LOW MAGNETISM LEAK SPEAKER

摘要

PURPOSE:To enable a low magnetism leak speaker to be used for a high- definition TV receiver without leaking magnetic flux to the outside space by shielding magnetic poles of an annular magnet magnetically in specific form. CONSTITUTION:A top plate 17 as one magnetic pole of the annular magnet 16 is covered with the internal bottom surface and flank of a bottom plate 15 as the other magnetic pole and a stop frame 20 which is joined with the plate 15 and magnetized to the same polarity and further a plate extended to the center from the lower end of the through hole part of the frame 20. Consequently, leaking magnetic flux is generated between the plates 17 and 15, and frame 20 and a magnetic shield plate 29 arranged around the lower end of the through hole part of the frame and never leaks to other spaces.