Automatic control alarm system for overtemperature

• Main Author: WEN YANNI
• Format: Patent
• Language: English
• Published: 22.04.2015
• Subjects: ALARM SYSTEMS; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS

The invention relates to an automatic control alarm system for overtemperature. The system comprises a semiconductor element, soft ferromagnetic elements, copper coils, a battery, a thermo-sensitive element, a pressure-sensitive element, an adjustable resistor, an audion, a switch and a music module. The semiconductor element is located between the two identical soft ferromagnetic elements, the soft ferromagnetic elements are placed in the two symmetrical copper coils, the battery can supply power to the copper coils to generate the Hall effect, the thermo-sensitive element is connected between the semiconductor element and the positive pole of the battery, the electric potentials at the two ends in the Hall effect are exerted on the pressure-sensitive element, the switch is located between the positive pole of the battery and the high electric potential end of the Hall effect, a first pin and a second pin of the music module are connected between the high electric potential end of the Hall effect and the switch, a third pin of the music module is connected with the collector electrode of the audion, the adjustable resistor is connected between the low electric potential end of the Hall effect and the emitting electrode of the audion, and the base electrode of the audion is connected with the low electric potential end of the Hall effect.