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A quadruple acoustic fusion subwoofer

A subwoofer and sound wave technology, applied in the direction of frequency/direction characteristic devices, etc., can solve the problems of unsatisfactory bass effect and waste, and achieve the effect of light weight, good bass effect and reduced distortion

Active Publication Date: 2018-01-16
SHEN ZHEN NEUSOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the "Practical Loudspeaker Technical Manual" published by National Defense Industry Press in June, 2006, the closed low frequency speaker (244-247 pages), the open type low frequency speaker (248-255 pages), the transmission line low frequency speaker (259-259 pages) are disclosed. 261) and band-pass subwoofers (page 247), in which closed subwoofers, vented subwoofers and transmission line subwoofers are all single-cabinet speakers, and the front of the speaker diaphragm of these speakers is exposed to the atmosphere. It is good for the midrange and treble, and the bass is wasted for the bass because it is not enhanced by the speaker
However, the band-pass low-frequency speaker has only one sound outlet, which is only a single-channel bass enhancement, and the bass effect is not ideal.

Method used

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  • A quadruple acoustic fusion subwoofer
  • A quadruple acoustic fusion subwoofer
  • A quadruple acoustic fusion subwoofer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , figure 2 As shown, the quadruple sound wave fusion bass box of the present invention can be made of wooden materials (such as medium density board or high density board), and can also be made of plastic injection molding. The present embodiment is made of wooden materials; the sound box includes inner and outer nesting Two independent boxes, that is, the first box 1 and the second box 2, wherein the first box 1 is provided with a first sound outlet 5, and the first box 1 is installed inside the first box 1 A sound guide tube 3, one end of the first sound guide tube 3 is connected to the first sound outlet 5, and the other end is a free end located in the first box body 1; the second box body 2 is located in the first box body 1 , forming a box-in-box structure in which a large box covers a small box. The second box body 2 is provided with a second sound outlet 6, and a second sound guide tube 4 is installed inside the second box body 2. The second s...

Embodiment 2

[0039] Such as image 3 , Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that in the first, second, third, and fourth speaker groups 7, 9, 16, and 17, each speaker group is composed of two speaker units. At this time, the connection method of the eight speaker units can be as follows: Figure 11 As shown, two loudspeaker units in each loudspeaker group are connected in series, and each loudspeaker group connected in series is then electrically connected to the audio power amplifier 11 in parallel with each other; Figure 12 As shown, the two loudspeaker units in each loudspeaker group are connected in parallel, and each loudspeaker group connected in parallel is then electrically connected to the audio power amplifier 11 in parallel with each other; or as Figure 13 As shown, two speaker units in each speaker group are connected in series, and the connected speaker groups are connected in series to each other and electrically connected to the ...

Embodiment 3

[0041] Such as Figure 5 , Figure 6 As shown, the difference between this example and Embodiment 1 is that the first and second loudspeaker groups 7 and 9 are symmetrically installed on the upper box plate 8 and the lower box plate 10 opposite to the second box body 2, and the first and second loudspeaker groups 7 , 9 are diaphragm-to-diaphragm settings, that is, the first and second speaker groups 7 and 9 are located outside the second box body 2, and the third and four speaker groups 16 and 17 are symmetrically installed on the left box plate of the second box body 2 13 and the right box plate 14 are magnet-to-magnet settings, that is, the third and fourth loudspeaker groups are in the second box body 2. At this time, to achieve the purpose of sounding in phase, the connection can be as follows: Figure 10 As shown, that is, the first and second speaker groups 7 and 9 are connected in series, the third and fourth speaker groups 16 and 17 are connected in series, and each ...

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Abstract

The invention relates to a sound box, in particular to a quadruple sound wave fusion subwoofer box which emits sound through electro-acoustic conversion. The sound guide pipe and the sound outlet are connected and conduct the sound flow between the ambient atmosphere and the respective boxes, wherein the second box is located in the first box, and four groups of four boxes are installed on the four boxes of the second box The speaker groups electrically connected with the audio power amplifier, each speaker group emits sound in the same phase, and is symmetrically arranged relative to the speaker groups on the box board. In the present invention, after the audio amplifier is driven, four sets of relative speaker diaphragms vibrate, thereby generating four sets of relative sound wave airflows. The sound tube and the two sound outlets emit low-frequency sound waves, which greatly enhance the low-frequency sound waves and reduce the volume and weight of the speaker.

Description

technical field [0001] The invention relates to an audio sound box, in particular to a quadruple sound wave fusion low sound box which emits sound through electro-acoustic conversion. Background technique [0002] We all know that bass is the most important part of the modern audio spectrum. In order for the speaker to reproduce the sound well, the bass must be reproduced well, otherwise it will be difficult to achieve ideal reproduction. [0003] At present, basically all are single-cabinet and double-cabinet woofers or subwoofers. In order to achieve a better bass playback effect, it has to use larger-sized (such as 8-inch to 15-inch) speaker units; The volume of the speaker is large, the quality is heavy, and the cost is high at the same time, and the bass effect is not good. [0004] In "Advanced Design and Production of Loudspeaker System" published by People's Posts and Telecommunications Press in February, 2013, a multi-speaker system sound box (78-92 pages) and a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/20
Inventor 郑全录
Owner SHEN ZHEN NEUSOUND
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