Printed circuit board for external rotor motor with recess for Hall transducers

摘要

In order to be able to decrease the axial height, while simultaneously simplifying the manufacture, and also increasing the operational safety of printed circuit boards with electrical structural elements, such as Hall transducers affixed and electrically contacted to it further: (a) the printed circuit board contains, at least on one side, a supporting board (2) with recesses (21-23) in the area of each Hall transducer (4; 5; 6) and its connection legs (41-43; 51-53; 61-63) and on the other side a conductive foil (3) fastened to the surface of the supporting board (2), which covers the recesses (21-23) at least in the area of the free ends of the connection legs (41-43; 51-53; 61-63) and lands (44-46; 54-56; 64-66) for the connection legs of the Hall transducers; and (b) each Hall transducer and its connection legs is placed in a recess and the connection legs extend within the recess and include angle-bent ends connected to the lands.