Modular electronic power supply

DETAILED DESCRIPTION What is claimed is: 1.
In an electronic power supply, a framework having front and rear sides and top and bottom sides and having a vertically disposed space extending upwardly from the bottom of the framework through the top of the framework, a plurality of vertically spaced power modules disposed in the framework on opposite sides of the vertically disposed space and having vertically disposed heat sinks extending into the vertically disposed space, said heat sinks including a plurality with vertically disposed spaced apart fins extending into said vertically disposed space and means carried by the framework for forcing air in a vertical direction through the vertically disposed space, said vertically disposed space being free of impediments between the vertically disposed heat sinks so that the air can travel uninterrupted through the spaced apart fins in said vertically displaced space.
2.
A power supply as in claim 1 wherein said means for forcing air through the vertically disposed space in the framework includes a plurality of fans disposed in a horizontal plane for forcing air in an upward direction, air straightener means disposed above the fans so that there is provided a constant uniform velocity of air substantially uniformly distributed horizontally in the vertically disposed space.
3.
A power supply as in claim 1 wherein said means for forcing air through the vertically disposed space in the framework includes upper and lower sets of fans disposed in spaced apart horizontal planes for forcing air in a vertical direction.
4.
A power supply as in claim 3 wherein the fins have a predetermined length in a vertical direction in the vertically disposed space and wherein the lower set of fans creates a boundary layer having a length which is greater than the predetermined length of the fins.
5.
A power supply as in claim 2 together with a plurality of additional fans disposed in a horizontal plane spaced apart from the first named fans to move the air in a vertical direction