Patent ID: 8446049

Claim:
An electronic apparatus for conditionally power supplying, comprising: a case, accommodating an electronic circuit and a power module therein, and the power module supplying power to the electronic circuit; an external connection port, embedded on a surface of the case for connecting an external device to the electronic apparatus, and comprising a plurality of exposed terminals exposed on the surface, in which one of the exposed terminals is a power pin; a first detection electrode and a second detection electrode, respectively disposed on the surface of the case, wherein the electronic apparatus is arranged such that power is supplied to at least one of the first detection electrode and the second detection electrode, the first detection electrode and the second detection electrode are separated by a gap and normally maintain in broken-circuit, and the first detection electrode and the second detection electrode are in short-circuit when being in a wet condition; a switch, disposed inside the case, and electrically connected between the power module and the power pin; and a control module, disposed inside the case, electrically connected to the first detection electrode and the second detection electrode, and for driving the switch, wherein the electronic apparatus is arranged such that the control module detects that the first detection electrode and the second detection electrode are in short-circuit or in broken-circuit, and drives the switch to make the power module output power to the power pin when the first detection electrode and the second detection electrode are in broken-circuit.