Schalteinrichtung mit einem Bauteil aus einer Formgedächtnis-Legierung und mit Mitteln zu dessen Erwärmung sowie entsprechende Verbindungstechnik

摘要

The switching device (10), especially a circuit breaker, has a component (2) which consists of a shape memory alloy and means for indirectly heating the component, in the form of at least one heating conductor element (3). This element is mounted on a flat side (f) of the component (2), where it takes up at least 40 % of the surface of this flat side (f) that is deformable during a switching process. These parts (2, 3) should be joined by means of a spot welding technique (4i) using electrodes consisting of a Cu alloy.