Protective Case With Detachable Electrical Expansion Modules
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Solution Overview
Problem
Smartphones are limited by inner space and manufacturing cost, making it difficult to add functional modules to meet various user needs.
Innovation Solution
A protective case with detachable connecting structures and electrical connecting structures that allow users to install expansion modules, such as sub-screens, light emitting modules, battery modules, wireless charging modules, and bracket modules, to enhance functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If functional modules are added to smartphones to meet various user needs, then adaptability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent divides the smartphone system into a base unit and detachable expansion modules. The protective case is segmented into a main body and separate module slots, allowing functional modules to be independently attached or removed. This segmentation enables users to customize functionality without permanently increasing device complexity, as modules can be added only when needed.
Solution Approach 2:
The patent implements a dynamic configuration system where the protective case can transition between different states: with or without expansion modules, with different types of modules, or with multiple modules in various slots. The detachable connecting structures enable dynamic reconfiguration of device functionality based on user needs, rather than having a fixed complex structure from the outset.
2Adaptability or versatility
If functional modules are permanently integrated into smartphones, then adaptability is improved, but portability deteriorates
Solution Approach 1:
By segmenting the functional modules as separate detachable units rather than permanently integrated components, the patent allows users to carry only the modules they need for each situation. The protective case provides standardized slots that accept modules only when required, maintaining the portability of the base device while enabling functional adaptability when modules are attached.
Solution Approach 2:
The patent changes the parameter of module attachment from permanent to temporary/detachable. This allows the device weight to be dynamically adjusted - the base protective case remains lightweight for portability, while functional modules can be added to increase weight only when specific functions are needed, rather than permanently carrying unnecessary weight.
3Device complexity
If expansion modules are made detachable to maintain portability, then device complexity is reduced, but connection reliability may deteriorate
Solution Approach 1:
The patent combines multiple connection functions into an integrated connecting structure. The detachable connector simultaneously provides mechanical attachment, electrical connection, and positioning functions through a unified design. This merging ensures that despite being detachable, the connection maintains high reliability by coordinating multiple functions in a single robust interface rather than relying on separate fragile connections.
Solution Approach 2:
The patent employs precise geometric design in the connecting structures, using complementary shapes with curved or rounded features that provide self-aligning and self-latching capabilities. The detacheable connecting structures incorporate geometric interlocking elements that ensure reliable mechanical engagement and consistent electrical contact, preventing accidental disconnection while maintaining ease of intentional detachment.
Data Source
AI summary
A protective case applied to assemble to a handheld electronic device is provided. The protective case includes an inner surface, an outer surface, a connector, a plurality of first detachable connecting structures, and a plurality of first electrical connecting structures. The connector is located at the inner surface to electrically connect to the handheld electronic device. The connector includes a plurality of signal transmitting pins. The first detachable connecting structures are arranged in a first array on the outer surface. The first electrical connecting structures are arranged in a second array on the outer surface. The first electrical connecting structures are electrically connected to the signal transmitting pins respectively.