TEMPERATURE-CONTROLLED SWITCH Russian patent published in 2001 - IPC

FIELD: electrical engineering; miscellaneous circuit-opening devices. SUBSTANCE: temperature- controlled switch that may be used as thermal relay in fire alarm circuit- opening equipment, as temperature controller, temperature indicator, switching member in hot-water flowmeters has case accommodating movable and fixed contacts as well as heat-sensing element fixed on movable contact; mentioned element is assigned open curvilinear figure shape memory effect and its length l is chosen from condition 0,7L ≅ 1 ≅ 1,5L, where L is length of curvilinear figure in closed state. EFFECT: improved reliability and vibration resistance; facilitated manufacture. 2 cl, 2 dwg