Multi-Slot Memory Card Holder for Simultaneous Switching
Solution Overview
Problem
Existing devices do not efficiently allow multiple memory cards, such as SIM cards, to be simultaneously inserted and switched without manual intervention, limiting user convenience and device functionality.
Innovation Solution
A casing with contact pads and a mounting mechanism that enables multiple memory cards to be removably inserted and mounted on a circuit board, allowing simultaneous electrical connection and easy switching between cards, with a memory card holder that can hold cards in a stacked configuration and facilitate ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple memory cards are inserted manually one at a time, then each card can be used individually, but the switching process is time-consuming and requires manual intervention
Solution Approach 1:
The memory card holder is divided into multiple slots (first slot, second slot, third slot) that can independently hold different memory cards. This segmentation allows multiple cards to be simultaneously accessible without requiring manual removal and insertion, enabling quick switching between cards by simply selecting different slots.
Solution Approach 2:
The memory card holder is nested within the housing, creating a compact multi-card storage system. The holder contains multiple slots that can accommodate different types of memory cards (SIM cards, microSD cards) in a space-efficient arrangement, allowing simultaneous access to multiple cards without increasing overall device footprint.
2Adaptability or versatility
If a single memory card slot is used, then the device structure remains simple, but multiple memory cards cannot be simultaneously accessed
Solution Approach 1:
The memory card holder is designed with universal compatibility to accommodate multiple types of memory cards including SIM cards and microSD cards. The first slot can hold a SIM card while the second and third slots can hold microSD cards, allowing the device to perform multiple functions (telephony, storage, media playback) simultaneously without requiring separate dedicated slots for each card type.
Solution Approach 2:
Instead of providing separate external access points for each card type, the invention stacks multiple card slots vertically within a single holder structure. This dimensional arrangement allows multiple cards to be accessed through a unified interface while maintaining structural simplicity, as all slots are contained within one compact holder unit.
3Ease of operation
If memory cards are removed frequently for switching, then card selection is flexible, but the risk of loss or mixing cards increases
Solution Approach 1:
The memory cards are nested within the holder structure that is itself contained in the housing. This nested arrangement provides secure retention for multiple cards simultaneously, eliminating the risk of loss or mixing that occurs during frequent removal and insertion. The cards remain safely stored in their respective slots while maintaining easy accessibility through the unified holder interface.
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
An apparatus and corresponding memory card holder wherein the apparatus comprises: a casing configured to enable a plurality of memory cards to be removably inserted into the casing; contact pads located within the casing configured to enable an electrical connection to be established between the contact pads and at least one memory card when the plurality of memory cards are inserted within the casing; and at least one mounting portion configured to enable the apparatus to be mounted on a circuit board such that a first portion of the apparatus is positioned above the circuit board and a second portion of the apparatus is positioned below the circuit board.