Double-temperature controlled switch circuit and electric heating kettle utilizing the double-temperature controlled switch circuit

Abstract

The invention discloses a double-temperature controlled switch circuit consisting of a temperature controlled switch A and a temperature controlled switch B, which are connected in parallel, and the acting temperatures of the temperature controlled switch A and the temperature controlled switch B are different. Different temperature controlled switches can be selected to open in the case of primary water heating and secondary heating, and the opened temperature controlled switches are automatically turned off to stop heating if the water is heated to corresponding acting temperatures. The double temperature controlled switches combined by two temperature controlled switches with different acting temperatures guarantee separate operations of primary boiling and secondary heating of the electric heating kettle so as to avoid the influences of the repeated boiling of the water body on the water quality caused during the secondary heating process.

Description

technical field [0001] The invention relates to a switch circuit, in particular to a temperature control switch circuit and an electric kettle using the temperature control switch circuit. Background technique [0002] The pace of life of modern people is getting faster and faster, the international trend of "simplicity" is on the rise, and the way people drink water is also tending to be "simple". Except that office buildings and individual families are using water dispensers to consume purified water or distilled water, most families drink boiled tap water. The instant electric kettle, which was popular in developed countries in Europe and America earlier, is also rapidly favored by domestic consumers because of its time-saving, energy-saving, beautiful, convenient and safe features. [0003] However, the disadvantage of the traditional electric kettle is that after the remaining hot water in the kettle becomes cold, it is easy to boil repeatedly when reheating, resulting...

AI Technical Summary

Problems solved by technology

[0003] However, the disadvantage of the traditional electric kettle is that after the remaining hot water in the kettle becomes cold, it is easy to boil repeatedly when reheating, resulting in the deterioration of the water quality in the kettle.

The higher-end electric kettles currently on the market have an automatic thermal insulation electric kettle, but two heating tubes need to be installed in the kettle, and the thermal insulation heating tubes are controlled separately by the thermal insulation switch, which allows the user to control whether to continue to keep warm. Its disadvantages It increases the manufacturing cost of the electric kettle, and also generates additional power consumption due to the heat preservation function

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