19-Pin Connector for UFS and Micro SD Card Dual Support
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Solution Overview
Problem
The coexistence of UFS and Micro SD cards in modern cell phone products is hindered by the lack of a compatible high-speed and high-density connector that can effectively support both types of cards, given their differing interface transmission rates and card geometries.
Innovation Solution
A new connector design featuring an end component with nineteen pins, including a 'normally open' switch (Pin 19) that changes state upon card insertion, allowing for secure connection and data transmission between UFS and Micro SD cards, with specific pin arrangements and constructions optimized for each type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a connector is designed for UFS cards with high transmission rate, then data transmission speed is improved, but compatibility with Micro SD cards deteriorates
Solution Approach 1:
The connector is designed with 19 pins that can accommodate both UFS cards (12 pins) and Micro SD cards (8 pins) through a unified pin assignment scheme. The connector maintains UFS-level high-speed transmission capability while being physically and electrically compatible with both card types, eliminating the need for separate connectors for different card standards.
2Adaptability or versatility
If the connector supports both UFS and Micro SD cards, then adaptability is improved, but device complexity increases
Solution Approach 1:
The 19-pin connector is segmented into different functional groups: pins 1-12 for UFS card connections and pins 1-8 for Micro SD card connections, with pins 9-19 serving as shared or control functions. This segmentation allows the single connector to handle both card types through structured pin assignment without requiring complex switching mechanisms or multiple separate connectors.
3Ease of operation
If Pin 19 is used as a switch for hot plugging, then ease of operation is improved, but risk of overheating and data loss increases
Solution Approach 1:
Pin 19 is configured as a normally-open switch that closes automatically when a card is inserted into the connector. This preliminary action detects card presence before data transmission begins, enabling the system to prepare for hot plugging operations in advance. The switch state change triggers controlled connection establishment, allowing safe hot insertion and removal while preventing unauthorized access during active data operations.
Data Source
AI summary
The present application relates to the field of electric vehicle connector, particularly to a new connector applied to USF cards and Micro SD cards. The connector comprises an end component, a frame and an outer shell. The end component is provided in the frame covered with the outer shell; UFS cards or Micro SD cards can be inserted into the frame and connected with the end component; the end component includes nineteen ends, i.e., Pin 1 to Pin 19; the ends of the inserted UFS card or Micro SD card can be connected with respective ends of the end component; the UFS card includes twelve ends(i.e., u1 to u12); the Micro SD card includes eight ends(i.e., m1 to m8). The beneficial effects of the present application are that: on the basis of existing UFS card connector, the ends 1-10, 11, 12 and 19 form a complete data transmission structure for the UFS card; at the same time, the ends 11-19 form a complete data transmission structure applied to the Micro SD card, so that the connector is applied to UFS cards and Micro SD cards.