Integrated Card Tray Structure for Thinner Mobile Device Holders
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Solution Overview
Problem
The thickness of card trays in mobile devices is excessive due to the inclusion of steel sheets, which hinders device thinning and miniaturization and affects user experience.
Innovation Solution
A card tray structure with integrated first and second connecting beams that enhance strength without the need for steel sheets, featuring staggered card slots and convex ribs to support and limit cards, reducing overall thickness and space consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel sheets are arranged in the card tray to increase thickness, then the card tray structure strength is improved, but the overall thickness of the card holder assembly increases
Solution Approach 1:
The patent removes the steel sheet from the card tray structure, extracting the harmful element that caused increased thickness while maintaining structural integrity through alternative design approaches
Solution Approach 2:
The patent transitions from a traditional layered structure (card holder + steel sheet + card tray) to an integrated one-piece card tray structure, changing the dimensional arrangement to eliminate the need for additional thickness-providing layers
2Stability of the object's composition
If steel sheets are used to reinforce the card tray, then structural stability is improved, but device miniaturization is hindered
Solution Approach 1:
The patent merges the card tray structure into a single integrated piece without separate reinforcement elements, combining structural support and card-holding functions into one compact unit that reduces overall device volume
Solution Approach 2:
The patent employs a thin-walled plastic structure with optimized rib reinforcement that provides adequate structural stability without the bulk of steel sheets, achieving miniaturization while maintaining functional integrity
3Reliability
If traditional card tray design with steel sheets is used, then card support is adequate, but user experience is affected due to large space consumption
Solution Approach 1:
The patent applies local reinforcement through strategically positioned ribs and protrusions in the card tray structure, providing adequate card support only where needed rather than uniformly throughout, thereby reducing overall space consumption while maintaining card support reliability
Data Source
Figure 1a~1b
Figure 1c~2
Figure 3a~3b
AI summary
This application discloses a card tray structure, a card tray assembly, and an electronic device. The card tray structure includes a card tray. The card tray includes a supporting body. The supporting body is a frame enclosed by a frame edge. A first platform portion is arranged at an edge on one side of the frame edge to form a first card slot, and a second platform portion is arranged at an edge on an other side of the frame edge to form a second card slot. The card tray further include: a first connecting beam, where two ends of the first connecting beam are respectively connected to the frame edge, there are two first card slots, and the two first card slots are respectively located on two sides of the first connecting beam; and a second connecting beam, where two ends of the second connecting beam are respectively connected to the frame edge, the second platform portion and the second connecting beam define the second card slot, the first connecting beam is arranged correspondingly to the second card slot, and the second connecting beam is arranged correspondingly to the first card slot.