Electricity-saving circuit of rice cooker

Abstract

The invention relates to an energy-saving circuit of electric cooker, for resolving the defects of waste energy in present electric cookers. The invention comprises a main circuit, a direct-current constant voltage power supply circuit, a temperature detecting circuit, a delay circuit, and a driving converting circuit. The invention uses a temperature sensor to collect the temperature of an air outlet of the electric cooker, via the temperature detecting circuit to be converted into direct current level changing along the temperature. When boiling gruel, the temperature detecting circuit outputs high current level to directly drive the main circuit which will hold lower output voltage to keep steaming temperature in the cooker. And when boiling dry food, the high current level output from the temperature detecting circuit will trigger the delay circuit, via the driving converting circuit to cut off the main circuit for some time, and return power when reaches the delay time, to save energy.

Description

technical field [0001] The invention belongs to the field of household appliance control, in particular to a power-saving circuit of an electric rice cooker. Background technique [0002] Most of the existing rice cookers have some common problems: they can only cook dry rice, but cannot cook porridge or other foods that need to be stewed, such as pig’s knuckles, etc. Diode, when cooking porridge with half pressure, it will fall out as usual); when cooking dry rice, it will continue to burn until it trips, and the rice soup solution in the rice cooker will also keep falling. This process takes about five minutes, which not only wastes electric energy, but also It is easy to cause the soup to overflow, which is very unhygienic. Some high-end rice cookers can avoid these problems, but the function setting procedures are troublesome, and the price is relatively high, so most families do not use them. Contents of the invention [0003] The object of the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing rice cookers have some common problems: they can only cook dry rice, but cannot cook porridge or other foods that need to be stewed, such as pig’s knuckles, etc. Diode, when cooking porridge with half pressure, it will fall out as usual); when cooking dry rice, it will continue to burn until it trips, and the rice soup solution in the rice cooker will also keep falling. This process takes about five minutes, which not only wastes electric energy, but also It is easy to cause the soup to overflow, which is very unhygienic

Some high-end rice cookers can avoid these problems, but the function setting procedures are troublesome, and the price is relatively high, and most families do not use them

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