (2) includes a bubble tube body (201) and a support reinforcement structure (202) disposed inside the bubble tube body (201). The support reinforcement structure (202) includes a first support boss (2021) and a second support boss (2022) spaced apart along a first direction. The first direction is parallel to the compression deformation direction of the sealing bubble tube (2) so that the first support boss (2021) and the second support boss (2022) abut against each other after the sealing bubble tube (2) is compressed and deformed.

2. The sealing strip according to claim 1, characterized in that: Two support and reinforcement structures (202) are provided, and the two support and reinforcement structures (202) are arranged facing each other on different sides of the bubble tube body (201) along the second direction, the second direction being perpendicular to the first direction.

3. The sealing strip according to claim 1, characterized in that: The two side walls of the supporting and reinforcing structure (202) are connected to the inner wall of the bubble tube body (201) through a circular arc transition to form a continuous curved surface.

4. The sealing strip according to any one of claims 1-3, characterized in that: The sealing strip also includes a sound insulation reinforcement layer (3) disposed on the inner wall surface of the sealing bubble tube (2).

5. The sealing strip according to claim 4, characterized in that: The sealing bubble tube (2) is made of rubber, and the sound insulation reinforcement layer (3) is made of PVB.

6. The sealing strip according to claim 1, characterized in that: The mounting part (1) includes a mounting part body (101) and a reinforcing frame (102) embedded in the mounting part body (101).

7. The sealing strip according to claim 6, characterized in that: The mounting part (1) is an n-shaped structure with the opening direction along the second direction, and a plurality of clamping lips (103) are provided in the opening of the mounting part (1).

8. The sealing strip according to claim 7, characterized in that: The mounting body (101) and the clamping lip (103) are both made of rubber, while the reinforcing frame (102) is made of metal.

9. The sealing strip according to claim 7, characterized in that: The mounting part (1) is provided with anti-slip texture (104) on the side away from its opening direction.

10. A vehicle, characterized in that: Includes body sheet metal (4), door sheet metal (5) and a sealing strip as described in any one of claims 1-9, wherein the mounting part (1) is used to connect with the body sheet metal (4) and the sealing tube (2) is used to contact the door sheet metal (5).