Patent ID: 7835536
Filing Date: 2010-11-16
Classification: H04R

Abstract:
1. An electroacoustic transducer comprising: a multifaced diaphragm assembly having a plurality of connected polygonal diaphragm segments forming a nearly spherical shell shape, a plurality of speaker drive units which include a speaker housing, a bobbin that is supported vibratably by the speaker housing and adhered at a first end portion thereof to an inner center portion of each of the diaphragm segments, a voice coil that is attached on a second end portion of the bobbin, a yoke, and a magnet that generates a drive force in the voice coil along with the yoke, each of the plurality of speaker drive units being arranged inside the multifaced diaphragm assembly so as to oppose respectively the diaphragm segments, and a multifaced mounting pedestal assembly having a plurality of connected speaker mounting segments forming a nearly spherical shell shape, each of the speaker mounting segments having a shape of a polygonal pyramid or a polygonal pyramid pedestal and having a bottom face which opposes each of the diaphragm segments, wherein: each of the speaker drive units is attached on the bottom face, a plurality of lateral faces of the speaker mounting segments connect with each other to form the multifaced mounting pedestal assembly, and the multifaced mounting pedestal assembly is housed in the multifaced diaphragm assembly.