Multi-Format Smart Card Socket With Chassis Adapter
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Solution Overview
Problem
Current communication terminals are limited to supporting only a single type of SIM card, such as 2FF, 3FF, or 4FF, which restricts compatibility with different smart card formats, hindering versatility and adaptability in modern communication devices.
Innovation Solution
A communication terminal design that incorporates a socket for standard smart cards and a chassis that accommodates both small and ultra-small smart cards, including a transmission mechanism for easy insertion and ejection, allowing compatibility with 2FF, 3FF, and 4FF cards, and potentially other smaller SIM cards, through a shared card slot and groove arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a communication terminal is designed to support only one single SIM card type, then the device structure remains simple, but the compatibility with different smart card formats is limited
Solution Approach 1:
The socket is designed with a universal structure that can accommodate multiple SIM card types (2FF, 3FF, 4FF) through a single interface. The main body includes a groove that can receive different card sizes, and the transmission mechanism provides unified insertion and ejection functionality for all card types, eliminating the need for separate sockets for each card format.
Solution Approach 2:
The socket structure is divided into distinct components: a main body with a groove for receiving cards, a shell for protection, and a transmission mechanism for card manipulation. This segmentation allows each component to be optimized for its specific function while working together to support multiple card types, managing complexity through modular design.
2Adaptability or versatility
If multiple separate sockets are provided for different SIM card types, then compatibility with various card formats is achieved, but the device complexity and space occupation increase
Solution Approach 1:
Instead of providing separate sockets for 2FF, 3FF, and 4FF cards, the invention uses a single universal socket that can accommodate all these card types. The groove in the main body is designed to adapt to different card dimensions, allowing one socket to replace what would traditionally require three separate sockets, thereby reducing space occupation.
Solution Approach 2:
The invention merges the functionality of multiple separate sockets into a single integrated socket structure. The transmission mechanism combines insertion and ejection capabilities for all card types into one unified system, reducing the overall space required in the terminal while maintaining compatibility with various SIM card formats.
3Area of stationary object
If a unified socket design is used for all SIM card types, then space efficiency is improved, but the precision of card fitting and connection may be compromised
Solution Approach 1:
The socket design incorporates local quality variations within the unified structure. The groove in the main body has specific geometric features tailored to accommodate different card types, and the transmission mechanism includes components that can adapt to different card dimensions. This allows the single socket to maintain precise fitting for each card type despite the unified overall design.
Solution Approach 2:
The transmission mechanism is designed to dynamically adjust to different card types during insertion and ejection operations. The mechanism can adapt its motion characteristics and force application to suit the specific card being handled, ensuring precise fitting and connection for 2FF, 3FF, and 4FF cards despite using a single static socket structure.
Data Source
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AI summary
A communication terminal compatible with multiple smart cards includes a socket for inserting a standard smart card and a chassis for making the socket fitting at least one of small and ultra-small types of smart cards. The small smart card and the ultra small smart card insert into the socket through the chassis. The present communication terminal proposes a mobile terminal compatible with 3FF and/or 4FF card because of the arrangement of the correspondent chassis in the case that it only arranges 2FF card socket.