Conductivity Measurement Method for Reducing Conductor Oxidation

Abstract

A conductivity measurement method for slowing down the oxidation of conductors, which is applied to the water quality sensor in the washing space inside the washing machine. The water quality sensor is equipped with a control unit inside, and the control unit is electrically connected to the first part exposed to the washing space to contact the water. A conductor and a second conductor, and in actual application, the potentials of the first conductor and the second conductor are alternately changed through the control unit to slow down the oxidation and the oxidation of the first conductor and the second conductor at high potential due to polarization Rust enables the control unit to accurately measure the conductivity of the water between the first conductor and the second conductor, so that the electric washing machine can decide whether to continue the washing operation according to the cleanliness of the water in the washing space.

Description

technical field [0001] The invention discloses a conductivity measurement method for slowing down the oxidation of conductors, especially a water quality sensor applied to the washing space inside washing appliances, and the potentials of the first conductor and the second conductor are changed in phase through the control unit during use, so as to It is used to slow down the oxidation phenomenon generated when the first conductor and the second conductor are at high potential due to polarization. Background technique [0002] Press, with the development of modern science and technology, many home appliances that provide people with comfort and convenience come out, so that people can use different home appliances in their lives to quickly process tasks that used to take time and energy. Among them, in general home appliances, some washing appliances that need to be connected to water sources, such as washing machines, dishwashers, etc., use water liquid to cooperate with cl...

AI Technical Summary

Problems solved by technology

[0004] However, when the control unit uses a single-phase energization between the two conductors to measure the conductivity in the water, the single-phase energization will cause the two conductors to undergo a polarization reaction (polarization), that is, the high-potential conductor will be oxidized due to the loss of electrons. Oxidation, low-potential conductors get electrons to produce reduction phenomenon (reduction), and cause high-potential conductors to rust under long-term energization, which in turn affects the strength of the output current of high-potential conductors, and causes control unit The wrong water conductivity is measured between the two conductors, and it is impossible for the washing machine to accurately judge the cleanliness of the water in the washing space to decide whether to continue the washing operation

[0005] Therefore, how to solve the problem that the control unit measures the wrong conductivity in the water due to the single-phase energization of the two conductors is the direction that relevant manufacturers engaged in this industry want to study and improve.

Images