PCB-INTEGRATED LEAD MAGNETIC FIELD ENERGY EXTRACTION APPARATUS BASED ON ELECTROMAGNETIC INDUCTION PRINCIPLE

摘要

A PCB-integrated lead magnetic field energy extraction apparatus based on an electromagnetic induction principle, comprising a PCB (10), the PCB comprising: a substrate (11) and a coil (12), the substrate defining a center through hole (111), and the coil being provided on the substrate and spirally distributed around the center through hole; a rotatable permanent magnet component (20), the rotatable permanent magnet component being rotatably embedded in the center through hole; and a fixed permanent magnet (30), the fixed permanent magnet being arranged opposite the rotatable permanent magnet component and providing the rotatable permanent magnet component with a direct current bias magnet field. The lead magnetic field energy extraction apparatus drives the rotatable permanent magnet component into rotation by means of the magnetic moment between the magnetic field of a lead (200) and the fixed permanent magnet to drive, thus converting the magnetic field energy around the lead into the mechanical energy of the rotatable permanent magnet, and then converting into electricity of the coil, and thereby providing electricity to low-power electronic devices such as sensors in a power transmission system.