Waterproof Case Sealing Wrap with Acoustic Slots
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Solution Overview
Problem
Existing waterproof cases for electronic devices do not effectively allow sound transmission and actuation of device components while maintaining a sealed environment, particularly when worn on the wrist or exposed to water.
Innovation Solution
A waterproof case design featuring upper and lower housing members with a sealing wrap that includes transparent sections for light transmission, acoustic slots for sound transfer, and toggle mechanisms for actuating device components, using materials with specific Young's Modulus and density for strength and flexibility, and compliantly mounted membranes for efficient sound transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof case is designed to be completely sealed, then water protection is improved, but sound transmission and device actuation are worsened
Solution Approach 1:
The sealing wrap is divided into multiple sections: sealed portions that provide waterproof protection and thin-walled transparent portions that allow sound transmission. This segmentation enables different regions of the same component to serve different functions - maintaining water resistance while enabling acoustic communication and device control.
Solution Approach 2:
The thin-walled transparent portion of the sealing wrap acts as an intermediary element that transmits sound waves from the external environment to the electronic device interior while maintaining the waterproof seal. This intermediary structure allows acoustic energy to pass through without compromising the waterproof barrier.
2Reliability
If a waterproof case is designed to be completely sealed, then water protection is improved, but light transmission and screen visibility are worsened
Solution Approach 1:
The sealing wrap exhibits local quality variations with different sections having different optical properties. The thin-walled transparent portions are specifically designed to be translucent or transparent to allow light and screen visibility, while other portions maintain full sealing opacity. This localized differentiation enables both waterproof protection and optical transmission where needed.
3Strength
If thick walls are used in the sealing wrap for strength, then structural integrity is improved, but sound transmission and light transmission are worsened
Solution Approach 1:
The sealing wrap employs local quality differentiation where thin-walled sections provide acoustic and optical transmission while thicker portions maintain structural integrity and waterproof sealing. This localized thickness variation allows the same component to simultaneously achieve both strength and sound transmission without requiring separate elements.
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
Enables clear sound transmission and actuation of electronic device components within a sealed, waterproof case, allowing light transmission and maintaining a watertight seal even when worn on the wrist, while providing durable and cost-effective protection.
Implementation Method 1
The thin walled section includes transparent portions allowing the transmission of light. The light may include green spectrum light and infrared light.
Implementation Method 2
provide a clear transmission of sound from the interior of the case to an exterior of the case and/or from the exterior to the interior of the case
Data Source
AI summary
A waterproof case for an electronic device that includes an upper housing member and a lower housing member including lugs formed thereon attaching to a strap member. A sealing wrap is positioned about an electronic device. The sealing wrap is positioned between the upper and lower housing members when the upper and lower housing members are coupled. The sealing wrap includes a lower wall having a thin walled section having transparent portions allowing the transmission of light.