Printed circuit board construction for reducing the infrared false alarm rate of a pyroelectric infrared detector

摘要

A printed circuit board assembly for reducing the infrared false alarm rate of a pyroelectric infrared detector, wherein the printed circuit board assembly is electrically connected to the pyroelectric infrared detector (10), characterized by: a printed circuit board (20) having an electronic component mounting area (21), an insulating area (22) and at least one lead wire (23), the at least one lead wire (23) being connected between the insulating area (22) and the mounting area (21 ) is located; and a heat insulating structure (30) having at least one opening (31) penetrating the circuit board (20) and surrounding the insulating region (22), wherein in the insulating region (22) is the pyroelectric infrared detector (10) electrically connected to the at least a lead wire (23) is connected.