Moving coil loudspeaker

Abstract

The invention belongs to the technical field of moving-coil loudspeakers, and particularly relates to a moving-coil loudspeaker which comprises a shell, T iron, a voice diaphragm, a voice coil, an outer magnet and a circuit board. A mounting cavity is formed in the shell, and a sound outlet and a mounting opening are formed in the two opposite ends of the shell respectively; a voice diaphragm, an outer magnet, T iron and a circuit board are sequentially mounted in the mounting cavity; the T iron comprises a bottom plate and a protrusion arranged in the middle of the bottom plate. An accommodating groove is formed between the outer magnet and the bulge; one end of the voice coil is connected with the voice diaphragm, and the other end of the voice coil is movably accommodated in the accommodating groove; a first through hole is formed in the middle of the protrusion in a penetrating mode, at least one second through hole is formed in the bottom plate in a penetrating mode, and the second through holes are communicated with the containing groove. When the voice diaphragm vibrates, air in the cavity between the voice diaphragm and the T iron is pushed to vibrate to generate airflow, and the airflow flows into or out of the cavity through the first through hole and the second through hole, so that the airflow in the cavity flows uniformly, the airflow generated by the vibration of the voice diaphragm in the cavity is balanced, the vibration of the voice diaphragm is smoother, and the tone quality of the loudspeaker is improved.

Description

technical field [0001] The invention belongs to the technical field of moving coil speakers, and in particular relates to a moving coil speaker. Background technique [0002] At present, dynamic speakers are widely used in products such as TVs, computers, audio, headphones, etc. The dynamic speakers convert the current frequency into sound. When the changing current passes through the coil, a changing magnetic field is generated, and the coil drives the sound film of the moving coil to vibrate. , the sound membrane pushes the air in the cavity to vibrate, thus producing sound. [0003] There are many kinds of dynamic speakers on the market. For example, the Chinese invention patent application number is CN201520280941.5, which discloses a high-quality dynamic speaker structure, including a shell, a diaphragm, a voice coil, a washer, a magnet, and a T iron. and a circuit board; wherein, the housing has a cylinder side wall and a bottom wall, the cylinder side wall and the bo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a moving coil horn, which aims to solve the problem that when the vibrating membrane of the horn reciprocates in the prior art, it will push the air in the cavity between the vibrating membrane and the T iron to vibrate to generate airflow, and the airflow can only Entering and exiting the cavity from a position in the air hole in the center of the T-iron, resulting in uneven air flow in the cavity, resulting in a technical problem that the sound quality of the speaker cannot be further improved

Images