Coaxial neodymium iron boron loudspeaker with high-sensitivity magnetic circuit structure

Abstract

The invention provides a coaxial neodymium iron boron loudspeaker with a high-sensitivity magnetic circuit structure. The coaxial neodymium iron boron loudspeaker comprises a magnetic loop system, a vibration system and an auxiliary system; the magnetic loop system comprises a magnetic conductive bowl, a magnetic conductive sheet, a neodymium iron boron magnet and a distortion ring; a magnetic loop with two high and low magnetic air gaps is formed on the same plane; the vibration system comprises a low and medium frequency vibration system and a high frequency vibration system, the low and medium frequency vibration system comprises a low and medium frequency voice coil, a low and medium frequency diaphragm, a low and medium frequency paper cone connecting ring, a low pitch diaphragm, a low pitch ring and a positioning support piece; and the high frequency vibration system comprises a high frequency voice coil, a high pitch diaphragm, a short circuit ring, a high pitch aluminum phase plug and a high pitch aluminum parabola horn; high and low pitches are combined into a whole, the sensitivity is high, the loudspeaker effect is not interfered with each other, the assembly is convenient, and the cost is low; the sensitivity and the power of the coaxial neodymium iron boron loudspeaker are higher than those of an existing coaxial loudspeaker, and the same neodymium iron boron magnet is used for high and low pitches.

Description

technical field [0001] The invention relates to the technical field of audio equipment, in particular to a coaxial NdFeB loudspeaker with a high-sensitivity magnetic circuit structure. Background technique [0002] The existing coaxial speakers are all external magnetic ferrite double magnets or external magnetic ferrite with the same magnet. Some NdFeB speakers are used separately for high-pitched NdFeB speakers and woofers. Waste of raw materials and high production costs. [0003] At present, most of the common speakers on the market are difficult to reproduce the entire sound range from 20Hz-20KHz with high quality. In order to reproduce the entire sound range with high quality, they are generally composed of several speakers with different characteristics. Difficult, expensive, and mature full-range speakers are rare in the market. If it is structurally difficult to combine the treble and bass speakers into one; if the treble and bass magnets are made into an integrat...

AI Technical Summary

Problems solved by technology

[0002] The existing coaxial speakers are all external magnetic ferrite double magnets or external magnetic ferrite with the same magnet. Some NdFeB speakers are used separately for high-pitched NdFeB speakers and woofers. Waste of raw materials and high production costs

[0003] At present, most of the common speakers on the market are difficult to reproduce the entire sound range from 20Hz-20KHz with high quality. In order to reproduce the entire sound range with high quality, they are generally composed of several speakers with different characteristics. Difficult, expensive, and mature full-range speakers are rare in the market

If it is structurally difficult to combine the treble and bass speakers into one; if the treble and bass magnets are made into an integrated structure, since the magnets must meet the different requirements of the treble and bass speakers at the same time, and the structure is difficult to match, it will inevitably lead to a greatly increased scrap rate. And it wastes resources; if the high-bass magnets are designed into separate structures, how to assemble the high-bass speakers is a problem, and how to make the treble and bass sound waves perfectly superimposed is a big problem. If it is not handled properly, it will cause mutual interference and cause distortion. , seriously affecting the speaker

Moreover, it is difficult to solve the combination of high and low sounds, and the speaker effect with high sensitivity and no mutual interference

Images