Dynamic Sealing Structure for Sliding Toggle Key Reliability
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Solution Overview
Problem
Toggle keys in electronic devices face challenges in maintaining effective sealing due to sliding motion, leading to potential failure of the sealing structure when frequently used.
Innovation Solution
A sealing structure comprising a housing, a moving member, a sealing element, and a drive assembly, where the drive assembly applies a force to the moving member to abut the sealing element against the housing, ensuring effective sealing of openings during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If toggle keys are slidingly connected to enable toggling operation, then the keys can be operated to complete functions, but the sealing structure becomes difficult to seal effectively and is prone to failure during frequent use
Solution Approach 1:
The patent applies the dynamics principle by making the sealing element movable rather than fixed. The sealing element is configured to move between a first position (abutting against the housing to seal the opening) and a second position (retracted to allow key toggling). This dynamic sealing mechanism allows the sealing structure to adapt to the toggling motion, maintaining both operational functionality and sealing reliability during frequent use
Solution Approach 2:
The patent segments the sealing system into distinct components: a housing, a movable sealing element, and a drive assembly. This segmentation allows each component to perform its specific function independently - the housing provides structural support, the sealing element provides the sealing function, and the drive assembly provides the actuating force. This modular approach enables the sealing element to move independently to maintain sealing during toggling operations
2Object-affected harmful factors
If the sealing element is abutted against the housing to seal the opening, then waterproofing and dustproofing are improved, but wear on the sealing element increases during frequent toggling
Solution Approach 1:
The dynamic positioning of the sealing element allows it to abut against the housing only when sealing is required (at the first position), rather than maintaining constant contact. During toggling operations, the sealing element moves to the second position, reducing contact and wear. This dynamic approach maintains effective waterproofing and dustproofing while minimizing wear during frequent operations
Solution Approach 2:
The sealing element operates in periodic cycles: abutting against the housing to seal the opening when needed, then retracting to allow toggling. This periodic action pattern ensures sealing is maintained during static periods while reducing wear during operational periods, extending the service life of the sealing element
Data Source
AI summary
A sealing structure includes a housing, a moving member, a sealing element, and a drive assembly. The housing includes an opening. The moving member is located within a space enclosed by the housing and is capable of moving relative to the opening from a first position to a second position. The sealing element is arranged between the housing and the moving member. The drive assembly provides a first force to the moving member in a direction from the moving member to the opening at the first position and the second position to cause the sealing element to be abutted between the moving member and the housing to seal the opening.