Lock Arm Connector Layout for Compact Fit Detection
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Solution Overview
Problem
Existing connectors with detection members face challenges in maintaining size efficiency due to the placement of these members, which can lead to increased dimensions in both the vertical and front/rear directions.
Innovation Solution
A connector design where the detection member is positioned on one side surface of the lock arm, allowing it to move between side surfaces when the housings are properly fitted, with a protective wall providing both protection and a holding function, thus preventing size increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mounting groove that accommodates the detection member is arranged at the lower side of the lock lever, then the detection member can be properly positioned, but the connector becomes larger in the vertical direction
Solution Approach 1:
The detection member is repositioned from the lower side (vertical dimension) to the side surface (lateral dimension) of the lock lever. This dimensional shift allows the detection function to be maintained while eliminating the need for additional vertical space, thus preventing connector enlargement in the vertical direction.
2Ease of operation
If the handle portion is held to move the detection member, then the detection member can be operated, but the connector becomes larger in the front/rear direction
Solution Approach 1:
The handle portion that protruded into the back portion of the female housing is removed or repositioned. The detection member is made operable through alternative means that do not require a protruding handle, thereby eliminating the extension in the front/rear direction and preventing connector enlargement.
3Length of stationary object
If the detection member is arranged on the side surface of the lock arm, then the connector size is suppressed, but the detection member must move between side surfaces when housings are fitted
Solution Approach 1:
The detection member is designed with movable characteristics that allow it to transition between different positions on the lock lever as the housings are fitted. This dynamic positioning enables the detection function to be achieved at multiple locations during the fitting process, eliminating the need for complex additional mechanisms while maintaining compact connector dimensions.
Data Source
AI summary
A connector including a housing; a lock arm that holds the housing and a counterpart housing in a fitted state; and a detector that is in a state of being movable with respect to the lock arm when the housing and the counterpart housing are properly fitted, wherein: the detector is arranged at one side surface among two side surfaces of the lock arm.