Washing machine and barrel collision detection method and device of washing machine

Abstract

The invention discloses a washing machine and a barrel collision detection method and device of the washing machine. The barrel collision detection method includes the steps that the rotating speed of an inner barrel of the washing machine is detected; when the rotating speed of the inner barrel reaches the preset barrel collision detection rotating speed, the change rate of the rotating speed of the inner barrel within preset time is acquired; whether the inner barrel is subjected to a barrel collision or not is judged according to the change rate of the rotating speed of the inner barrel within the preset time. Thus, the barrel collision can be more timely and accurately detected by detecting the change rate of the rotating speed of the inner barrel, the problem that the barrel collision cannot be detected due to the conditions such as diagonal eccentricity and avoiding of a barrel collision switch is solved, and a box body of the washing machine is prevented from displacing seriously.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a washing machine barrel collision detection method, a washing machine barrel collision detection device and a washing machine. Background technique [0002] When related washing machines are dehydrating or washing, the inner tub of the washing machine is prone to offset due to uneven load distribution. If the offset is too large, the outer tub collides with the washing machine cabinet, that is, barrel collision occurs. In the related art, the drum bump detection is usually performed by setting a drum bump switch in the washing machine. However, the problem in the related art is that because there is only one barrel bump switch and it is set at a fixed position, it is difficult to detect the barrel bump state when the inner barrel produces some specific eccentricity, such as diagonal eccentricity, or when the inner barrel avoids the barrel bumping process. It is al...

AI Technical Summary

Problems solved by technology

However, the problem in the related art is that because there is only one barrel bump switch and it is set at a fixed position, it is difficult to detect the barrel bump state when the inner barrel produces some specific eccentricity, such as diagonal eccentricity, or when the inner barrel avoids the barrel bumping process. When the switch is on and off, it is also impossible to detect the bumping of the bucket, which may cause the cabinet to move, or even the water valve to fall off, causing damage to the washing machine

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