Electro-dynamic sound transducer for e.g. microphone, has membrane comprising region in form of calotte, and pole plate curved outward and arranged on magnet, where region of pole plate is adapted to contour of calotte

摘要

The transducer (10) has a cup (2) surrounding a pole plate (3) and a magnet (1), where the pole plate is arranged on the magnet. A voice coil (4) is inserted into an air gap formed between the pole plate, the magnet and the cup, and connected with a membrane (5). The membrane comprises a region in form of a calotte, where a region of the pole plate is adapted to the contour of the calotte. The pole plate is curved outward and consists of magnetizable material, where the pole plate is formed as a one-piece component.