BigPatents India

A fuel cell is characterized by including a cartridge 3 having a fuel outlet 2 for ejecting a liquid fuel 1 held in the cartridge 3 and a fuel cell main body 5 having a fuel receiving hole 4 for receiving the liquid fuel 1 from the cartridge 3, the fuel cell having a configuration in which the fuel outlet 2 of the cartridge 3 is detachably connected to the fuel receiving hole 4 of the fuel cell main body 5, wherein the cartridge 3 includes a first valve body 6 for opening and closing the fuel outlet 2 and a first elastic member 7 for applying an elastic force to the first valve body 6 so as to normally close the fuel outlet 2, the fuel cell main body 5 includes a second valve body 8 for opening and closing the fuel receiving hole 4 and a second elastic member 9 for applying an elastic force to the second valve body 8 so as to normally close the fuel receiving hole 4, and in the configuration, the elastic force of the elastic member 7 is specified to be larger than the elastic force of the second elastic member 9, when the fuel outlet 2 of the cartridge 3 is attached to the fuel receiving hole 4 of the fuel cell main body 5 by a pressing force, the first valve body 6 of the cartridge 3 is butted against the second valve body 8, the second valve body 8 is pushed down against the elastic force of the second elastic member 9 so as to maintain the state of the fuel receiving hole 4 being opened, and a pressing force larger than the elastic force of the second elastic member 8 is applied to the cartridge 3 so as to push up the first valve body 6 against the elastic force of the first elastic member 7 through reaction of the second valve body 8 and, thereby, open the fuel outlet 2 of the cartridge 3. According to the fuel cell having the configuration, no leakage of liquid fuel occurs during fuel filling from the cartridge into the fuel cell main body and the liquid fuel can be filled in reliably with a simple configuration. No. of Pages : 23 No. of Claims : 7