Elevator door switch is a device that controls the opening and closing of elevator doors. The working principle of elevator door switch is based on the simple mechanical operation principle, and the control of the elevator system is achieved through the interaction of mechanical structure and electrical components. It plays a very important role in elevators. Depending on the type of elevator, different types of elevators such as passenger elevators, freight elevators, and escalators have different requirements for door contact switches. The elevator door controller is used to receive signals from the elevator control system, control the operation of the door motor, and thus achieve the opening and closing of doors. There are also position sensors used to detect the position status of elevator doors, such as whether they are fully open or closed, and to provide feedback to the elevator control system
Passenger elevators usually require door switches to have high reliability and safety to ensure the safety of passengers entering and exiting; Freight elevators may pay more attention to the load-bearing capacity and durability of door switches, as they often handle heavier goods and have a greater impact on the doors; The door switch of the escalator needs to be coordinated with the running speed and rhythm of the escalator to ensure that passengers can safely and smoothly get on and off the escalator.
