A control method and control device of remote switching-off of elevator without machine room

Abstract

The invention discloses a control method and control device of remote switching-off of elevator without machine room. The method uses UPS emergency power supply to exert power to the brake coil, realizes switching-off by supplying power to the brake coil and realizes switching-on by breaking power to the brake coil. The control device includes an emergency power supply UPS, a control loop, a brake coil, wherein, the control loop includes an emergency start key switch SM1, an emergency switching-off button SM2; the emergency power supply UPS is connected to the brake coil through the emergency start key switch SM1 and the emergency switching-off button SM2. The invention uses UPS emergency power supply to supply power, realizes by controlling normal power supply switching-off and breaking power switching-on to the brake coil, has advantages of simple operation, easy switching off and the like features, which does not need prodigious manpower to open during mechanical remote switching-off and does not require special switching-off spatial position.

Description

technical field [0001] The invention relates to a control method and a control device for remotely opening gates of an elevator without a machine room, in particular to a control method and a control device for remotely opening the gates of an elevator without a machine room driven by a permanent magnet synchronous motor. Background technique [0002] Since there is no machine room in the machine room-less elevator, when the elevator breaks down, the power fails, or the elevator stops in the middle of the floor and cannot move, etc., or when necessary special maintenance is carried out, it cannot be realized by manual turning device like the machine room elevator. Manually move the car. At present, for machine-room-less elevators, the mechanical brake opening system provided by the traction machine manufacturer is mostly used. It needs to manually open the brake through a specific steel wire rope. Although this method can achieve the purpose, there are problems in actual use...

AI Technical Summary

Problems solved by technology

At present, for machine-room-less elevators, the mechanical brake opening system provided by the traction machine manufacturer is mostly used. It needs to manually open the brake through a specific steel wire rope. Considerable deficiencies, such as: the mechanical opening wire is not allowed to have too much bending, too much bending will cause the internal resistance of the opening wire to increase, and because the internal resistance of the mechanical opening wire itself is very large, resulting in a Difficult, the reset is not in place, so that the brake can not be opened or reset normally, there is a great safety hazard; and it is impossible to detect the necessary safety status, such as whether all the doors are closed, etc.

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