Double-basin-frame combined type loudspeaker system with precise ring-shaped pipe composite channel group

Abstract

The invention discloses a double-basin-frame combined type loudspeaker system with a precise ring-shaped pipe composite channel group. The combined type loudspeaker system is characterized in that a double-basin-frame cone loudspeaker is structured, the precise ring-shaped pipe composite channel or channel group is upwards arranged behind or before the double-basin-frame medium-low cone loudspeaker, the acoustic radiation environment, the process influencing the acoustic transferring radiation and the outputted acoustic field are limited, the fidelity and the radiation efficiency of the forward and backward radiating acoustic waves are improved; when the loudspeaker works at low frequency, the precise ring-shaped pipe composite channel consists of a ring-shaped pipeline acoustic transformator and a ring-shaped pipe acoustic mass element; the total equivalent vibration mass of the loudspeaker is increased due to combined action of the acoustic transformator and the acoustic mass, so that the low-frequency resonant frequency of the loudspeaker is reduced and further the low-frequency radiating efficiency is improved; and a vibrator of the double-basin-frame loudspeaker enclosed by the precise ring-shaped pipe composite channel or the channel group is also not directly interfered by external air, the surface load balance or forward and backward load balance can be maintained and the dynamic reaction speed can be increased.

Description

Technical field: [0001] The invention relates to a combined loudspeaker system of a double-basin-frame precision annular tube composite channel group, which belongs to the field of electroacoustic technology. Background technique: [0002] In daily life, people often use loudspeakers to reproduce sound. After the commonly used electric mid-bass paper cone speakers (including bass, mid-bass, mid-range speakers and full-range speakers, hereinafter referred to as speakers) are completed, the resonance frequency of the resonance system of its low-frequency force ω 0 It's OK, ω 0 Determines the lower limit of the frequency of the sound reproduced by this speaker, and usually takes the speaker installed on the infinite baffle as a reference, indicating that the speaker frequency ω 0 and other indicators. In this case, the loudspeaker placed on the infinite baffle directly radiates and transmits sound to the air in the front and rear directions freely, and its ω 0 =, M M Ind...

AI Technical Summary

Problems solved by technology

However, because there is a connection gap between the speaker frame, the upper magnetic guide plate and the magnet in the channel, and the upper end surface of the upper magnetic guide plate and the magnet has a reflective surface facing the vibrating body, this is formed by means of these exposed parts of the speaker. The channel is not smooth, and the sound waves are reflected here and cause distortion and sound energy loss. Due to the uncertainty of these distortions and sound energy loss, it affects the acoustic variable transducer implied by CA. The accuracy of the transformation effect

[0021]Third, the sound compliance component CA, the existing problems cause distortion and affect the radiation efficiency, which itself is also helpful for reducing the resonance frequency of the speaker Does not help and also complicates the equivalent circuit, which is not conducive to the simplification and intuitive analysis of the problem

The aforementioned distortion and loss of sound energy, affecting the quality and ability to reproduce sound

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