To provide a drinking water supplying device which can conduct sterilization at a timing easy for bacteria to invade and can efficiently purify drinking water.
The drinking water supplying device comprises a container 1 filled with drinking water such as tap water and arranged removably, a water cooler 22 which cools the drinking water introduced from the container 1, a sterilizer 5 which is installed in the water cooler 22 and sterilizes the drinking water in the water cooler 22, a cool water valve 23 which controls the supply and stop of supply of the drinking water in the water cooler 22, a container detector 4 which detects whether the container 1 has been removed or not, and a microcomputer 6 which, after the removal state of the container 1 has been detected by the container detector 4, makes control to drive the sterilizer 5 for a predetermined period of time. Due to this configuration, since the sterilizer 5 activates in the state where the container 1 is removed, namely, bacteria are easy to invade into the water cooler 22, the sterilizer 5 can kill the invading bacteria at a good timing.
SATO MOTOHARU
ITO MIWAKO
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