Control circuit for electric heating kettle, and electric heating kettle

Abstract

The invention discloses a control circuit for an electric heating kettle, and the electric heating kettle. The electric heating kettle comprises a kettle body and a base. The control circuit comprises a detection circuit and a working loop, wherein the working loop comprises an upper coupler and a lower coupler, the upper coupler is arranged on the kettle body, the lower coupler is arranged on the base, and the detection circuit comprises a controller and an optocoupler circuit; the optocoupler circuit is connected with the working loop, the upper coupler is coupled with the lower coupler, and the optocoupler circuit is conducted to output a detection signal; and the input end of the controller is connected with the output end of the optocoupler circuit, and the the controller is used for acquiring the detection signal to judge whether the working loop is connected or not. The control circuit for the electric heating kettle can accurately detect whether the working loop is switched on or not while saving the cost.

Description

technical field [0001] The invention belongs to the technical field of electric heating pots, and in particular relates to a control circuit for electric heating pots and electric heating pots. Background technique [0002] With the development of science and technology, more and more cooking utensils appear, which provides great convenience for the life of users. For example, electric heating pots appearing on the market can have functions such as boiling water, heating milk, and making tea, and one pot can be used for multiple purposes. [0003] In the existing electric heating kettle, the kettle body is generally connected with the main control board through a coupler. However, in some existing electric heating kettles, the control board cannot detect whether the kettle body has been placed on the base, that is, it cannot sense whether the upper coupler arranged on the kettle body is coupled to the lower coupler arranged on the base. Therefore, if the pot body is not pl...

AI Technical Summary

Problems solved by technology

However, in some existing electric heating pots, the control board cannot detect whether the pot body has been placed on the base, that is, it cannot sense whether the upper coupler on the pot body is coupled to the lower coupler on the base.

Therefore, if the pot body is not placed on the base, that is, when the upper coupler and the lower coupler are not coupled and connected, if the user triggers the switch button at this time, it is likely to trigger actions such as adding water and heating, and the control accuracy of the entire circuit is not high. prone to electric shock accidents

Images