Kettle capable of regulating temperature and preserving heat in poweroff

Abstract

The invention discloses a kettle capable of regulating temperature and preserving heat in poweroff. A PTC heating element 4 is used for heating; by utilizing the characteristic that the higher the temperature of the PTC thermistor 4 is, the larger the resistance will be, the resistance value is rapidly increased after water boils, and thus the function of cutting off current for automatic poweroffis achieved. On this basis, a vacuum double-layer stainless heat preservation structure is designed for the electric kettle so that the water temperature can be maintained for a period of time afterpoweroff, and the function is the most significant feature of the kettle; a temperature control switch 6 is designed for controlling the temperature so that heating can be conducted within a certain temperature range.

Description

1. Technical field: [0001] The invention relates to an electric kettle that can realize power-off heat preservation and temperature-controlled heating, and can be widely used in the home market. The convenience of power-off heat preservation and temperature-controlled heating will be used in a wide range after specific applications, and can be used for users who need different water temperatures. Brings a convenient and safe electricity environment. 2. Background technology: [0002] The electric kettle is basically a process from the development of kettle heat preservation to the use of electricity to heat water. The structure is relatively simple, but all electrical appliances are in the process of continuous development and improvement. Now there is not only water boiling in life. Afterwards, the function of automatic power-on heating and heat preservation is added, and safety designs such as child locks are added, such as the special yellow warning lock cover, which is h...

AI Technical Summary

Problems solved by technology

[0003] However, ordinary electric kettles only have the function of boiling water, and cannot achieve long-term heat preservation after the water is boiled. If long-term heat preservation is required, there are generally two measures: the first is to transfer the boiled water to the thermos bottle, and during the transfer process If the grasp is not in place, it is easy to cause splashing and pouring of boiling water, and because the thermos bottle is easy to expand with heat and contract with cold (especially in winter and summer), it will cause blasting, splashing and scalding accidents. It is very unsafe to have old people and children at home; The water that has been cooled is heated repeatedly. The direct consequence of this method is to cause mineral precipitation in the water and the concentration of nitrite is too high, which is often called thousands of boiling water, which is directly harmful to human

Images