Patent ID: 8329330
Filing Date: 2012-12-11
Classification: B60L,H01M,Y02E,Y02T

Abstract:
1. A power supply device comprising: a battery block that includes a plurality of battery cells arranged side by side, cooling gaps being provided for flowing cooling gas between battery cells; a coupling member that extends in the side-by-side arrangement direction of the battery cells and couples said plurality of battery cells to each other in the side-by-side arrangement; and a temperature equalizing plate that is arranged on a side surface of said battery block and at least partially closes openings of some of the cooling gaps on the cooling gas inlet side of said cooling gaps, wherein the cooling gas is blown from the side surface of said battery block into said cooling gaps so that said battery cells are cooled, wherein the width of the temperature equalizing plate, which covers the side surface of said battery block, varies so that the amounts of the cooling gas flowing into said cooling gaps are reduced as the battery cells are located closer to the cooling gas upstream side, wherein the cooling gas upstream side of said temperature equalizing plate is fastened to said battery block, and said temperature equalizing plate includes an attachment protrusion that protrudes from the cooling gas downstream side of said temperature equalizing plate, wherein a protrusion insertion portion is arranged at a position of said coupling member corresponding to the attachment protrusion on the side surface of said battery block so that said attachment protrusion can be inserted into the protrusion insertion portion, and wherein when the attachment protrusion of said temperature equalizing plate is inserted in the protrusion insertion portion of said coupling member, said temperature equalizing plate is attached to said coupling member.