ZIF Connector Hook Projection Prevents Slantwise Insertion
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Solution Overview
Problem
Conventional connectors allow slantwise insertion of plug connectors, leading to incomplete electrical connections and application errors due to uneven locking of engagement pins, as hooks on the receptacle connector may not engage all pins properly when the plug is inserted at an angle.
Innovation Solution
The addition of a projection on the hooks of the receptacle connector ensures that if the plug connector is not inserted parallel, the projection strikes the engagement pin, preventing further rotation of the hooks and shaft, thus ensuring complete insertion and locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plug connector is inserted slantwise into the receptacle connector, then the insertion operation is completed, but the electrical connection becomes incomplete and application errors occur due to uneven locking of engagement pins
Solution Approach 1:
The projection on the hook performs preliminary anti-action by striking the engagement pin when the plug connector is inserted slantwise, preventing the shaft from rotating and the hook from locking. This counteracts the harmful slantwise insertion before it can result in incomplete electrical connection, thereby maintaining reliability while allowing ease of operation for proper parallel insertion
2Strength
If the shaft is rotated to lock the engagement pins, then the connectors are locked, but slantwise insertion is not prevented and may result in incomplete engagement
Solution Approach 1:
The projection on the hook performs preliminary action by detecting slantwise insertion and striking the engagement pin before the shaft rotation and locking process completes. This preliminary detection and prevention mechanism ensures that only properly aligned connectors can proceed to the locking stage, thereby maintaining both locking strength and engagement precision
3Reliability
If the hooks are designed to engage engagement pins, then locking is achieved, but slantwise insertion is not detected and may proceed to incomplete connection
Solution Approach 1:
The projection on the hook acts as a mechanical indicator that changes the state of the locking mechanism based on insertion alignment. When slantwise insertion occurs, the projection strikes the engagement pin and prevents shaft rotation, providing a detectable mechanical signal that insertion alignment is incorrect, thereby solving the detection difficulty while maintaining locking reliability
Data Source
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AI summary
A multicore connector having a ZIF structure prevents a plug connector (1) from being inserted and fitted in a receptacle connector (2) and locked in a slanted state. A plug engagement pin (1-1) provided on each side of the plug connector (1) is inserted into an engagement section of a hook (2-3-2) and locked there when the shaft is rotated. The hook is fixed to a rotatable shaft provided for the receptacle connector (2) and includes a projection (2-3-2-1). If the plug connector (1) is inserted in a slanted state, the projection (2-3-2-1) of the hook (3-2-2) prevents the pin (11) from being rotated.