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US 2026/0018643 A1Published application
Power outlet assembly for electric stack, particularly fuel cell stack
AssigneePowercell Sweden AB
InventorRobin VELÉN
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AssigneePowercell Sweden AB
InventorRobin VELÉN
Estimating the term…
An electric cell stack assembly includes at least an electric energy generating cell stack body with a plurality of stacked unit cells. Each unit cell is a unit fuel cell includes a bipolar plate and a membrane electrode assembly, a first and second terminal plate sandwiching the cell stack body, which are adapted to collect the electric energy generated by the cell stack body. Each terminal plate includes a power output terminal, which is connectable to an external connector, and a tightening arrangement adapted to tighten the external connector to the power output terminal, for providing an electric connection between the external connector and the power output terminal. The tightening arrangement includes at least a first nut and a threaded element wherein the threaded element is adapted to be screwed into the first nut with a first end, and wherein the first nut is adapted to provide a tightening stop for the threaded element.
Electric cell stack assembly (100), particularly fuel cell stack assembly (100), comprising at least
Electric stack according to any one of the preceding claims, wherein the tightening stop (40) of the first nut (22) is provided by
Electric stack according to any one of the preceding claims, wherein the first nut (22) is a square nut and/or wherein the threaded bolt is a threaded rod.
Electric stack assembly (100) according to any one of the preceding claims, wherein the tightening means (20) further comprise a vibration loosening preventing element, preferably a lockring or lock washer (25), wherein preferably the vibration loosening preventing element is arranged between the threaded element (24) and the power output terminal (14), and/or wherein the threaded element (24) and/or the first nut (22) and/or the second nut (24) is equipped with a self-lock thread (46).
Electric stack assembly (100) according to any one of the preceding claims, further comprising a first and second insulation plate (10) sandwiching the arrangement of cell stack body (2) and the first and second terminal plates (8), wherein both the first and second insulation plate (10) comprises a power terminal housing (30), which is adapted to encompass the power output terminal (14) of the corresponding terminal plate (8) and electrically isolate the power output terminal (14) from the outside.
Dependencies are inferred from the claim text.