Electronic damper control method and device

Abstract

The invention provides a control method and device of an electronic air door. The control method of the electronic air door comprises the steps of acquiring a control command used for controlling the electronic air door; driving the electronic air door to perform opening and closing action according to the control command; detecting the temperature variation trend in a chamber of which the air is supplied from the electronic air door; judging whether the temperature variation trend is matched with a temperature regulation objective of the opening and closing action or not; and if not, controlling the electronic air door to perform reset action. According to the control method and device of the electronic air door, after the electronic air door is driven to perform the opening and closing action, the temperature variation trend in the chamber of which the air is supplied from the electronic air door is detected, whether the temperature variation trend conforms to the temperature regulation objective of the electronic air door action or not is judged, and when the temperature variation trend does not conform to the temperature regulation objective of the electronic air door action, the electronic air door is driven to perform reset action, so that the situation that the refrigeration of an air-cooled refrigerator is influenced by abnormal air supply due to the fact that the air door does not move in place is avoided, and the reliability of the electronic air door is improved.

Description

Technical field [0001] The invention relates to the control of household electrical appliances, in particular to a method and device for controlling an electronic damper. Background technique [0002] With the popularization of air-cooled refrigerators, electronic dampers are more and more widely used in refrigerators. The electronic air door uses a stepping motor to drive the air door baffle through a gear reduction to achieve air supply control to the compartment that needs cooling. [0003] From the closed state to the opening of the damper, the stepper motor is required to perform a fixed number of running steps. Similarly, the stepper motor is required to run a fixed number of steps in the opposite direction from opening to closing. In the prior art, when the compartment needs to be cooled, the control board controls the stepper motor to open the damper according to the number of steps opened; when the compartment does not require cooling, the control board controls the stepp...

AI Technical Summary

Problems solved by technology

Since the electronic damper itself generally does not have a dedicated position sensor, it cannot sense whether the damper has moved to the required position

If the damper does not operate properly, it will affect the air supply control of the cooling room, resulting in the cooling unable to meet the demand

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