Dual SIM Card Connector with Nested Terminals
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Solution Overview
Problem
Conventional electrical connectors cannot simultaneously load two SIM cards of different sizes, such as mini-SIM and micro-SIM cards, due to differences in their conductive pad configurations, and existing tray-loading connectors typically can only accommodate one SIM card.
Innovation Solution
The electrical connector device features a tray with separate receiving grooves for mini-SIM and micro-SIM cards, along with a connector module comprising distinct contact portions for each card, allowing for simultaneous loading and electrical connection of both cards while minimizing space occupation and simplifying manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional dual SIM card connector is configured with two connectors side-by-side or stacked, then two SIM cards can be loaded simultaneously, but the volume occupied is substantial
Solution Approach 1:
The patent implements a nested configuration where the second connector is positioned partially below the first connector, with the tray structure allowing one connector to be nested within the spatial envelope of the other. This vertical stacking with overlapping regions reduces the overall volume footprint compared to side-by-side placement, while maintaining the capability to load two SIM cards simultaneously through separate receiving grooves and contact portions.
2Device complexity
If a connector is designed to load one SIM card by tray, then the structure is simple, but it cannot load two SIM cards at the same time
Solution Approach 1:
The patent divides the single connector into two separate connectors, each with its own receiving groove and contact portions, while both are integrated into a unified tray structure. This segmentation allows each connector to independently load a SIM card using the simple tray-loading mechanism, thereby maintaining structural simplicity while enabling dual SIM card loading capability.
Solution Approach 2:
The patent merges two separate connector assemblies into a single integrated tray structure, where the tray serves as a common platform for both connectors. This combining approach allows the simple tray-loading mechanism to be reused for both SIM cards, maintaining ease of operation while achieving multi-card functionality.
3Adaptability or versatility
If connectors are designed for different SIM card sizes with different conductive pad configurations, then each card type can be properly connected, but the device complexity increases
Solution Approach 1:
The patent applies local quality by designing each connector with specific contact portions tailored to the conductive pad configuration of particular SIM card types. The first connector has contact portions arranged for one card type while the second connector has contact portions arranged for another card type, allowing each local region to be optimized for its specific function without requiring the entire device to be redesigned for each card variant.
Data Source
AI summary
A dual SIM card tray and an electrical connector device are disclosed. The electrical connector device comprises a tray and a connector module. The dual SIM card tray has a first receiving groove and a second receiving groove, which are positioned at two opposing sides, for respectively loading a mini-SIM card and a micro-SIM card, and has a first window communicated with the first receiving groove and a second window communicated with the second receiving groove. The first window and the second window are arranged in a lengthwise direction of the tray, so that conductive pads of the two SIM cards are exposed toward the same side. The connector module includes first and second connectors and an outer shell.