Liquid presence detecting device functioning also as power supply, and air improving device having the same

摘要

A liquid presence detecting device that has a simple and compact configuration, and which is high in efficiency, and an air improving device including the detecting device. The liquid presence detecting device includes a magnesium-air battery, and an electrical load. When liquid exists in a detection point, the magnesium-air battery operates (generates electricity), and, when liquid does not exist in the detection point, the operation of the magnesium-air battery stops. Therefore, the liquid presence detecting device detects the presence of liquid, and functions also as a power supply. The air improving device includes the liquid presence detecting device functioning also as a power supply, a device body, and an air improver which is detachably attached into the device body.

主权项

1. A liquid presence detecting device functioning also as a power supply, said device including a magnesium-air battery and an electrical load that consumes power generated by the magnesium-air battery, wherein the magnesium-air battery comprises an anode, a cathode, a liquid holder that is placed between the anode and cathode, and a liquid absorber that extends from the liquid holder to a detection point where a presence of a liquid is to be detected, and, when the liquid exists at the detection point, the liquid absorber is soaked with the liquid, and the liquid is held as an electrolyte solution in the liquid holder, whereby the magnesium-air battery is caused to operate.