| 主权项 |
1. A micro-electroacoustic device comprising:
a holder forming a hollow space; a magnetic system received in the hollow space and comprising a magnetic gap; a vibrating system comprising a diaphragm and a coil driving the diaphragm for vibrating approaching and away from the magnetic system along a vibrating direction, the diaphragm assembled with the holder and comprising:
an upper edge portion having a protruding part protruding in the direction opposite to the magnetic system, a first inner part extending from one end of the protruding part, a through hole surrounded by the first inner part, and a first outer part extending from the other end of the protruding part;a dome part having a main curve portion passed through the through hole of the upper edge portion and a connecting portion extending from the main curved portion, located below the first inner part of the upper edge portion, and connected with the first inner part of the upper edge portion;a lower edge portion located below the upper edge portion, the lower edge portion having a recessed part recessed towards the magnetic system, a second inner part extending from one end of the recessed part, and a second outer part extending from the other end of the recessed part; and a suspension connected with the diaphragm and having an inner ring portion, a center opening surrounded by the inner ring portion, and an outer ring portion surrounding the inner ring portion and fixed on the holder, the inner ring portion located between the connecting portion of the dome part and the second inner part of the lower edge and connected with the connecting portion of the dome part and the second inner part of the lower edge, the outer ring portion located between the first and second outer parts and connected with the first and second outer parts. |
