Connector Housing Miniaturization via Unified Lock Arm Height

The patent merges the deflection support function and reverse-turn restriction function into the same height plane. The reverse-turn restricting portions are positioned at the same height as the deflection supports, allowing both functions to be achieved without increasing the connector housing height. This spatial merging resolves the contradiction between reliability and housing height.

The patent utilizes the width direction (lateral dimension) to achieve reverse-turn restriction instead of using the height direction. By positioning reverse-turn restricting portions laterally at the same height as deflection supports, the design transfers the restriction function from vertical stacking to lateral arrangement, thereby reducing housing height while maintaining functional reliability.

The deflection supports serve dual functions: providing structural support for lock arm deflection and acting as reverse-turn restricting portions. This multi-functionality eliminates the need for separate reverse-turn restricting structures that would extend the housing width, thereby achieving reverse-turn limitation without increasing connector housing area.

The patent combines the deflection support structure with reverse-turn restriction functionality by positioning receiving portions at the same height as deflection supports. This merging allows the lock arm to be restricted from reverse-turn movement without requiring additional lateral space, thus maintaining compact housing dimensions while ensuring reliability.