Sliding Door Sealing Structure with Touch Sensor Buffer
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Solution Overview
Problem
The existing sealing structure for sliding doors with touch sensors fails to completely prevent water, snow, and noise infiltration due to deviations in assembly, leading to incomplete sealing by the inner seal alone.
Innovation Solution
A sealing structure that includes a sliding door, a touch sensor, an inner seal, a drip seal, a buffer, and a projection, where the projection extends from the touch sensor and makes elastic contact with the buffer, enhancing the sealing function by preventing water from reaching the inner seal and reducing noise infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inner seal alone is used for sealing, then the device complexity is reduced, but the sealing reliability deteriorates due to assembly deviations allowing water and noise infiltration
Solution Approach 1:
The sealing structure is divided into multiple independent sealing elements: the inner seal (20) for primary sealing, the drip seal (30) for water drainage sealing, and the buffer (100) with projection (200) for additional sealing and noise reduction. Each segment performs a specific sealing function, and together they provide redundant sealing that maintains reliability even if one segment is compromised by assembly deviations.
2Reliability
If the inner seal makes strong elastic contact with the sliding door, then the sealing reliability is improved, but the door closability deteriorates due to increased friction and binding
Solution Approach 1:
The sealing function is segmented across multiple components with different contact characteristics. The inner seal (20) provides primary sealing with controlled elastic contact, while the buffer (100) and projection (200) arrangement provides additional sealing with reduced contact force. This segmentation allows the system to achieve reliable sealing without requiring excessive elastic contact force from any single component, thereby maintaining smooth door operation.
Solution Approach 2:
The buffer (100) acts as an intermediary element between the projection (200) and the sliding door assembly. It provides a compliant interface that achieves sealing through gentle elastic contact rather than strong force, reducing friction and binding while maintaining sealing reliability. The buffer mediates the interaction between the sealing components and the door, enabling effective sealing with minimal operational resistance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution improves the sealing and soundproofing functions of the sliding door, preventing water and snow infiltration while maintaining the precision and functionality of the touch sensor, and reducing the elastic contact force on the inner seal to prevent door closability deterioration.
Implementation Method 1
the projection (200) makes elastic contact with the buffer (100)
Implementation Method 2
The inner seal 20 and the drip seal 30 makes elastic contact with an inner-cabin side of the sliding door 1
Data Source
AI summary
A sealing structure includes a sliding door, a touch sensor, an inner seal, a drip seal, a buffer, and a projection. The inner seal couples to a door opening. The drip seal extends in a front and rear direction of an automobile body, is above the door opening, and is closer to an upper part of the automobile body than the inner seal. The drip seal and the inner seal make elastic contact with the sliding door. The buffer extends in an upper and lower direction of the automobile body and protrudes outwardly. The buffer is provided on a part of a body panel, which is closer to a front part of the automobile body than the door opening, and faces and is close to a flange when the sliding door is in a closed position. The projection extends from the touch sensor and makes elastic contact with the buffer.