| 摘要 |
<P>PROBLEM TO BE SOLVED: To check easily the remaining amount of fuel of a fuel cell. <P>SOLUTION: A fuel cell, a lithium ion secondary battery, a wiring board mounted with a control circuit or the like, and a light-emitting diode or the like are housed in a case 1. The bottom face of the case 1 is covered with a bottom plate 4. A plurality of air inlet holes 5 are formed in the bottom plate 4 in order to supply air to the fuel cell. Two pieces of USB ports 6a, 6b are installed on the peripheral face of the case 1. A large number of air exhaust holes 10 are formed at the upper part of the peripheral face of the case 1. Gas in the case 1 is discharged to the outside through the air exhaust holes 10. Further, light of an LED installed in the case 1 works as illumination to a fuel cartridge 2, and checking of the liquid level of the fuel cartridge 2, that is, checking of the remaining amount of the fuel can be made easily. <P>COPYRIGHT: (C)2010,JPO&INPIT |
