Resonatron superimposed bass sound box and coaxial horn three-frequency division superimposed sound box

Abstract

The invention relates to the technical field of electroacoustic devices, and particularly relates to a resonatron superimposed bass sound box and a coaxial horn three-frequency division superimposed sound box. The bass sound box comprises a box body, and a woofer, a longitudinal lifting platform, a transverse isolation plate, a front transverse resonance plate and a back transverse resonance plate, which are arranged in the box body, and a resonatron cavity in a folded shape on the whole and of a uniform section structure is formed in the box body; and the superimposed sound box comprises the bass sound box and a horn sound box arranged on a top wall plate of the bass sound box. Due to the isolated design of the inner space of the box body, a resonatron superimposed effect can be formed in the box body to inhibit and even eliminate harmful standing wave frequency in the box body, control the box sound and improve the sound production efficiency of the loudspeaker; by the match of the horn sound box and the bass sound box and the improvement on the structure of the horn sound box, a common phase frequency division and superimposed effect of high, medium and low frequency bands of the entire superimposed sound box can be realized, all kinds of distortion in a full frequency band are reduced, the bearing power of the sound box is improved, and the tone quality effect of the sound box is reinforced.

Description

technical field [0001] The invention relates to the technical field of electro-acoustic devices, in particular to a resonant tube superimposed bass sound box and a coaxial horn three-frequency superimposed sound box formed based on the bass sound box. Background technique [0002] As a special derivative device in modern musical instruments, the speaker is used to convert audio electrical energy into corresponding sound energy, and finally radiate the sound energy into the environmental space, because its ultimate sense of hearing is like sound (music) On-site restoration is highly praised by the majority of music lovers, which has led to higher and higher requirements for its various performances (such as timbre, sound quality, cost, etc.). [0003] At present, the existing speakers are generally subject to the following problems due to the limitation of structural design and other factors: 1. The standing wave in the speaker box is difficult to suppress (that is: the box s...

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Problems solved by technology

[0003] At present, the existing speakers are generally subject to the following problems due to the limitation of structural design and other factors: 1. The standing wave in the speaker box is difficult to suppress (that is: the box sound is difficult to suppress), when the harmful standing wave in the box When the frequency is high, it will cause the sound to be muddy; 2. For the mid-bass horn speaker, its cavity sound is more obvious (that is, the horn cavity sound is difficult to suppress, that is, there is a peak in a certain frequency band, although the existence of the cavity sound can improve The pronunciation efficiency of the horn, ensuring the directivity of the sound and making the sound spread farther), for music lovers who pursue high-fidelity sound quality, the existence of the cavity sound will cause a serious nasal sound feeling, and the sound cannot be stretched; 3. For the traditional HiFi speaker structure design, the utilization efficiency of the woofer is low, and it is difficult to coordinate the sound and time phase of the three frequency bands of low, medium and high, resulting in low overall sensitivity of the speaker, which can only match high power 4. Due to the structural and design-oriented problems of the existing horn speakers, the mid-to-high speakers mostly use expensive compression heads, the crossover point is difficult to reach 250Hz, and the low-efficiency subwoofer body is difficult to choose And match the appropriate middle and high-pitched horn horn

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