Waterproof Mobile Terminal Case With Multi-Seal Locking Structure
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Solution Overview
Problem
Existing waterproof cases for mobile information terminals allow water to seep inside when the absorption capacity is saturated, failing to completely prevent moisture entry.
Innovation Solution
A case design comprising a top case, a bottom case, and a housing with multiple watertight parts that sandwich and lock together, forming a sealed structure around the mobile information terminal to prevent water ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a housing section made of elastic material with absorbency is used to provide waterproof performance, then moisture absorption capacity is improved, but water can still seep inside when the absorption amount becomes saturated
Solution Approach 1:
The waterproofing system is divided into multiple independent watertight parts (first watertight part at the periphery of the screen, second watertight part between top and bottom cases, third watertight part along the chassis). Each part handles a specific waterproofing function, and their combined effect provides complete waterproofing even when individual parts are subjected to pressure or impact.
Solution Approach 2:
The housing section is made of elastic material that forms a flexible waterproof barrier. This elastic material can deform under pressure or impact while maintaining its waterproof integrity, allowing the case to withstand external forces without compromising the waterproof seal.
2Reliability
If multiple watertight parts are added to prevent water ingress, then waterproof reliability is improved, but device complexity increases
Solution Approach 1:
Multiple watertight functions are merged into a unified housing structure. The first, second, and third watertight parts are integrated into the housing section and top/bottom cases as a cohesive assembly, allowing multiple waterproofing functions to be achieved through a single unified design rather than separate components.
Solution Approach 2:
The housing section serves multiple functions simultaneously: it provides structural support, houses the mobile information terminal, and implements multiple watertight barriers (first, second, and third watertight parts). This multi-functionality reduces the need for additional separate waterproofing components.
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
Effectively prevents moisture from entering the case, ensuring complete waterproofing even under pressure and impact.
Implementation Method 1
The elastic material of the housing section has absorbency, whereby the case provides both good waterproof performance and good visibility of the display
Implementation Method 2
The housing includes a second watertight part between the top case and the bottom case, the second watertight being sandwiched between and under pressure from the top case and the bottom case
Implementation Method 3
the bottom case includes a locking part that locks the frame while biasing the frame against the periphery
Data Source
AI summary
A case for a mobile information terminal having a front face with a screen, includes a top case to be disposed above the mobile information terminal, a bottom case to be disposed below the mobile information terminal, and a housing disposed between the top case and the bottom case and to house the mobile information terminal. The housing includes a first watertight part to be disposed at a periphery of the screen. The top case includes a frame to be superimposed on the first watertight part. The bottom case includes a locking part configured to lock the frame while biasing the frame against the periphery.