Patent ID: 8403090

Claim:
A power supply apparatus for a vehicle, comprising: a plurality of battery modules each including a plurality of battery cells; a support plate supporting the battery modules and including a first plate and a second plate, the first plate thermally contacting bottom surfaces of the battery modules, the second plate being placed on a bottom surface of the first plate to define cooling spaces in which a coolant is to flow, the cooling spaces being defined between the first and second plates under the battery modules and extending in a first direction along the bottom surface of the first plate; a plurality of first reinforcing projections provided on at least one of the first and second plates, the first reinforcing projections projecting into the cooling spaces and extending in the first direction along the cooling spaces; and a plurality of second reinforcing projections provided on a top surface of the first plate and extending in a second direction intersecting with the first direction, the second reinforcing projections being provided between the battery modules in the first direction.