Edge Connector Bottom Insertion Guide
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Solution Overview
Problem
Conventional card edge connectors require slantwise insertion and rotation of memory cards, which can be inconvenient for replacement, especially in devices like notebooks where bottom access is limited.
Innovation Solution
An edge connector design with a central slot and offset contacts allows for reverse insertion and rotation of memory modules, enabling slantwise initial insertion and subsequent horizontal alignment, facilitating easier card replacement without disassembling the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional card edge connector with slantwise insertion is used, then the connector structure is simple, but the ease of operation for card replacement is poor
Solution Approach 1:
The patent inverts the conventional insertion direction by providing a reverse insertion guide structure that allows memory cards to be inserted from the bottom of the notebook rather than from the top. The guide structure includes a guide groove and guide protrusion that direct the card insertion path, enabling users to access and replace cards from the bottom of the device where space is typically more accessible.
2Ease of operation
If bottom insertion access is provided, then the ease of operation is improved, but the connector structure becomes more complex
Solution Approach 1:
The guide groove is formed within the insulating housing structure itself, nesting the guiding function within the existing connector body. The guide protrusion on the memory card fits into this nested groove, creating a integrated guiding mechanism that adds functionality without requiring separate external guide components.
Solution Approach 2:
The patent adds a vertical dimension to the insertion path by allowing cards to be inserted from the bottom upward through the guide groove, rather than only horizontal insertion from the front. This dimensional change in the insertion trajectory enables bottom access while maintaining structural integration.
Data Source
AI summary
A compact electrical connector assembly comprises a printed circuit board having a predetermined thickness and defining a first face and a second face opposite to the first face. A low profile electrical connector sits on the first face of the printed circuit board and comprises an insulating housing defining a longitudinal central slot opened forwardly with first contacts and second contacts respectively retained at opposite sides of the central slot. A card is inserted into the central slot at an angle with regard to the printed circuit board, and then rotated from the second face to the first face of the printed circuit board until reaching to a secured position which is substantially overlapped with the printed circuit board.