Fuel cell system and vehicle using fuel cell

Details Fuel cell system and vehicle using fuel cell Fuel cell system and vehicle using fuel cell

H - Electricity

01

M

H01M 8/04 (2006.01) H01M 8/00 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2595091

In a fuel cell system in which a fuel cell case (14) houses a fuel cell stack (4) composed of a plurality of cells stacked on top of each other and a cell monitor board (11) for monitoring cell voltages of the fuel cell stack (4) and in which the fuel cell stack (4) is connected to a power converter such as an inverter in order to reduce the influence of the electromagnetic noise from the outside on the circuit board or from the circuit board on the outside and to achieve a stable operation of the fuel cell stack. The cell monitor board (11) is covered with a cell monitor cover (20) having high electromagnetic shield property. The cell monitor cover (20) is made of a conductor such as, for example, copper, iron, or aluminum.

L~invention concerne un système de piles à combustible permettant de supprimer l~effet du bruit électromagnétique entre une carte à circuit et l~extérieur ou entre l~extérieur et la carte à circuit et garantissant un fonctionnement stable d~un empilement de piles à combustible. Le système de piles à combustible comporte un empilement de piles à combustible (4) formé d~une pluralité de piles superposées et un substrat de contrôle de piles (11) servant à contrôler la tension des piles de l~empilement de piles à combustible (4), abrités dans un boîtier de piles à combustible (14). L~empilement de piles à combustible (4) est relié à un convertisseur de puissance tel qu~un onduleur. Le substrat de contrôle de piles (11) est recouvert d~un capot de contrôle de piles (20) offrant un blindage très efficace contre les ondes électromagnétiques. Le capot de contrôle de piles (20) est formé d~un matériau conducteur tel que le cuivre, le fer et l~aluminium.

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