Automatic electricity-saving device for elevator

Abstract

The invention relates to an automatic energy saver of lifter, wherein it comprises mechanical sensor, time setting switch and connecting lines; said mechanical is weighting type mounted at the entrance of lifter; when user steps on it, it will generate drawing force, via connecting line to rotate the time setting switch, and the lifter will rotate, and when the lifter is empty, lifter will stop. The time set by switch should be same as the time of one loop of lifter; and the switch has continuous trigger function, while each trigger will return to former time. The invention also can use pyroelectric infrared detecting mould and the delay relay with continuous trigger function.

Description

technical field [0001] The invention relates to a power saving device which can automatically control the start and stop of an elevator. Background technique [0002] Known rotary elevators all start at the same time and run for a long time. In the process of running, many times there is no one going up and down, but the elevator is still idling. These elevators are generally installed in public places such as shopping malls, supermarkets, stations, and subways. However, the utilization efficiency of elevators in many places is very low, some with a utilization rate of only 10 to 20%, and elevators all use high-power motors. There are so many elevators in the whole society, causing huge energy waste every day. The elevator automatic energy-saving device is to solve the problem of the idling of the elevator, that is, when someone walks to the elevator entrance to get on the elevator, the elevator will automatically rotate, and when there is no one on the elevator, the elevat...

AI Technical Summary

Problems solved by technology

However, the utilization efficiency of elevators in many places is very low, and some elevators use high-power motors. There are so many elevators in the whole society, which cause huge energy waste every day.