Liquid heater

The utility model relates to the field of small household appliances, in particular to a liquid heater. The electric kettle comprises a kettle body assembly and a power supply base provided with a lower coupler, a stirring shaft is arranged on the kettle body assembly, a driving shaft driven by a motor is arranged on the power supply base, the driving shaft upwards penetrates through the lower coupler to be in transmission connection with the stirring shaft, the power supply base comprises an upper cover and a lower cover, and a through hole used for installing the lower coupler is formed in the upper cover. A support is arranged on the power source base, the lower coupler is connected with the support and clamps the upper cover, the motor is fixed to the lower end of the support, an avoiding hole is formed in the support, the driving shaft upwards penetrates through the avoiding hole, a limiting rib is arranged at the lower end of the upper cover, and the limiting rib abuts against the edge of the support so