Lever Connector Rotation Restriction for Half-Fitting Prevention
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Solution Overview
Problem
Conventional lever type connectors often suffer from incomplete fitting during assembly, leading to potential deformation of components and insufficient terminal conduction due to improper rotation of the lever, resulting in half-fitting issues.
Innovation Solution
Incorporating restricting portions on both the lever and receptacle connector that interfere with each other until the connector holder reaches the standby position, preventing premature rotation and ensuring complete coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the lever is allowed to rotate freely during assembly, then the assembly process is simple and fast, but the lever may rotate prematurely causing component deformation or damage
Solution Approach 1:
The restricting portion on the lever and the corresponding restricting portion on the receptacle connector create a preliminary constraint that prevents the lever from rotating before the connector holder reaches the standby position. This preliminary anti-action ensures that the lever only rotates when properly positioned, preventing premature rotation and component damage while maintaining assembly simplicity
2Reliability
If the lever rotation is restricted until standby position is reached, then component deformation is prevented, but the structure becomes more complex
Solution Approach 1:
The restricting portions are integrated into the existing lever and receptacle connector structures without requiring separate components. The restriction function is merged with the fitting structure itself, preventing lever rotation before standby position while maintaining a simple and rational overall structure
Solution Approach 2:
The restricting portions serve multiple functions: they prevent premature lever rotation, guide the connector holder to the correct standby position, and ensure proper alignment before coupling. This multi-functionality reduces the need for additional components and simplifies the overall structure
3Ease of operation
If the lever rotates before complete fitting, then assembly is easier, but half-fitting occurs causing insufficient terminal conduction
Solution Approach 1:
The restricting portions perform a preliminary action by preventing lever rotation until the connector holder reaches the standby position. This ensures that the fitting process is completed accurately before the lever rotates to lock the connection, preventing half-fitting and ensuring sufficient terminal conduction
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
This solution prevents damage to the connector components, ensures firm coupling of the connector holder and receptacle, and prevents half-fitting, while maintaining a simple and cost-effective mechanical structure with enhanced mechanical strength.
Implementation Method 1
a lever and a receptacle connector respectively include restricting portions which interfere with each other until a connector holder reaches a standby position so as to restrict rotation of the lever
Implementation Method 2
the connector holder is pushed down to the side of the receptacle connector by the principle of leverage
Data Source
AI summary
A lever type connector in which a connector holder is reliably fit into a receptacle holder to prevent a half-fitting is provided. In the lever type connector, a restricting recess is provided on the front side of an arm plate of a lever, and below a multiple force recess. When a connector holder is inserted into the receptacle, a rear surface of the restricting recess abuts to a rear surface of a receiving portion to restrict rotation of the lever. Then, when the connector holder is pushed down to the standby position where the receiving portion is inserted into the multiple force recess, the restricting recess is away from the rear surface of the receiving portion, so that restriction of rotation of the lever is cancelled.