Ventilator-Einheit mit Elektronik-Bauteilen

摘要

A fan assembly for a ventilator, and a square ventilator housing comprising a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage. The electronic components as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly are placed inside one or more hollow portions in the corners of said square housing.