Control method for roll washing machine instant open door

Abstract

The invention discloses a control method for immediately opening a door of a tumbling-box washing machine, namely a method for opening the door under the condition that the door is locked in for energization. The method essentially includes three phases as follows: a phase that a user commences the start-up of unlocking, a phase of the judgment and the execution of a washing machine system and a phase that the unlocking of the door of the washing machine is completed, wherein, the phase of the judgment and the execution of the washing machine system comprises the steps: whether water temperature is below the safe temperature is tested; whether water level is at the lower limit of water level is measured and whether a motor continues rotating is checked, wherein, the judgment and the execution of the system is passed through and the unlocking is allowed to enter the third phase if the water temperature is below the safe temperature, the water level is at the lower limit of water level and the motor stops rotating. However, if the water temperature exceeds the safe temperature or the water level is higher than the lower limit, an instruction for unlocking is cancelled. Provided that the rest two items are passed through but the motor continues rotating, whether the motor rotates is repeatedly tested till the motor stops, and then the unlocking is allowed. The control method for opening the door, provided by the invention, can not only meet the requirement of immediately opening the door for the user, but also can guarantee the personnel safety of the user to the maximum extent.

Description

technical field [0001] The invention relates to a door-opening control technology for a drum washing machine, in particular to a door-opening control method for a drum washing machine that ensures safety for users and adopts an electromagnetic door lock. Background technique [0002] Generally speaking, a drum washing machine is a device that can clean the laundry, that is to say, it can use the action of detergent and water to clean the clothes, bedding, etc. Stain removal. For this reason, the washing machine needs to be equipped with the door that is used to take and put washing. In the drum washing machine, the above-mentioned door is generally installed at the front, and a door switch is installed on the door of the drum washing machine. flow out. [0003] The door switch is a device that can lock or unlock the door of the drum washing machine. The door switch locks or unlocks the hook installed on the door according to the control signal of the control unit. In the...

AI Technical Summary

Problems solved by technology

First, due to the characteristics of PTC, the heat cannot be dropped all at once. When the user needs to open the door, it takes about 2 minutes

Second, when the machine is powered off, there is no power on the PTC door lock, and the door lock will be able to open the door after 2 minutes of power failure, and the hot water in the bucket may cause safety hazards to users

With this structure, when the drum washing machine stops driving, the switch state of the door is set according to the water level inside the drum washing machine. Although it can prevent the water in the bucket from overflowing through the door due to misoperation, it does not solve the problem of high temperature water harming the user. problem, the most important one is that it does not solve the problem that allows the user to open the door immediately

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