Lever Connector Thick Wall Inclination Correction
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Solution Overview
Problem
Conventional lever engaging type connectors experience inclination issues during engagement, leading to non-coaxial terminal alignment, excessive friction, and potential backlash, resulting in inefficient and unstable electrical connections.
Innovation Solution
A lever engaging type connector design that incorporates a thick wall part on the lever to correct the inclination of the male connector, ensuring parallel alignment with the female connector, utilizing a pivot projection and receiving groove system to facilitate smooth coaxial engagement without excessive stress and preventing backlash.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lever is rotated using the conventional pivot projection and hole positioning system, then the male connector can be engaged with the female connector, but the male connector becomes inclined and terminals fail to engage coaxially
Solution Approach 1:
The pivot projection receiving groove is designed to guide the pivot projection into a correct positional relationship with the boss part before the lever rotation is completed. This preliminary positioning action ensures that the male connector is properly aligned parallel to the female connector during the engagement process, preventing inclination and enabling coaxial terminal engagement from the outset rather than requiring post-adjustment.
2Ease of operation
If the lever rotation causes the male connector to float up, then the operating part side disconnects from the female connector, but this creates uneven engagement depth and increases friction
Solution Approach 1:
The pivot projection receiving groove performs a preliminary alignment function that maintains continuous contact between the male and female connectors throughout the lever rotation. By guiding the pivot projection into the groove, the system prevents the male connector from floating up and ensures uniform engagement depth of all terminals, thereby minimizing frictional resistance during the engagement operation.
3Ease of manufacture
If clearance is provided for pivot projection positioning, then assembly is facilitated, but backlash occurs between the male connector and lever after engagement
Solution Approach 1:
The pivot projection receiving groove provides preliminary positioning that accommodates manufacturing clearances during assembly, while simultaneously constraining the relative positions of the male connector and lever after engagement. The groove geometry allows easy assembly by guiding components into place, yet maintains stable connection by preventing excessive movement or backlash once engaged.
Data Source
AI summary
To enable a male connector and a female connector to be opposed to each other in parallel, at least when female terminals and male terminals of the respective connectors start to be connected, so that engagement of the male terminals with the female terminals can be smoothly and coaxially performed, without applying excessive stress to each other, a thick wall part 40 protruding toward an upper face of a male connector 2 is formed in a part of a lower face of a lever 1 opposed to the upper face of the male connector 2.