Battery pack for electric vehicle and battery pack mounting structure

摘要

In a battery pack for an electric vehicle, since a cooling air suction port (48a) is provided in the vicinity of an end part, on the downstream side in a direction of flow of cooling air, of a battery case (24) so as to oppose the direction of flow, cooling air is in full contact with the battery case (24) before flowing into the cooling air suction port (48a), and dust or water contained in cooling air can be made to adhere to the battery case (24) and removed, thus preventing dust or water from entering the interior of the battery case (24). In particular, since the battery case (24) includes a projecting portion (39a) that rises on the upstream side in the direction of flow of the cooling air suction port (48a) and disturbs the flow of cooling air, and an upper end of the projecting portion (39a) is at a position higher than that of the cooling air suction port (48a), it is possible to reliably put cooling air in contact with the projecting portion (39a) of the battery case (24), thus enhancing the effect in removing dust or water.

主权项

1. A battery pack for an electric vehicle, the battery pack comprising a battery case that houses a plurality of batteries, a cooling air suction port that sucks cooling air into a cooling passage formed in an interior of the battery case, and a cooling air discharge port that discharges cooling air from the cooling passage, wherein
the cooling air suction port is provided in the vicinity of an end part on the downstream side, in a direction of flow of cooling air, on an exterior of the battery case so as to oppose the direction of flow, the battery case comprises a projecting portion that rises on the upstream side in the direction of flow of the cooling air suction port so as to disturb the flow of cooling air, and an upper end of the projecting portion (39a) is at a position higher than an upper end of the cooling air suction port.