Protective Case Gas Layer Isolates Touch Screen Conductivity
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Solution Overview
Problem
Existing waterproof cases for electronic devices fail to effectively isolate water conductivity from touch screens, leading to operational failures when used underwater.
Innovation Solution
A protective case with a gas storage function, featuring a housing with a first chamber for the electronic device and a second chamber for gas storage, where a light-transmitting sheet bulges as gas from the second chamber flows into the first chamber, creating a gas layer that isolates water conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a light-transmitting layer is used in a waterproof case, then users can control touch screens through the layer when the device is inside the case, but the light-transmitting layer is gradually squeezed to be in close contact with the touch screen, causing water conductivity to penetrate through and touch screen control to fail
Solution Approach 1:
The patent pre-inflates a gas bag unit with a gas storage function before the device is placed in the waterproof case. This preliminary inflation creates a gas layer between the light-transmitting layer and the touch screen, preventing direct contact and maintaining electrical isolation from water, thus ensuring reliable touch screen control throughout the waterproof case usage.
2Reliability
If an inflation device is externally connected to inflate the gas bag unit before use, then the gas bag unit can counteract water pressure and maintain touch screen functionality, but users need to carry the inflation device with them, which is inconvenient
Solution Approach 1:
The patent integrates the gas storage function directly into the protective case structure, merging the gas storage chamber with the case body. The gas bag unit is positioned within the protective case, and the case itself serves as the containment structure, eliminating the need for a separate external inflation device and reducing overall system complexity.
Solution Approach 2:
The gas bag unit is pre-inflated with gas before the device is placed in the waterproof case. This preliminary action ensures that the gas layer is already in place to counteract water pressure and maintain electrical isolation, eliminating the need for users to carry and operate a separate inflation device during use.
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 protective case prevents touch screen failure by isolating water conductivity through a gas layer, eliminating the need for external inflation devices and enhancing user convenience.
Implementation Method 1
gas in the second chamber is injected into the first chamber
Implementation Method 2
the light-transmitting sheet is deformed to bulge as gas in the second chamber is injected into the first chamber
Implementation Method 3
a gas layer is formed between the light-transmitting sheet and a touch screen of the electronic device to isolate conductivity of water
Data Source
AI summary
A protective case having gas storage function for an electronic device is provided, the protective case having the gas storage function for the electronic device includes a housing and a light-transmitting sheet. A first chamber and a second chamber are defined in the housing, the first chamber is configured to accommodate the electronic device, and the second chamber is configured to store gases. A peripheral edge of a front surface of the first chamber extends outward to form an opening of the first chamber, the second chamber is communicated with the first chamber, and a first valve is disposed at a communication position of the second chamber and the first chamber. The light-transmitting sheet is disposed at the opening of the first chamber, and is deformed to bulge as gas in the second chamber is injected into the first chamber.