Sound box body structure capable of improving the low frequency of a sound box

Abstract

The invention discloses a sound box body structure capable of improving the low frequency quantity of a sound box. The device comprises a first cylinder body, a second cylinder body and a third cylinder body are arranged in the first cylinder body respectively; the height of the first barrel body is greater than that of the second barrel body; the height of the second barrel body is greater than that of the third barrel body; furthermore, the first barrel body is provided with a first baffle; wherein the diameter of the first barrel body is gradually reduced, the diameter of the second barrelbody is sequentially reduced, the third barrel body is fixedly connected with the second barrel body through an annular sealing plate, a loudspeaker is fixedly arranged on the second barrel body, a connecting column is arranged on the outer wall of the second barrel body, a sliding button is arranged on the connecting column, and a groove is formed in the sliding button. The frequency and energy control device has the advantages that the structure is simple, complex design is not involved, and control over frequency and energy can be achieved by controlling the distance between the second barrel body and the first barrel body. And when the sound box is debugged, the position of the arc-shaped baffle plate is changed according to listening, and the exposed number of the sound through holesis adjusted. And a better sound box can be designed.

Description

technical field [0001] The invention relates to the field of electro-acoustic technology, in particular to a sound box structure for improving the low-frequency volume of the sound box. Background technique [0002] A speaker is a device that converts audio electrical signals into sound signals. It mainly consists of a cabinet and a speaker. [0003] At present, there are several ways to improve the low frequency of speakers; [0004] 1. The labyrinth box structure is a speaker structure aimed at boosting a certain frequency, and the boosting effect is more obvious. The main disadvantage is that the structure is complicated, the design is difficult, and the box body is usually heavy and bulky. [0005] 2. Use a passive cone, which is a way to add a passive speaker to the speaker, mainly to increase the low frequency of the speaker. It is mainly used in the structure of the small-caliber speaker speaker. A sense of delay, a sense of disconnection, and increased costs. Mo...

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Problems solved by technology

The main disadvantage is that the structure is complex, the design is difficult, and the box is usually heavy and bulky

[0005] 2. Use a passive cone, which is a way to add a passive speaker to the speaker, mainly to increase the low frequency of the speaker. It is mainly used in the structure of the small-caliber speaker speaker. Sense of delay, sense of disconnection, increased cost

[0007] 4. Inverted tube speaker structure, which is a kind of increased inverted tube, so that the required low-frequency sound is emitted from the inverted tube, increasing the sense of low-frequency volume. This cabinet structure is very practical for large-caliber speakers, but the low-frequency sound of small-caliber speakers The improvement effect is not obvious

[0008] 5. The problem of speaker sound field propagation. At present, the installation position of speaker speakers on the market is mostly on the side of the box, resulting in directional transmission of sound in the speaker, so that the listening space should be based on the principle of sound interference, which makes the listening area unbalanced.

[0010] Due to the limitation of the installation position of the speaker, the speaker on the market has a single shape and does not have better artistic value, so the speaker is only a function of the speaker.

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