Cooling system for battery pack

H - Electricity – 01 – M

Patent

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Details

H01M 10/50 (2006.01)

Patent

CA 2577359

Disclosed herein is a cooling system for a battery pack that is usable as a power source of electric vehicles and hybrid-electric vehicles. The cooling system has the effect of effectively dissipating heat generated from battery cells by supplying a refrigerant to the battery cells at a constant flow rate, and of minimizing a temperature difference between the battery cells during a cooling process. This prevents degradation in the performance of the battery cells, and achieves optimal temperature control. Also, the cooling system employs a single refrigerant guide member arranged at a side of the battery pack, resulting in a reduction in the size of an overall battery system.

L'invention concerne un système de refroidissement pour un bloc batterie servant de source d'énergie dans des véhicules électriques et dans des véhicules électriques hybrides. Ce système de refroidissement dissipe avec efficacité la chaleur générée par les éléments de batterie en les alimentant en agent réfrigérant à un débit constant et il minimise la différence thermique entre les éléments de batterie durant le processus de refroidissement, ce qui évite les pertes de puissance des éléments de batterie et régule la température de manière optimale. Le système de refroidissement de l'invention comporte un seul élément d'écoulement pour l'agent réfrigérant, cet élément étant disposé sur un côté du bloc batterie, d'où un système de batterie aux dimensions d'ensemble réduites.

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