Card Connector with Pressable Locking Units for Multi-Size SIM Support
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Solution Overview
Problem
Existing card connectors and bases are not compatible with different sizes of SIM cards, limiting their utilization rate and increasing manufacturing costs, as each type of connector is specific to a particular card size and requires separate assembly for different devices.
Innovation Solution
A card connector and base design featuring a bottom board with side walls forming different size areas and elastic locking units that can be pressed down or sprung back to accommodate cards of varying sizes, allowing for the same connector to support both standard and micro-SIM cards without the need for additional adapters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a card connector is designed for a specific SIM card size, then the connection reliability is improved, but the adaptability to different card sizes deteriorates
Solution Approach 1:
The card connector is designed with a bottom board that includes both side walls and locking units, enabling it to accommodate both standard SIM cards and micro-SIM cards. The side walls provide support for standard SIM cards while the locking units can be pressed down to accommodate smaller micro-SIM cards, making a single connector serve multiple functions for different card sizes
Solution Approach 2:
The locking units are designed to be movable, specifically capable of being pressed down when a micro-SIM card is inserted. This dynamic adjustment allows the connector to adapt its internal structure to match different card sizes while maintaining reliable electrical connections through the fixed pin structure
2Reliability
If separate card connectors are used for different SIM card sizes, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
The card connector integrates both standard SIM card support (via side walls) and micro-SIM card support (via pressable locking units) into a single unified structure. This eliminates the need for separate connectors for different card sizes, reducing device complexity while maintaining reliable connections through the common pin structure
Solution Approach 2:
The design merges the functions of standard SIM card retention and micro-SIM card retention into one connector by combining side walls and locking units on the same bottom board. This consolidation reduces the number of components needed and simplifies the overall device structure
3Adaptability or versatility
If a plastic card adapter is used to expand micro-SIM card size, then the adaptability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The invention extracts the adaptation function from a separate plastic card adapter and integrates it directly into the card connector structure. The locking units on the bottom board provide the necessary retention for micro-SIM cards without requiring an additional adapter component, thereby eliminating the need for high-precision assembly between separate parts
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 enables a single card connector or base to be versatile and compatible with multiple card sizes, enhancing usability and reducing manufacturing costs by eliminating the need for separate connectors and adapters, while ensuring reliable electrical connections.
Implementation Method 1
locking units capable of being pressed down or sprung back
Data Source
AI summary
The present invention discloses to a card connector, a base, and a terminal. The card connector suitable for insertion of a card includes a bottom board, where the bottom board is provided with a first-size area that is formed by side walls; the bottom board is further provided with a second-size area that is formed by locking units; when a first card is inserted into the card connector, the locking units are pressed down by the first card, and the first card is locked within the first-size area; and when the second card is inserted into the card connector, the second card is locked within the second-size area. Abase is disposed with side walls and locking units to form areas of different sizes, so that the card connector can be equipped with devices of different sizes, and can be highly versatile, widely applicable, and convenient to use.