| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a current measuring device of a fuel cell where measurement errors generated by immersing into water of a columnar part and a current sensor can be reduced. <P>SOLUTION: In the current measuring device 20 that is arranged between cells 11 of the fuel cell, and that has a plurality of columnar parts 211, arranged corresponding to respective measurement positions in an electrode surface, and that has the current sensor for measuring the current flowing through these columnar parts, a first plate part 22b for waterproofing is arranged between the cell 11a on the left side and a current sensor plate 21, and a second plate part 22c for waterproofing is arranged between the cell 11b on the right side and the current sensor plate 21. At this time, a groove 23 for a cooling water passage is installed at these plate parts 22 for the waterproofing. Furthermore, for example, because the thickness of the plate part 22 for the waterproofing is made thin, a part 24 contacting the columnar part 211 of the current sensor plate 21 in the plate part 22 for the waterproofing is constituted of a conductor, and the other part 25 is constituted of an insulator, the surface resistance of the plate part 22 for the waterproofing is made larger than the resistance in the laminating direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
