Lever-Type Connector Escaping Space Prevents Tab Exposure
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Solution Overview
Problem
Existing lever-type connectors allow the moving plate to move towards the back of the receptacle when the lever is rotated between the initial and connection positions with housings separated, exposing most tab parts and risking interference with external matters.
Innovation Solution
Incorporating an escaping space in the lever that accommodates the cam projection when the lever is rotated from the initial to the connection position, keeping the cam projection out of contact with the connecting cam surface, and utilizing a separating cam surface to maintain the moving plate at the protecting position, thereby preventing movement towards the front of the receptacle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lever is rotated between the initial position and the connection position with the housings separated, then the lever can be positioned for connection, but the moving plate moves toward the back of the receptacle causing tabs to be exposed and vulnerable to external interference
Solution Approach 1:
The escaping space is pre-formed in the lever at a position that will accommodate the cam projection during lever rotation. This preliminary structural arrangement ensures that when the lever is rotated to the connection position, the cam projection automatically moves into the escaping space, preventing it from contacting the connecting cam surface and thus preventing the moving plate from moving backward to expose the tabs.
2Power
If the cam projection contacts the connecting cam surface during lever rotation with housings separated, then the lever can provide boosting action, but the moving plate moves backward exposing tabs to external interference
Solution Approach 1:
The escaping space is designed as a separate, dedicated region within the lever structure that extracts or isolates the cam projection from the connecting cam surface during the lever rotation when housings are separated. This spatial separation prevents the cam projection from engaging the connecting cam surface, thereby eliminating the unwanted boosting action that would move the moving plate backward and expose the tabs.
3Reliability
If the lever structure includes separate movement paths for cam projection and cam pin, then the connecting and separating actions can be precisely controlled, but the lever shape becomes complex
Solution Approach 1:
The cam groove in the lever is designed to serve multiple functions: it guides the cam pin during the connecting process and also defines the escaping space that accommodates the cam projection during lever rotation when housings are separated. This multi-functional design allows the lever to maintain precise control over both connecting and separating actions while avoiding the complexity of having completely separate movement paths for the cam projection and cam pin.
Data Source
AI summary
A lever (24) mounted on a male housing (10) is formed with a connecting cam surface (29) capable of pressing a cam pin (41) of a female housing (40) while being kept out of contact with cam projections (23) in the process of rotating the lever (24) from an initial position to a connection position, and the lever (24) is formed with an escaping space (31). In the process of rotating the lever (24) from the initial position to the connection position in a state where the male housing (10) and the female housing (40) are separated and the moving plate (18) is at a protecting position, the cam projections (23) of the moving plate (18) are accommodated into the escaping space (31) while being kept out of contact with the connecting cam surface (29).