Modular Mobile Device Case with USB Hub and Mode Switch
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Solution Overview
Problem
Portable electronic devices face limitations in storage capacity upgrades, with existing external modules being bulky, unprotected, and requiring disassembly, which complicates memory card swaps and restricts the attachment of aftermarket devices.
Innovation Solution
An expandable and modular protective mobile device case with a circuit board featuring a USB hub and mode selection switch, allowing for secure attachment of aftermarket devices like memory card readers and USB hubs, while providing protection against impacts and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If external electronic modules are used to expand storage memory, then storage capacity is improved, but the modules are bulky and unprotected from shock and vibration
Solution Approach 1:
The external electronic modules are nested within the protective case structure. The case contains compartments and mounting mechanisms that hold memory card readers, USB hubs, and other expansion devices securely inside the case body, protecting them from external shocks and vibrations while maintaining accessibility.
Solution Approach 2:
The protective case incorporates cushioning materials and shock-absorbing structures designed beforehand to protect the electronic modules. The case includes foam lining, rubberized interiors, and flexible mounting mechanisms that absorb impact forces before they reach the sensitive electronic components.
2Quantity of substance
If memory cards are attached to portable electronic devices, then storage capacity is expanded, but the device must be partially disassembled which increases the possibility of damage
Solution Approach 1:
The protective case serves as an intermediary device that provides a safe environment for memory card operations. Instead of directly manipulating the device's internal components, users can attach and swap memory cards through the case's external interfaces, reducing the risk of damaging the portable device during disassembly and reassembly.
3Adaptability or versatility
If multiple aftermarket electronic devices are attached to a portable electronic device, then functionality is expanded, but only one device can be attached at a time which limits versatility
Solution Approach 1:
The protective case is designed with multiple universal interfaces and mounting locations that can accommodate various types of aftermarket electronic devices simultaneously. The case includes slots for memory card readers, ports for USB hubs, and mounting points for other accessories, all accessible at the same time, allowing users to expand functionality without sequential attachment limitations.
4Ease of operation
If the back case is removed to attach memory cards, then memory card installation is enabled, but the sleek form factor is compromised and damage risk increases
Solution Approach 1:
The protective case is designed as a segmented structure with separate access points for different functions. Memory card slots and other interfaces are accessible through external openings or removable panels that do not require removing the entire back case, maintaining the device's sleek form factor while enabling easy memory card installation and device swapping.
Data Source
AI summary
In preferred embodiments, an expandable and modular protective mobile device case apparatus comprises a protective shell configured to receive a mobile device; a circuit board located within the protective shell said circuit board comprising a USB hub and a mode selection switch, wherein the USB hub is in electrical communication with the mode selection switch; and a male plug member in electrical communication with the mode selection switch and configured to transfer electrical signals from the mode selection switch to the mobile device.