Rotating Phone Case Card Storage With Stable Clip Retention
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Solution Overview
Problem
Existing protection cases for portable electronic devices with cardholders are bulky and insecure, failing to provide stable storage for cards.
Innovation Solution
A multi-functional protection case with a rotatable rear cover featuring a card accommodating chamber, an elastic clip, and a damping hinge, along with a camera cover and sliding cover, to ensure secure and compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cardholder is added to the protection case to store cards, then the functionality is improved, but the case becomes bulky and the card storage becomes unstable
Solution Approach 1:
The cardholder is nested within the protection case structure, specifically integrated into the rear cover's card accommodating chamber. The cardholder components (elastic clip, guiding plate) are contained within the existing case volume rather than adding external bulk, allowing card storage functionality while maintaining a compact overall case size.
Solution Approach 2:
The card storage function is segmented into distinct components (card accommodating chamber, elastic clip, guiding plate) that are integrated into the existing case structure. This segmentation allows each component to perform its specific function efficiently while collectively providing stable card storage without requiring a completely separate cardholder unit that would increase case volume.
2Adaptability or versatility
If a cardholder is added to the protection case to store cards, then the functionality is improved, but the card storage becomes unstable
Solution Approach 1:
The elastic clip provides self-adjusting card retention through its elastic properties, automatically adapting to different card thicknesses and securing them firmly. The guiding plate works with the elastic clip to create a self-contained card storage mechanism that maintains stability without requiring additional external support structures or complex locking mechanisms.
Solution Approach 2:
The elastic clip's material parameters (elasticity, flexibility) are specifically selected to provide optimal card retention. The clip can deform elastically to accommodate cards of varying thickness while maintaining secure holding force, and the guiding plate's geometric parameters are designed to guide cards into the correct position for stable storage.
3Adaptability or versatility
If the rear cover is rotatably connected to provide card storage access, then the card storage functionality is improved, but the structural complexity increases
Solution Approach 1:
The rear cover is designed with rotational movement capability through a hinge connection, transitioning from a static to a dynamic structure. This allows the rear cover to rotate open for card insertion/removal and rotate closed for secure storage, providing functional adaptability while using a simple hinge mechanism rather than complex locking or sliding systems.
Solution Approach 2:
The rotatable rear cover serves multiple functions: it protects the device back, provides access to the card accommodating chamber, and maintains a sleek closed appearance. The hinge mechanism enables the rear cover to perform both protective and access-providing functions, reducing the need for separate components and overall structural complexity.
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 solution provides stable and compact storage for cards and electronic devices, enhancing user convenience and security.
Implementation Method 1
an elastic clip is provided on the rear cover... places the card between the elastic clip and the card accommodating chamber, and clips the card in the card accommodating chamber through the elastic clip
Implementation Method 2
the rear cover and the casing are connected by a damping hinge
Data Source
AI summary
A multi-functional protection case for a portable electronic device, including: a casing and a rear cover; the casing is provided with an device accommodating chamber for accommodating the portable electronic device; the rear cover is located at a back of the casing and is rotatably connected to the casing; a card accommodating chamber is defined on the rear cover, and the card accommodating chamber is configured to store card; and an elastic clip is provided on the rear cover. The multi-functional protective case of this portable electronic device avoids the appearance of the multi-functional protective case of the portable electronic device from becoming abrupt by opening a card accommodating chamber inside the back cover. At the same time, the card is clipped by an elastic clip to improve the stability of card storage.