摘要 |
A micro speaker is provided to improve the performance without increasing the size of the micro speaker, by providing a magnetic circuit to solve magnetic saturation due to high magnetic density. A micro speaker(10) is installed at a frame of an electronic device as being supported, and outputs acoustic sound by being connected to an electronic circuit of the electronic device. According to the micro speaker, a magnet(20) has an outer frame(22) to form magnetic space(12) arranged with a voice coil(14). An outer magnet(50) has an inner frame(52), and is installed by being separated from the outside of the magnet as much as the magnetic space, in order to form the magnetic space in the inside of the inner frame. |
申请人 |
PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION |
发明人 |
HWANG, SANG MOON;KWON, JOONG HAK;LEE, HONG JOO;KIM, KWANG SEOK;KIM, TAE SOON;YANG, YONG CHANG;KIM, SUNG YOUNG |