Invention Grant
- Patent Title: Electrodynamic acoustic transducer with a high density coil and production method thereof
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Application No.: US16868414Application Date: 2020-05-06
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Publication No.: US11418886B2Publication Date: 2022-08-16
- Inventor: Gustav Otto , Hong-Bi Dong Nguyen , Franz Heidinger
- Applicant: Sound Solutions International Co., Ltd.
- Applicant Address: CN Beijing
- Assignee: Sound Solutions International Co., Ltd.
- Current Assignee: Sound Solutions International Co., Ltd.
- Current Assignee Address: CN Beijing
- Agency: Sound Solutions International Co. Ltd.
- Priority: ATA50404/2019 20190506
- Main IPC: H04R9/02
- IPC: H04R9/02 ; H04R31/00

Abstract:
An electrodynamic acoustic transducer, is disclosed, which comprises a frame and/or a housing, a membrane, at least one coil and a magnet system. The coil in a cross sectional view with a coil axis being part of the sectional plane comprises a plurality of conductive layers formed by an electrical conductor of the coil. The electrical conductor has a rectangular cross section in said cross sectional view, wherein a longer side of the rectangular cross section is substantially perpendicular to the loop axis. Furthermore, a method for manufacturing an electrodynamic acoustic transducer of the proposed kind is disclosed. According to this method, a stack of conductive layers is made from the electrical conductor by stacking of separate pieces of the electrical conductor and electrically connecting the stacked separate pieces and/or by folding of the electrical conductor.
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