To provide a connection structure of a cell voltage detection connector in a fuel cell stack suitable for connecting terminals without interference among them even in case a cell pitch is narrow.
Cell voltage detection terminal parts are electrically connected with separators 9, 10, and at the same time, are arranged in opposition separate from each other in a direction crossing a lamination direction of the fuel cell stack 1, and contain insertion-coupling parts 25 as a pair of contact pieces with either of them having elasticity in an approaching or separating direction toward or from the other. A detection connector 30 is inserted between the pair of contact pieces so as to open the insertion-coupling parts 25 to be electrically connected, in which case, electric connection of the cell voltage detecting part 22 with the separators 9, 10 is made by either or both of the pair of contact pieces.
COPYRIGHT: (C)2009,JPO&INPIT
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Masahiro Fujii
Yasunari Mita
Masaaki Iida