一种汽车外饰板与密封条的配合结构
By combining the C-shaped sealing strip with double-sided tape and the skeleton reinforcement, the problem of the sealing strip shifting on the automotive exterior panel due to vibration and thermal expansion and contraction is solved, achieving stable adhesion and vibration resistance between the sealing strip and the exterior panel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KAIZHI TECH CO LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional sealing strips are prone to shifting between the car's exterior trim panels and the body frame due to vibration and thermal expansion and contraction, resulting in a decrease in sealing performance and aesthetics.
The design incorporates interlocking teeth on the inner bottom wall of the C-shaped sealing strip with trapezoidal grooves on the surface of the double-sided adhesive tape, combined with a reinforcing skeleton, to form a mechanical interlocking structure. This enhances the bonding strength, resists vibration, and adapts to the curvature of the exterior panel.
It improves the bonding strength and stability between the sealing strip and the exterior panel, prevents the sealing strip edge from collapsing or curling, and maintains the sealing effect during long-term use.
Smart Images
Figure CN224511035U_ABST
Abstract
Claims
1. A matching structure of an automobile exterior panel and a weather strip, comprising an exterior panel (1) and a body frame (2), characterized in that: A C-shaped sealing strip (3) is provided between the top of the exterior trim panel (1) and the top of the body frame (2); a double-sided tape (4) is pasted on the top end face of the exterior trim panel (1), and the double-sided tape (4) has multiple mating grooves (401) arranged in a linear pattern on the side of the double-sided tape (4) near the C-shaped sealing strip (3). The inner bottom wall of the C-shaped sealing strip (3) is in contact with the inner top wall of the outer trim panel (1), and the inner top wall of the C-shaped sealing strip (3) is bonded to the double-sided tape (4). The inner bottom wall of the C-shaped sealing strip (3) is integrally formed with multiple engagement teeth (301) that engage and position with the mating groove (401); The C-shaped sealing strip (3) has a skeleton reinforcement (5) embedded inside.
2. The structure of the cooperation between the automobile exterior panel and the sealing strip according to claim 1, characterized in that: The mating groove (401) on the double-sided tape (4) is a trapezoidal groove with a depth of 30%-50% of the tape thickness. The cross-sectional shape of the biting teeth (301) matches the mating groove (401).
3. The cooperating structure of an automobile exterior panel and a weather strip according to claim 1, characterized in that: The skeleton reinforcement (5) has a C-shaped structure.
4. The cooperating structure of an automobile exterior panel and a weather strip according to claim 3, characterized in that: The skeleton reinforcement (5) includes multiple space frames (501), each space frame (501) has a connecting groove (502) and a connecting hook (503) at both ends, and each connecting hook (503) is inserted and locked into the connecting groove (502) adjacent to it.
5. The cooperating structure of an automobile exterior panel and a weather strip according to claim 4, characterized in that: Each space frame (501) has a support protrusion (504) on its inner bottom wall, and each support protrusion (504) is embedded inside the interlocking teeth (301) to limit its deformation.
6. The cooperating structure of an automobile exterior panel and a weather strip according to claim 5, characterized in that: The sidewall of the support protrusion (504) fits against the inner sidewall of the biting tooth (301).