Patent ID: 9748619
Date: 2017-08-29
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. An onboard battery for a vehicle comprising: at least one battery module including battery cells disposed in a predetermined state, and a cell cover in which the battery cells are disposed, at least one part of an internal space of the cell cover being formed as at least one chamber into which cooling air is sent; a housing case that houses the battery module; at least one intake duct through which the cooling air is sent into the at least one battery module; at least one exhaust duct through which the cooling air sent into the at least one battery module is discharged; a heater that is disposed in the at least one chamber, and heats the battery cells; and a heat sink that is disposed in the at least one chamber, located opposite to the battery cells, and attached to the heater, wherein: the heat sink includes a base body formed by a resin material, and a heat conductor provided to an outer surface of the base body and formed by a metal material, the base body includes a flat base plate section attached to the heater, and at least one protrusion protruding to the battery cells from the base plate section, and the heat conductor is provided to a portion of the at least one protrusion, other than an end surface of the protrusion.