| 摘要 |
<p>Provided is a condenser microphone with a diaphragm plate having an air groove. The condenser microphone includes a container-shaped case having an open side and a mesh sound hole disposed in a middle portion of a bottom, a diaphragm plate including a polar ring and a diaphragm, the polar ring including an air groove for providing an air flow for the mesh sound hole in the middle portion when being in close contact with the case, the diaphragm being vibrated by a sound pressure introduced through the mesh sound hole, a backplate including a sound hole, a spacer for forming a space between the diaphragm plate and the backplate, an insulating base for electrically insulating the backplate from the case, a conductive base electrically insulated from the case through the insulating base, and a printed circuit board (PCB) on which a connection terminal and a circuit part are mounted, the PCB electrically connected to the backplate through the conductive base and connected to the diaphragm plate through the case.</p> |
