Power regulator for blower motors, especially for air conditioning installations of motor vehicles

摘要

a) Power regulator for blower motors, especially for air conditioning installations of motor vehicles. b) Regulator characterised in that the base body (12) has a recess (18) of the trough type for accommodating the printed card (22) which is turned with its solder side to the bottom of the trough, in such a way that at least the cooling surface (36) of the power transistor (32) is held on a mounting shoulder (26 or 28 or 30) made on the base body (12), a shoulder which is formed in a plane between the bottom of the trough and the edge (56) of the trough, and that the printed card (22) is covered over in the recess (18) at least partially by means of a mass of insulating, curable filling material (58). c) The invention applies to blower motors of air conditioning installations of motor vehicles. IMAGE