Pump with electronically commutated D.C. motor has board with commutation circuit electronic components to be cooled in thermally conducting contact with wall of pump head

摘要

Pump has pump head with chamber carrying flow of medium, a suction port (25) and pressure port (26), electronically commutated D.C. motor connected to pump head and circuit board (29) with electronic components (4) to be cooled in commutation circuit in thermally conducting contact with wall of pump head (7) bounding chamber and/or suction and/or pressure port and arranged in mounting openings in wall.