Electrical Connector Rear Rib Structure for Waterproof Sealing
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Solution Overview
Problem
Existing electrical connectors with larger lower regions in the rear chamber experience reduced sealing effectiveness due to inadequate coverage by glues, resulting from surface tension and weight effects, which compromises the waterproof integrity.
Innovation Solution
Incorporating a rib on the rear face of the insulative housing's base that protrudes into the rear chamber, dividing the larger lower region into smaller parts to improve glue distribution and reduce the amount needed, enhancing the sealing member's formation and effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the lower region of the rear chamber is made larger to accommodate contacts, then the chamber can hold more components, but the sealing effectiveness is reduced due to inadequate glue coverage
Solution Approach 1:
The patent divides the large lower region of the rear chamber into multiple smaller regions by adding ribs. This segmentation allows glue to be distributed more effectively across the divided surfaces, ensuring adequate coverage in each smaller region while maintaining the overall large capacity of the chamber for accommodating contacts.
Solution Approach 2:
The patent applies different surface characteristics to different parts of the chamber by adding ribs with specific surface textures. These ribs create local variations in surface quality that enhance glue adhesion in critical sealing areas, while the overall chamber maintains its large volume for component accommodation.
2Reliability
If ribs are added to divide the lower region, then glue distribution is improved and sealing is enhanced, but the device complexity increases
Solution Approach 1:
The patent integrates the ribs directly into the base structure during the molding process, merging the sealing features with the existing base geometry. This approach adds the necessary structural complexity for improved sealing without requiring separate components or additional assembly steps, thus minimizing overall device complexity.
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 rib design ensures improved sealing by optimizing glue distribution and reducing the amount required, thereby enhancing the waterproof sealing between the base, outer cover, and contacts, while minimizing glue usage.
Implementation Method 1
due to surface tension and weight effects of glues in forming the sealing member
Implementation Method 2
the rib design ensures improved sealing by optimizing glue distribution
Implementation Method 3
a sealing member formed in the rear chamber to seal an interface between the base and the outer cover and an interface between the base and the contacts
Data Source
AI summary
An electrical connector includes: an insulative housing having a rear base and a front tongue; plural contacts extending rearward through the base and exposing to the tongue; an outer cover enclosing the insulative housing to define a rear chamber therebetween; and a sealing member formed in the chamber to seal an interface between the base and the outer cover and an interface between the base and the contacts, wherein the base has a rear face and a rib protruding rearward from the rear face into the rear chamber.