Method and device for weighing clothes in washing machine

Abstract

An embodiment of the invention provides a method and a device for weighing clothes in a washing machine and relates to the technical field of washing machines. By the method and the device, automatic clothes weighing can be achieved while clothes weighing precision of the washing machine can be improved and power consumption of a CPU (central processing unit) can be lowered. The washing machine has N rated spinning speeds (N is an integer larger than or equal to 2). The method for weighing clothes in the washing machine includes respectively acquiring work current of a motor under each rated spinning speed when the washing machine spins at N rated spinning speeds; according to corresponding relations among the rated spinning speed, the work current and load weight, respectively acquiring the load weight corresponding to the work current of the motor under each rated spinning speed of the washing machine; and acquiring weight of clothes in the washing machine according to the N load weights. The method and the device are applied to automatic weighing of clothes in the washing machine.

Description

technical field [0001] The present invention relates to the technical field of washing machines, and in particular, to a weighing method and device for washing machines. Background technique [0002] With the improvement of people's living standards, the performance requirements for washing machines are getting higher and higher. Energy saving, environmental protection and intelligence have become several important factors that people consider when purchasing washing machines. Since the weight of the clothes in the washing machine determines the water consumption and washing time of the washing machine, and the water consumption and washing time of the washing machine directly affect the washing effect, water consumption and power consumption of the washing machine, the accurate weight of the clothes in the washing machine becomes the washing machine. The key point to achieve energy saving, environmental protection and intelligence, so how to automatically determine the weig...

AI Technical Summary

Problems solved by technology

[0004] When the above method is used to calculate the load weight, the working current of the motor is not obtained under the condition that the speed of the motor is uniform, and then the electric energy consumed by the motor is obtained, but when the motor rises from the first predetermined speed to the second predetermined speed , if the speed rises too fast, it is easy to cause a sudden change in the working current of the motor. Since the change of current directly affects the change of electric energy, it will lead to inaccurate calculation of the electric energy consumed by the motor during the rising process, which will lead to the obtained load weight. big error

And in the process of the motor rising from the first predetermined speed to the second predetermined speed, the CPU needs to continuously calculate the electric energy consumed by the motor, which will increase the power consumption of the CPU, thereby affecting the processing efficiency of the CPU

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