Foldable Charging Card Holder Volume Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hand-held wallets with charging functions are bulky due to the integration of a power supply and charger cable, compromising portability as the power source volume is directly correlated with its capacity.
Innovation Solution
A small-volume, foldable charging card holder design where the power source is integrated directly with the wallet via a bendable portion, allowing the wallet and power source to form a left-right structure that can be folded, reducing overall volume and enhancing portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power supply and charger cable are integrated in a sandwich layer on one side of the card holder, then the charging function is achieved, but the card holder volume increases
Solution Approach 1:
The patent transitions from a traditional sandwich layer arrangement (one-dimensional integration) to a three-dimensional spatial arrangement where the power supply is positioned at one end and the wallet at the other, connected via a bendable portion. This dimensional change allows the charging cable to route through the bendable portion rather than occupying sandwich layer space, thereby reducing the card holder's volume while maintaining charging functionality.
Solution Approach 2:
The patent divides the charging system into separate functional modules: the power supply unit, the wallet unit, and the bendable connection portion. This segmentation allows each component to be optimized independently and connected in a space-efficient configuration, avoiding the volume penalty of integrating all components into a single sandwich layer.
2Power
If the power supply capacity is increased, then the charging capability is improved, but the power supply volume increases
Solution Approach 1:
The patent introduces a bendable portion that enables dynamic folding between the power supply and wallet. This dynamic configuration allows the system to transition between a compact folded state (for portability) and an extended state (for charging operation), effectively decoupling the power supply's intrinsic volume from the overall system's occupied space during different usage phases.
Solution Approach 2:
The bendable portion allows the wallet to fold towards the power source, creating a nested or compact configuration when not in use. This nesting principle enables the system to minimize its external volume while maintaining the full charging capacity, as the wallet and power supply can be positioned close together without requiring a larger enclosing structure.
3Adaptability or versatility
If the charger cable extends out of the sandwich layer, then the charging connection is achieved, but the card holder structure becomes complex
Solution Approach 1:
The bendable portion serves multiple functions simultaneously: it acts as the structural connection between power supply and wallet, provides the routing path for the charging cable, and enables the folding mechanism for volume reduction. This multi-functionality eliminates the need for separate cable management structures, thereby reducing overall device complexity while achieving charging connection.
Data Source
AI summary
A small-volume and foldable charging card holder includes a power source and a wallet. The wallet is provided with at least one card slot for receiving cards. The wallet is provided with a bendable portion, and is connected to the power source through the bendable portion such that the wallet is capable of being folded towards the power source or unfolded. The power source and the wallet are designed in a left-right structure that can be relatively folded.