How do electric doors work?

In daily life, electric Doors can be seen everywhere, in the import and export of major companies, shopping malls, banks, etc. The editor’s ultimate introduction to technology is also an electric door. So do you know why electric doors can automatically sense and open the moment someone comes in? Today, Ultimate Technology will take you to understand the working principle of electric doors.

Swing automatic doors are the most commonly used electric doors now, and the door body of the swing automatic door During the opening and closing process, when a moving person or object appears in the door\’s running trajectory, the safety sensor will stop the door in time. Moreover, swing doors are not easily affected by strong wind pressure, cross airflow and pressure differences. The door is perfectly balanced even in the presence of lateral pressure; the swing door can be opened easily regardless of the adverse weather conditions. Therefore, we use swing automatic doors widely, generally used in hotels, guesthouses, enterprises and institutions.

Structure introduction of automatic doors:

1. Main controller: It is the command center of the automatic door. Through a large-scale integrated block with an internal instruction program, it issues corresponding instructions to command the motor or electric lock. The system works like this; at the same time, people adjust parameters such as door leaf opening speed and opening amplitude through the main controller.

2. Induction detector: Responsible for collecting external signals, just like people\’s eyes. When a moving object enters its working range, it sends a signal to the host. The controller has a pulse signal.

3. Power motor: provides the main force for opening and closing the door, and controls the door leaf. Accelerate and decelerate operation

4. Door leaf traveling track: Just like the rails of a train, it constrains the door leaf\’s spreader wheel system to make it travel in a specific direction.

5. Door leaf hoist wheel system: used to hang movable door leaves and drive the door leaves to run under power traction.

6. Timing belt: used to transmit the power generated by the motor and pull the door leaf spreader wheel system.

7. Lower guide system: It is the guide and positioning device for the lower part of the door leaf to prevent the door leaf from swinging forward and backward during operation.

How automatic doors work:

The basic components of automatic doors are generally the same. With the above components, plus the door-opening signal, it can be configured into a simple automatic door system, which is a control unit that can recognize the action of a person approaching the door as a door-opening signal. , a system that opens the door through a driving system, automatically closes the door after the person leaves, and controls the opening and closing process. Normally, different types of automatic doors have different working principles, as follows.

1 Working principle of automatic door sensor:

When the automatic door sensor detects someone entering, it sends a pulse signal to the main controller. After judgment, the main controller notifies the motor to run. , and monitor the motor revolutions at the same time to notify the motor to increase power and enter slow operation at a certain time. After the motor obtains a certain operating current, it runs forward and transmits the power to the synchronous belt. The synchronous belt then transmits the power to the spreader system to open the door leaf. After the door leaf is opened, the controller will make a judgment. If the door needs to be closed, the motor will be notified to reverse the operation. Move forward and close the door leaf.

2. Principle of translational automatic door:

When the induction detector detects that someone has entered, it will transmit the pulse signal to the main controller. After judgment, the main controller will notify the motor to run and monitor the number of motor revolutions for notification. The motor powers up and enters slow motion at a certain time. After the motor obtains a certain operating current, it runs forward and transmits the power to the synchronous belt. The synchronous belt then transmits the power to the spreader system to open the door leaf. After the door leaf is opened, the controller will make a judgment. If the door needs to be closed, the motor will be notified to reverse the operation. Move forward and close the door leaf.

3. Principle of infrared automatic door:

Generally, the human body has a constant body temperature, usually at 37 degrees, so it emits infrared rays with a specific wavelength of about 10UM. The infrared automatic door uses the principle of infrared reflection. There is a transmitting module and a receiving module in the circuit. The transmitting module can emit When infrared light of a certain frequency and power encounters an obstacle, it is reflected back, received by the receiving module, and processed by the circuit or microcontroller to perform the corresponding function.

After learning about it, do you know something about electric automatic doors?