Patent ID: 7006356

Claim:
A converter control for low voltage three-phase motors for a driving system, comprising: a power unit containing transistors and capacitors, a triggering unit for the transistors, and a control unit as well as connections for direct and alternating current, the units being disposed in a common casing made of a heat-conductive material, the casing having a bottom and a separate cover, the power unit being provided with a first printed circuit board ( 24 ) made of fairly heat-conductive material, which is disposed on the fairly heat-conductive bottom of the casing ( 12 ) in a plane fitting arrangement; a second printed circuit board ( 26 ) containing the triggering unit, being electrically and mechanically connected to the first printed circuit board ( 24 ) in a spacing to it with the aid of contact pins ( 30 ) of metallic material attached on the first printed circuit board ( 24 ) by soldering, and terminal pins ( 22 ) connected with contact points ( 38 ) of the first printed circuit board ( 24 ) and leading through openings in the second printed circuit board ( 26 ) as well as in the cover ( 14 ) in an insulated manner, and the contact pins ( 30 ) are at least partially constructed out of a springy material and are formed in an axially yielding configuration in the vicinity of its mountings.