Liquid metal-containing self-recovering current limiter has structured internal electrode faces for increased surface area wetted by liquid metal

摘要

A self-recovering current limiter includes structured internal electrode faces (6) for increased surface area wetted by liquid metal (7). A liquid metal-containing self-recovering current limiter comprises one or more compression spaces (4) which are partially filled with liquid metal and which are arranged between solid metal electrodes (1) connected to a circuit to be protected, the spaces being delimited by pressure-tight insulating bodies (5, 11). The electrodes (1) are structured for surface area enlargement at their inner faces (6) wetted by the liquid metal (7). Preferred Features: The liquid metal (7) consists of a gallium indium tin (GaInSn) alloy.