Printed circuit board with vibration-generating electronic component

摘要

Surface mounted ceramic capacitors (14) on printed circuit boards (10′) are subject to vibrations (18) caused by the piezo effect. Other electronic components are subject to magnetostriction and likewise generate vibrations. In prior art, the vibrations can propagate (20) on a printed circuit board (10). To suppress the propagation of the vibrations caused by the electronic component (14), the invention provides at least one slot (22) in the printed circuit board (10′). The slot (22) extends, for example, parallel to a side wall of the electronic component (14).

主权项

1. A printed circuit board comprising:
at least two spaced apart conductor tracks arranged on the printed circuit board, and an electronic component which is connected to the at least two conductor tracks and which triggers mechanical oscillations during operation, thereby propagating acoustic waves in the printed circuit board, wherein: a base area of the electronic component has at least two substantially straight side walls opposing each other, and the printed circuit board comprises exactly two spaced apart substantially straight slots respectively arranged on opposite sides of the electronic component, the two slots running parallel to respective ones of the at least two substantially straight side walls of the electronic component and being formed in the printed circuit board so as to prevent propagation of the acoustic waves triggered during operation of the electronic component in the printed circuit board; wherein each of the two slots is formed entirely within an outer peripheral edge of the printed circuit board and is parallel to at least a part of the at least two conductor tracks.