Patent ID: 6865200
Filing Date: 2005-03-08
Classification: F28F,H01S

Abstract:
1. A cooling device for cooling an object of cooling thermally connected therewith by flowing coolant through a flow passage formed therein, comprising: a first plate member having an inlet opening for introducing the coolant, and a first grooved path formed on one surface thereof extending from one end communicating with said inlet opening to the other end positioned in the vicinity of one peripheral side thereof; a second plate member with one surface arranged on said one surface of said first plate member, having a set of through holes formed at a position corresponding to said other end of the first grooved path of said first plate member; and a third plate member with one surface arranged on the other surface of said second plate member, having an outlet opening for discharging the coolant and a second grooved path formed on said one surface thereof and extending from one end communicating with said outlet opening to the other end positioned to be corresponding to said set of through holes formed in said second plate member; said second plate member further having a third grooved path formed on said one surface thereof, a fourth groove path formed on said other surface thereof and at least one opened path opened from said one surface to said other surface thereof, wherein said first, second and third plate members are joined together to be laminated, so that said first, second, third and fourth grooved paths, said set of through holes and said at least one opened path jointly forming the flow passage of the coolant.