Patent ID: 7916481

Claim:
An electronic circuit card comprising: at least one electronic power component ( 6 to 10 ) fitted with a soleplate ( 78 ) suitable for being put directly into contact with a cooling fluid; a cold plate ( 4 ) having the soleplate ( 78 ) of the electronic power component fastened thereon in a manner that is leaktight relative to the cooling fluid, said cold plate comprising: at least one recess ( 36 , 38 , 48 , 50 ) including an opening that opens out under the soleplate of the electronic power component ( 6 to 10 ); at least one admission orifice ( 70 ) for admitting cooling fluid into the inside of the recess; and at least one discharge orifice ( 72 ) for discharging cooling fluid from the recess; wherein said cold plate ( 4 ) further comprises: a spray plate ( 42 ; 112 ) interposed between the admission orifice ( 70 ) and the discharge orifice ( 72 ); and a plurality of rectilinear nozzles ( 86 to 90 ; 114 to 118 ) passing right through said plate in a spray direction, the length of the nozzle along the spray direction being longer than or equal to the greatest width of the nozzle perpendicular to said direction so as to form a jet ( 100 to 104 ) of cooling fluid along the spray direction, the spray direction of each nozzle being at an angle α relative to a direction perpendicular to the soleplate, the angle α lying in the range −30° to +30°.