Card Socket Detect Terminal Perpendicular Force Design
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Solution Overview
Problem
Existing card sockets for electronic devices face issues with the card tray being pushed outward or the socket being slightly pushed outward due to the internal elasticity of the detection switch, leading to nonconformity between the tray and the set.
Innovation Solution
A card socket design with a detection switch that exerts a force perpendicular to the insertion direction, using a detect terminal with internal elasticity and an insulating part to prevent the card tray from being pushed outward, and ensuring the detect terminal does not engage the support circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detect terminal has internal elasticity to push backward when the card tray is inserted, then the card tray detection function is achieved, but the card tray may protrude outward or the card socket may be pushed outward causing nonconformity
Solution Approach 1:
The patent introduces an insulating part as an intermediary element between the detect terminal and the card tray. This insulating part serves as a mediator that transmits the pushing force from the detect terminal to the card tray while preventing direct metal-to-metal contact. The intermediary structure allows the detection function to work while eliminating the harmful pushing effect that caused alignment nonconformity.
Solution Approach 2:
The patent extracts the harmful pushing function from the detect terminal by separating the detection function from the mechanical contact function. The detect terminal retains only the elastic deformation capability for detection, while the insulating part handles the mechanical contact with the card tray. This extraction removes the source of the alignment problem while preserving the detection capability.
2Reliability
If the detect terminal is positioned to contact the card tray, then card insertion detection is enabled, but undesired current flow paths may occur between the detect terminal and support circuit board
Solution Approach 1:
The insulating part serves as an electrical intermediary that physically separates the conductive detect terminal from the card tray and support circuit board. This mediator allows mechanical force transmission while blocking electrical current paths, thus eliminating the harmful short circuit effect while maintaining the detection function.
Solution Approach 2:
The patent extracts the electrical conductivity function from the detect terminal's contact path by introducing the insulating part. The detection function is maintained through elastic deformation, while the electrical contact path is removed by the insulating barrier, preventing undesired current flow to the support circuit board.
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
Prevents the card tray from being pushed in the withdrawal direction, maintaining alignment and preventing external nonconformity, while also providing insulation to avoid undesired current flow paths.
Implementation Method 1
The detect terminal has internal elasticity such that when the card tray is withdrawn, after it has been pushed backward upon card tray insertion, it returns to its original state
Data Source
AI summary
A card socket for use in electronic devices is disclosed that can prevent the pushing of the card tray via vertical contact action of the detect terminal and switch terminal. The card socket includes a detection switch that is activated when a card tray has been inserted into the card tray insertion space of a housing in an insertion direction. The detection switch includes a detect terminal that is installed within the insertion space so that when the card tray is inserted into the insertion space the detection switch is activated. The detect terminal is configured to exert a force on the card tray in a direction that is perpendicular to the insertion direction.