Kettle lifting detection circuit for electric kettle and electric kettle

Abstract

The invention relates to a kettle lifting detection circuit for an electric kettle and the electric kettle. The kettle lifting detection circuit comprises a master controller, a switch tube and a photoelectric induction assembly. The first end of the switch tube is connected to an external power supply port, the control end of the switch tube is connected to a signal end, the second end of the switch tube is connected to one end of the photoelectric induction assembly, the other end of the photoelectric induction assembly is connected to the master controller, and the master controller is connected to a water pump. The switch tube is stopped by means of a level given by the signal end when the electric kettle is in a standby state, and the standby power consumption can be reduced in this way. When the electric kettle is in a normal operating state, the switch tube is conducted by means of the level given by the signal end. When the photoelectric induction assembly is not blocked by a ring sheet at the bottom of the kettle, that is, the kettle is lifted, the photoelectric induction assembly is conducted to output corresponding level to the master controller, the master controller judges the kettle lifting state according to the level to control the water pump to stop water effluent timely, so that a coupler is not affected and the kettle lifting detection circuit is high in reliability.

Description

technical field [0001] The present application relates to the technical field of detection and control, in particular to an electric kettle lift detection circuit and an electric kettle. Background technique [0002] Electric kettles are now a common household appliance in our lives. Many electric kettles on the market now use water pumps to pump water from the bottom of the electric kettle. If the electric kettle is lifted during the pumping process, the water pump should stop working immediately, otherwise the water will flow from the pump If there is an overflow in the middle, the overflowing water will remain on the coupler. There is a strong current on the coupler, so there is a risk of short circuit on the coupler. Therefore, it is very important to detect the electric kettle and turn off the corresponding load quickly. [0003] The traditional method usually uses the temperature sensing package device to carry out pot detection. Due to the delay in the NTC resistance ...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a highly reliable electric kettle lifting detection circuit and electric kettle detection circuit for the low reliability of the traditional detection of the kettle.

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