Rotating Cover Connector Sealing for Uniform Packing Compression
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Solution Overview
Problem
Connectors with rotating covers face issues with uniform compressive deformation of sealings, leading to compromised waterproof performance due to timing differences in contact between packing and housing components, resulting in potential contact failures and decreased sealing effectiveness.
Innovation Solution
A connector design featuring an annular packing with a first sealing portion closer to the rotating shaft and a second sealing portion farther away, both compressed at the same timing when the cover is closed, ensuring uniform contact and compression across the sealing interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single annular packing is used in a rotating cover connector, then the structure is simple, but the compressive deformation is non-uniform due to timing differences when the cover closes, deteriorating waterproof performance
Solution Approach 1:
The single annular packing is divided into two separate sealing portions: a first sealing portion and a second sealing portion. This segmentation allows each portion to be positioned at different radial distances from the rotating shaft, enabling them to contact the housing at different timings during cover closure. The first sealing portion contacts first, followed by the second sealing portion, ensuring uniform compression throughout the sealing interface and maintaining reliable waterproof performance.
2Reliability
If the packing is positioned to seal the fitting portion, then sealing effectiveness is improved, but non-uniform compression occurs due to rotational closure timing differences
Solution Approach 1:
Different portions of the sealing structure are given different properties by positioning the first sealing portion and second sealing portion at different radial distances from the rotating shaft. This local differentiation in positioning allows each sealing portion to perform its sealing function at the appropriate timing during cover closure, ensuring both sealing effectiveness and uniform compressive deformation throughout the sealing interface.
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
This configuration ensures stable and effective waterproof performance by uniformly compressing the annular packing across the entire sealing interface, preventing contact failures and maintaining high sealing integrity.
Implementation Method 1
an annular packing disposed at a fitting portion of the opening portion and the tubular portion and configured to seal the fitting portion by being compressed in a direction intersecting a connector fitting direction
Data Source
AI summary
A connector includes: a housing having an opening portion having a tubular shape; a rotating cover having a tubular portion fitted into the opening portion and rotatably attached to the housing; and an annular packing disposed at a fitting portion of the opening portion and the tubular portion and configured to seal the fitting portion by being compressed in a direction intersecting a connector fitting direction. The annular packing includes a first sealing portion and a second sealing portion, the first sealing portion is provided at a position closer to a rotating shaft of the rotating cover than the second sealing portion, and the second sealing portion is provided at a position farther away from the rotating shaft than the first sealing portion, and is compressed between the opening portion and the tubular portion at the same timing as the first sealing portion when the rotating cover is closed.