The present provides a heat-emitting element cooling apparatus which has a
higher heat-emitting efficiency than that of conventional heat-emitting
element cooling apparatus.A heat-emitting element cooling apparatus 1
includes a heat sink 7 and a fan unit 5. The heat sink 7 has a base 33
onto which a heat-emitting element is to be mounted, radiation fins of a
first type 35, and radiation fins of a second type 37. The radiation fins
35 extend from an upper surface 33A in an upward direction. The radiation
fins 37 extend from either of two side surfaces 33B and 33C in either of
rightward and leftward directions. The radiation fins 35 and 37
continuously extend in forward and rearward directions respectively.