Elastic Cable Seal Structure for Easy Connector Insertion
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Solution Overview
Problem
Conventional sealing members for electronic devices impede cable insertion while attempting to seal between the cable and the device body, compromising insertability and sealing effectiveness.
Innovation Solution
A sealing member with a housing made of elastic material, featuring a first opening, a second opening, an inclined tapered surface, and a gap between inner and outer wall portions, allowing easy cable insertion while maintaining effective sealing by guiding the cable and distributing stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is attached to seal between the cable and electronic device body, then sealing effectiveness is improved, but cable insertability deteriorates
Solution Approach 1:
The housing is made of elastic material that can dynamically change its shape during cable insertion. The wall portions elastically deform to accommodate the cable passing through, then return to their original shape to maintain the sealed state, thus resolving the contradiction between maintaining sealing effectiveness and enabling easy cable insertion
Solution Approach 2:
The elastic material's physical parameters (shape, volume) change during the insertion process. The housing expands to allow cable passage and then contracts to seal, utilizing parameter changes to achieve both insertability and sealing effectiveness
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 solution enables accurate sealing between the cable and the electronic device body while allowing easy cable insertion, reinforcing the housing, and ensuring reliable waterproofing across various cable diameters.
Implementation Method 1
a housing (16) made of an elastic material
Data Source
AI summary
A sealing member is attached to a connector opening of an electronic device to seal between an insulating cover of a cable inserted in the connector opening and a main body of the electronic device. The sealing member includes a housing made of an elastic material. The housing includes a first opening, a second opening facing the first opening and located to an inside of the electronic device than the first opening, and an inclined surface having a tapered shape that is tapered inward from the first opening to the second opening. The housing includes a first cylindrical portion forming the inclined surface inside the first cylindrical portion, a second cylindrical portion provided outside the first cylindrical portion, and a gap formed between the first cylindrical portion and the second cylindrical portion. The first cylindrical portion and the second cylindrical portion are connected to each other around the first opening.