Frameless Door Sealing Strip Structure for Narrow C-Pillar Glazing
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Solution Overview
Problem
Current frameless door sealing systems, particularly split systems, suffer from visual imperfections due to the presence of C-pillars, which result in a wide opaque area and poor aesthetic appeal, and lack a solution for seamless integration without C-pillars.
Innovation Solution
A sealing strip structure that connects to the vehicle window through a guide rail and injection molded element, eliminating the need for connection to body sheet metal, thereby minimizing the visible width at the C-pillar to less than 50mm and optimizing the visual effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing strip is used in a dust cover of an air conditioner, then sealing performance is improved, but dust and hair accumulate on the sealing strip over time, deteriorating sealing效果
Solution Approach 1:
The patent extracts the problematic accumulation surface by designing a through-hole structure that allows dust and hair to be removed from the sealing strip surface, preventing their accumulation and maintaining sealing performance over time
Solution Approach 2:
The sealing strip incorporates a through-hole structure that creates a porous configuration, allowing dust and hair to pass through rather than accumulate on the surface, thus maintaining sealing effectiveness
2Ease of manufacture
If the sealing strip structure is simplified, then manufacturing cost is reduced, but the ability to prevent dust and hair accumulation is compromised
Solution Approach 1:
The sealing strip is segmented with through-holes that divide the continuous surface into multiple sections, allowing dust and hair to be channeled through the holes rather than accumulating, while maintaining a relatively simple overall structure
Solution Approach 2:
The through-hole structure introduces a vertical dimension to dust and hair removal, allowing particles to pass through the sealing strip thickness rather than accumulating on the surface, adding a new functional dimension without significantly complicating the structure
3Duration of action of stationary object
If the air conditioner operates for a long time, then cooling function is maintained, but dust and hair accumulation on the sealing strip deteriorates sealing performance
Solution Approach 1:
The through-hole structure enables the sealing strip to self-clean by allowing dust and hair to naturally fall through the holes during operation, eliminating the need for manual intervention and maintaining sealing performance throughout extended operation periods
Data Source
Figure 1~2
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AI summary
A sealing strip structure and a sealing device. The sealing strip structure comprises a first sealing strip. The first sealing strip comprises a first stop portion (11), a second stop portion (12), a third stop portion (13), a first snap-fit portion (21), and a second snap-fit portion (22). The first stop portion (11), the second stop portion (12), and the third stop portion (13) are all used for abutting against window glass (70). The first stop portion (11) is connected to the second stop portion (12). The first snap-fit portion (21) is connected to the first stop portion (11), and the first snap-fit portion (21) is used for being connected to an injection molded part (60) and a guide rail (50). The second snap-fit portion (22) is separately connected to the second stop portion (12) and the third stop portion (13). The second snap-fit portion (22) is used for being snap-fitted to the guide rail (50). The first stop portion (11) is further used for abutting against the guide rail (50). The sealing strip structure can be connected to the glass by means of the guide rail and the injection molded part, and the sealing strip structure does not need to be connected to body sheet metal. The sealing strip structure can be applied to body sheet metal having no C-pillar.