Patent ID: 7896063
Filing Date: 2011-03-01
Classification: F28D,F28F,H01M,Y02E

Abstract:
1. A heat exchanger structure for a battery package, the battery package comprising battery modules disposed in a holder, the heat exchanger comprising a fan to blow air from an upstream part to a downstream part of the battery package; wherein the holder comprises a plurality of fins, configured such that an air contact area of the battery modules at the upstream part is smaller than an air contact area of the battery modules at the downstream part; wherein each fin defines a length in a direction substantially perpendicular to a direction from the upstream part to the downstream part, wherein the lengths of the fins at the upstream part are longer than the lengths of the fins at the downstream part; and wherein the fins are disposed at a first side of the battery modules, the structure further comprising additional fins at a second side of the battery modules, wherein each additional fin defines a length in the direction substantially perpendicular to the direction from the upstream part to the downstream part, wherein the lengths of the additional fins at the upstream part are shorter than the lengths of the additional fins at the downstream part.