| 摘要 |
Disclosed is an armature apparatus for a moving-iron speaker or telephone receiver, with improved structure. The apparatus comprises a vibrating tongue piece, a support pin, and a connecting portion, wherein the vibrating tongue piece is located in the central part of the armature, and an integral body is formed by connecting the vibrating tongue piece to the two support pins symmetrically arranged on the two sides of the vibrating tongue piece by means of the connecting portion. The apparatus is characterised in that: the armature apparatus as a whole is a planar structure. Furthermore, the vibrating tongue piece is also provided with a mechanical stiffness modulating mechanism. The advantages of the present invention are at least: in comparison with traditional armature apparatuses, using an integral planar structure, greatly increasing the manufacturability of the armature and significantly reducing machining costs, while ensuring that the magnetic loop in the product is unblocked; and at the same time, on the premise of preserving the inherently high sensitivity of a moving-iron speaker or telephone receiver, innovatively adding a mechanical stiffness modulating mechanism onto the vibrating tongue piece to rationally reduce the mechanical stiffness of the vibrating tongue piece, increasing the responsiveness of the product to the audio frequency range, and optimising the electroacoustic performance thereof. |
