The problem the invention solves The current vacuum switchgear systems rely heavily on solid contacts, leading to high contact resistance, mechanical wear, and significant thermal energy loss. These issues necessitate complex mechanical designs and cause reliability problems in switching devices, especially for high-current applications in electric vehicles and aerospace.
The core features of the invention The invention presents gold-based liquid metal contacts with a manufacturing method focused on using gold-plated tungsten wire for flexible frameworks. These contacts exhibit near-zero contact resistance and eliminate the need for complex, high-force mechanisms.
The inventive step By introducing liquid metal contacts composed of tungsten wire coated with gold, this invention removes the need for high-temperature vacuum processing. The method is simpler, more cost-effective, and significantly reduces waste.
The tangible benefits This contact method greatly enhances the longevity and reliability of vacuum switchgear, supports higher current tolerances, and reduces device size and weight for mobile applications.
The broader impact The technology promotes sustainability in industrial applications by reducing material waste, energy consumption, and maintenance needs, offering a substantial upgrade in switchgear design and operational efficiency.