Micro-speaker and its vibration system manufacturing method

Abstract

The invention provides a micro loudspeaker and a manufacturing method of the vibration system of the micro loudspeaker. The micro loudspeaker comprises the vibration system, a magnetic circuit system and an auxiliary system, wherein the vibration system and the magnetic circuit system are accommodated and fixed by the auxiliary system; the vibration system comprises a vibration diaphragm and a voice coil; the voice coil is jointed with the lower side of the vibration diaphragm and arranged in a magnetic gap formed by the magnetic circuit system; gaskets with discontinuous structures are arranged in the joint position of the vibration diaphragm and the voice coil. The manufacturing method of the vibration system of the micro loudspeaker comprises the following steps: firstly, the vibration diaphragm provided with a spherical top and the gaskets provided with connecting structures are respectively formed; secondly, the formed gaskets are arranged below the formed vibration diaphragm and fixed with the vibration diaphragm to form a whole; finally overall cutting is preformed to the jointed connecting structure and the spherical top corresponding to the connection structure. According to the invention, the distortion of the product can be reduced; the performance of the product with high power can be improved; the manufacturing method of the vibration system of the micro loudspeaker can guarantee the consistency and the assembly precision of the gaskets, and can lower the manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of acoustic-electric conversion, and more specifically, relates to a manufacturing method of a micro-speaker and a vibration system thereof. Background technique [0002] With the development of portable terminal consumer electronic products, a large number of speakers, especially micro speakers have been widely used. The working principle of the well-known micro-speaker is that the voice coil with alternating current is subjected to Lorentz force in the magnetic field, so that the vibration system of the dynamic electro-acoustic transducer vibrates in the vertical direction to produce sound. At present, micro-speakers with known structures, especially the sound amplification equipment used in electronic parts such as LCDs, PDPs, etc., require relatively high-power micro-speakers. [0003] For high-power micro-speakers, because of the small resistance of the voice coil, the length of the voice coil should n...

AI Technical Summary

Problems solved by technology

[0005] 1. The tolerance of the voice coil bobbin is large. For micro-speakers, the large tolerance will cause performance loss

[0006]2. The winding of the voice coil is cumbersome, requiring a lot of manpower and material resources, and the cost is high

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