Air door zero returning resetting control method and device, and equipment

Abstract

The invention discloses an air door zero returning resetting control method and device, and equipment provided with the control device. The air door zero returning resetting control method includes the steps that whether the state of an air door meets zero returning resetting conditions or not is judged; if the state of the air door meets the zero returning resetting conditions, the current stop position of the air door is obtained; according to the current stop position of the air door, a zero returning resetting stroke is worked out; and zero returning resetting of the air door is controlledaccording to the zero returning resetting stroke. Zero returning resetting can be carried out in time, the position control accuracy of the air door is improved, the impact force on components causedby zero returning is reduced, and zero returning is prevented from influencing the service life and performance of products.

Description

technical field [0001] The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to a method for controlling a damper to return to zero and reset, a control device for controlling a damper to return to zero and equipment with the control device. Background technique [0002] For equipment with dampers such as refrigerators and freezers, the dampers usually only move at a few fixed air outlet positions. Long-term operation may easily cause position deviation. [0003] At present, the damper is reset to zero through the damper calibration program after the device is powered on or after a certain period of time, but the calibration scheme is to apply the full-scale maximum excitation pulse to the damper. With the current zero return and reset method, on the one hand, if the damper is easy to freeze or position shifts before the zero return operation, there is nothing to do during the idle period; on the other hand, regardless of...

AI Technical Summary

Problems solved by technology

[0002] For equipment with dampers such as refrigerators, freezers, etc., the dampers usually only move at a few fixed air outlet positions, and long-term operation can easily cause position deviation

[0003] At present, the damper is reset to zero through the damper calibration program after the device is powered on or after a certain period of time, but the calibration scheme is to apply the full-scale maximum excitation pulse to the damper

With the current zero return and reset method, on the one hand, if the damper is easy to freeze or position shifts before the zero return operation, there is nothing to do during the idle period; on the other hand, regardless of the current stop position of the damper, The fixed maximum range pulse is easy to cause unnecessary impact on the components and affect the life and performance of the product

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