EV Charging Cable-Housing Interface for Moisture-Resistant Connection

The patent applies dimensionality change by transitioning from a flat interface to a three-dimensional profiled interface. The projection extends beyond the housing exterior surface by 3-8 mm with a width of 1.5-3 mm, creating a raised barrier that physically blocks moisture ingress. This dimensional elevation transforms a two-dimensional sealing problem into a three-dimensional protective structure, effectively preventing moisture and humidity from reaching the socket while maintaining charging reliability.

The patent implements preliminary anti-action by designing the projection to preemptively block moisture and humidity before they can ingress into the socket. The projection acts as a preventive barrier that stops harmful environmental factors at the interface level, eliminating the need for complex internal sealing mechanisms and ensuring charging integrity from the outset.

The patent extracts the harmful elements (barbs and ribs) from the projection design while retaining the essential moisture-blocking function. By removing these aggressive features, the design achieves moisture resistance through the projection's dimensional presence alone, simplifying manufacturing and reducing damage potential while maintaining reliability.

The patent applies local quality by concentrating the moisture protection function in the projection's elevated dimension rather than distributing it through complex surface features like barbs and ribs. The projection's height and width create a localized barrier that effectively prevents moisture ingress without requiring additional structural complexities, making the design both manufacturable and reliable.