FIELD: electric engineering.
SUBSTANCE: body of block has frame body part made in form of cast by molding under pressure, with open upper and lower sides, in material of which partially embedded are metallic plate conductors, formed by at least one punched grating, while frame body part on lower side is covered by metallic bottom element for draining heat, and on the upper side is covered by lid and between bottom element and electronic board powerful circuit elements are placed, contact outputs of which are electrically connected to board and/or to plated conductors and lower sides of which, formed by cooling plates and opposite relatively to board, are connected to said bottom element with sure heat-conductive contact.
EFFECT: higher efficiency, simplified manufacture.
8 cl, 5 dwg
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