Single-Card Tray Filler Structure for Reliable Holder Recognition
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Solution Overview
Problem
Existing electronic devices with double-card holders are unable to reliably detect and recognize when a single-card holder configuration is required, leading to potential erroneous mounting and quality issues.
Innovation Solution
A single-card holder design featuring a filler in the second slot that prevents the formation of a complete identifier, combined with material differences and notches, ensures that the holder can be accurately distinguished from a double-card holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double-card holder is used in a single-card holder configuration scenario, then the device can accommodate two card members, but it cannot be reliably detected and recognized as incompatible with single-card version devices
Solution Approach 1:
A filler is introduced as an intermediary element that occupies the second slot in single-card holder configurations. This filler physically blocks the slot and prevents the formation of a complete identifier when laser marking is applied, enabling reliable differentiation between single-card and double-card holder types through identifier completeness detection
Solution Approach 2:
The filler is strategically positioned to correspond with the identifier region, creating a localized material difference that affects identifier formation only in the critical detection area. This local quality change (material difference between filler and slot bottom surface) enables precise recognition without affecting the overall card holder functionality
2Ease of operation
If only one slot in a double-card holder gives an indication that the slot is not in use, then users are provided with some guidance, but it cannot prevent users from mounting two cards on the double-card holder
Solution Approach 1:
The filler is pre-installed in the second slot to physically prevent card member insertion before any user action occurs. This preliminary anti-action transforms the soft guidance (text indication) into a hard constraint (physical blockage), making it impossible for users to mount cards in the wrong configuration
Solution Approach 2:
The filler serves as a physical intermediary that mediates between the user's intention to insert a card and the actual insertion action. By occupying the second slot, it prevents the harmful action (incorrect card mounting) while maintaining the overall card holder structure and functionality
Data Source
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AI summary
This application relates to the technical field of card holder structures, and provide a single-card holder, an electronic device, a card holder recognition method, and a card holder assembly method, which are intended to solve the problem that a double-card holder mounted in a single-card holder configuration scenario cannot be reliably detected and recognized. The single-card holder includes a card holder body and a filler. The single-card holder has an identifier region for forming an identifier. The card holder body includes a first slot and a second slot. The first slot is configured to mount a card member. The second slot is the same as or different from the first slot. The filler is filled in the second slot, and at least corresponds to part of the identifier region. The electronic device includes a card base and the single-card holder. The single-card holder matches the card base. This application further provides a card holder recognition method that can recognize whether a card holder is the single-card holder, and a card holder assembly method. Beneficial effects of this application are that the single-card holder is physically foolproof, and is convenient to detect, to prevent a double-card holder from being erroneously mounted as a single-card holder.