Lightning protection structure of rolling door motor

• Main Authors: LIU MANFEI, LIUWANG YONGJIE, LIN JINGUI, HE YAOJIN
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The invention provides a lightning protection structure of a rolling door motor, which relates to the technical field of electric rolling doors, and comprises a motor power supply part provided with a driving motor, a first relay, a second relay and a third relay, a first normally-open switch of the first relay is connected with a first interface, close to one side of the live wire terminal, of the driving motor, a second normally-open switch of the second relay is connected with a second interface, close to one side of the live wire terminal, of the driving motor, and a third normally-open switch of the third relay is connected with a third interface, close to one side of the zero wire terminal, of the driving motor. The lightning protection device is simple in structure, the three relays are adopted, the first relay and the second relay are located at the live wire end of the motor, it is ensured that lightning protection can be conducted on the uplink and the downlink of the motor, the normally-open switch