FIELD: process engineering.
SUBSTANCE: invention elates to electric power drives with output controlled by appropriate switches. Power drive comprises multiple switches to control motor output and wire-circuit board to carry said switches enclosed in metal case. Every said switch includes conducting part and insulated part coated by insulation cover layer. Every said conducting part of the switch stays in contact with said sire board. Every insulated part stays in contact with metal case via said insulation coat. Metal case is filled with insulating filling material for wire board to be embedded therein.
EFFECT: better heat dissipation of switches.
6 cl, 6 dwg
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