COIL CORE SHAFT OF THIN FILM BUZZER

摘要

PURPOSE: A coil core shaft of a thin film buzzer is provided to prevent faulty by preventing a coil from being peeled on a core shaft and to improve structure of the buzzer coil core shaft. CONSTITUTION: A circular recessed hole(3) formed on an outer circumference(2) of a coil core shaft(1). The circular recessed hole prevents a coil from being released while winding the coil on the coil core shaft. The circular recessed hole holds the coil to prevent deformation of a buzzer caused by separation of the coil. Thereby, the buzzer reduces faulty caused by separation of the coil through impact or drop of an electronic product. Moreover, a coil core shaft of a thin film buzzer mounted on the electronic product improves structure of the buzzer coil core shaft.