Foldable Phone Case Hinge Protector Assembly Design
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Solution Overview
Problem
Conventional phone cases for folding phones do not adequately protect the hinge structure, which is prone to wear and tear due to its opening and closing mechanism, and often fail to provide comprehensive protection for the front and back screens.
Innovation Solution
A full-body protective phone case design featuring a hinge protector assembly with movably threading needle pieces, a baffle plate to prevent excessive hinge opening, adsorption slots for secure attachment, and a protective sliding window assembly, along with non-slip rubber layers and a rotating support for enhanced grip and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional phone cases are used for folding phones, then the front and back screens are protected, but the hinge structure is exposed to wear and tear
Solution Approach 1:
The phone case is divided into multiple protective components: a front screen protection frame, a backboard, and a hinge protection frame. Each component independently protects specific vulnerable areas, allowing the hinge to be protected without compromising screen protection or increasing overall complexity.
Solution Approach 2:
The hinge protection frame is nested within the overall case structure, with the fixed support integrated into the backboard. This nested arrangement allows multiple protective functions to be combined in a compact design, preventing hinge wear while maintaining case simplicity.
2Reliability
If the hinge protection frame is made detachable with movable threading needle pieces, then the hinge can be protected during opening and closing, but the attachment reliability may be reduced
Solution Approach 1:
The movable threading needle pieces enable the hinge protection frame to dynamically adjust during the opening and closing process. The needle pieces can move along the folding screen to accommodate the changing distance between the front screen protection frame and backboard, maintaining stable attachment throughout the movement cycle.
Solution Approach 2:
The movable threading needle pieces act as intermediaries between the hinge protection frame and the folding screen. They transfer and distribute the mechanical stresses during opening and closing, protecting the hinge while maintaining stable connection through the intermediate needle mechanism.
3Reliability
If a baffle plate is added to prevent excessive hinge opening, then the hinge is protected from over-extension, but the device complexity increases
Solution Approach 1:
The baffle plate is positioned in advance to prevent excessive hinge opening before it can cause damage. By placing the baffle plate between the hinge protection frame and the folding screen, the design proactively blocks over-extension, protecting the hinge from wear caused by excessive opening angles.
Solution Approach 2:
The baffle plate extends the protection into the angular dimension by limiting the maximum opening angle. This dimensional constraint prevents the hinge from exceeding safe rotation angles, adding protective functionality without significantly increasing structural complexity.
4Reliability
If adsorption slots with magnetic materials are added to the hinge protection frame, then secure attachment is achieved, but the manufacturing complexity increases
Solution Approach 1:
The mechanical attachment system is replaced with a magnetic attachment system using adsorption slots filled with magnetic materials. Instead of relying on mechanical interlocking or adhesives, the hinge protection frame attaches securely through magnetic attraction, simplifying the attachment mechanism while improving reliability.
Solution Approach 2:
The attachment mechanism transitions from mechanical to magnetic by changing the physical parameter of the attachment force. The adsorption slots are designed to accommodate magnetic materials that generate sufficient magnetic field strength for secure attachment, achieving reliable fixation through magnetic field parameters rather than mechanical design.
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 comprehensive protection for the hinge, front, and back screens, preventing wear and tear, ensuring secure attachment, and enhancing usability with improved grip and magnetic adhesion, while allowing for flexible stylus storage and camera protection.
Implementation Method 1
the interior of the adsorption slot is filled with adsorption materials
Implementation Method 2
the upper and lower sides of the upper cover plate are fixed with non-slip rubber layers
Implementation Method 3
there is an adhesive strip connected to the side of the tempered film near the front screen protection frame
Data Source
AI summary
The present disclosure provides a full-body protection phone case for a fully protected foldable screen, comprising: a lower backboard, an upper cover plate and hinge protector assembly; the hinge protector assembly is installed on one side of the lower backboard and the upper cover plate; the hinge protector assembly comprises a hinge protection frame, fixed supports, movably threading needle pieces, connecting plates and threaded holes; the fixed supports are fixed on both sides of the hinge protection frame close to the lower backpboard and the upper cover plate; the movably threading needle pieces run through the interior of the fixed supports; the two ends of the movably threading needle pieces are rotatably connected with the connecting plates, and the side of the connecting plate is equipped with the threaded holes, the inner side of the upper cover plate is equipped with a front screen protection frame.