Backup rescue system of elevator
A backup rescue system and elevator technology, applied in the field of elevators, can solve problems such as increased volume, complex overall structure of rescue devices, and increased costs, and achieve the effects of low cost, small occupied volume, and high reliability
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] like figure 1 As shown, an elevator backup rescue system includes an elevator host 1, an elevator brake 2, a control circuit 3, a drive circuit 4, a short-circuit contactor 5, a door zone sensor 6, a door operator circuit 7 and a backup power supply 8 that can be automatically charged . The backup power supply 8 supplies power to the control circuit 3, the drive circuit 4, the elevator brake 2 and the door machine circuit 7 when the system is started. The drive circuit 4 is connected to the three-phase input end of the elevator host 1, and the short-circuit contactor 5 is used to short-circuit the elevator. The three-phase input terminal of the host 1 is kept in a normally closed state. The control loop 3 detects the signal of the rotary encoder 9 on the elevator host 1 and the signal of the door zone sensor 6 in real time, and controls the driving loop 4, the...
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