Device and method for control of automatic opening and closing of washing machine upper cover

Abstract

The invention provides a device and method for control of automatic opening and closing of a washing machine upper cover. The control device comprises a control module and a detection module, wherein the control module controls forward motor rotation, backward motor rotation and motor rotation stopping which drive rotation of the upper cover; the detection module is connected to the control module, and is used to detect an obstacle existing between the upper cover and a disk base or existing on the side of the upper cover remote from the disk base, generate a corresponding obstacle signal, and send the obstacle signal to the control module, and the control module determines whether the obstacle exists according to the obstacle signal and stops the upper cover at the current position or resets the upper cover to an initial position when existence of the obstacle is determined. Whether the obstacle exits is determined according to current changes on a motor inner coil, so pinching of a user and burning damage caused by long-term blocking rotation of a motor can be avoided. The invention also discloses a method for opening or closing the upper cover with combination of manual and automatic modes, so the probability in the user pinching is reduced, and force needed to open or close the upper cover manually is reduced.

Description

technical field [0001] The invention relates to the technical field related to the automatic switch control of the upper cover of a washing machine, in particular to an automatic switch control device and method for the upper cover of a washing machine. Background technique [0002] The existing washing machine loam cake opening or closing mode mainly comprises two kinds, automatic mode and manual mode. Among them, the automatic method is to use the motor to drive the upper cover to rotate to open or close the upper cover. In this way, there is no protective measure during the closing process of the upper cover. If the user's fingers or other parts are placed between the tray seat and the upper cover of the washing machine, the There is a high possibility of pinching the user's finger or arm when the cover is closed, causing personal injury to the user. [0003] If there is an obstacle on the upper cover of the washing machine or between the upper cover and the disc seat, i...

AI Technical Summary

Problems solved by technology

Among them, the automatic method is to use the motor to drive the upper cover to rotate to open or close the upper cover. In this way, there is no protective measure during the closing process of the upper cover. If the user's fingers or other parts are placed between the tray seat and the upper cover of the washing machine, the When the cover is closed, it is likely to pinch the user's finger or arm, etc., causing personal injury to the user

[0003] If there is an obstacle on the upper cover of the washing machine or between the upper cover and the disc seat, if the upper cover is continued to be opened or closed automatically, the motor will stall when it encounters an obstacle, and the current on the inner coil of the motor will become larger , if the obstacle is not removed in time, the motor may be burned out, which increases unnecessary maintenance costs

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