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Sound device

A technology of a sounding device and a loudspeaker, which is applied in the field of acoustics, can solve the problems of low sounding energy and efficiency of the sound box, loss of sounding energy of the speaker, etc., achieve great practical value, increase the sounding energy and sound efficiency, and improve the effect of acoustic performance

Active Publication Date: 2019-02-15
BEIJING TAIHE KAIYUAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since the structural design of modern speakers is based on the theory of infinite baffles, the theoretical basis is to suppress the back-to-back sound waves of the speakers, that is, to shield the energy of the back-to-back sound waves of the speakers through the airtight speaker, which causes the loss of sound energy of the speakers. Therefore, modern speakers The vocal energy and efficiency are very low

Method used

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Embodiment 1

[0014] figure 1 It is a schematic structural diagram of the sound generating device provided in Embodiment 1 of the present invention. Such as figure 1 As shown, the present invention provides a sound generating device, comprising: a housing 1, a loudspeaker 2, and at least one guide plate 3; the housing 1 is provided with a first hole 11 and at least one second hole 12, and the loudspeaker 2 is fixed on the first In the hole 11, the second hole 12 is distributed in a predetermined range around the first hole 11; each guide plate 3 is arranged on the inner surface 13 of the housing 1 on the side of the speaker 2, and one end of the guide plate 3 is connected to the shell The body 1 is connected, and the other end of the guide plate is a free end 31, so that the sound wave of the loudspeaker 2, which faces away from the guide plate, bypasses the free end 31 of the guide plate and passes through the second hole 12.

[0015] It should be noted that the sound generating device o...

Embodiment 2

[0022] figure 2 It is a schematic structural diagram of the sound generating device provided by Embodiment 2 of the present invention. Such as figure 2 As shown, the present invention provides a sound emitting device. On the basis of Embodiment 1, further, the free end 31 of the guide plate 3 is in the shape of an arc. The arc-shaped structure can make the back sound wave of the loudspeaker 2 bypass the free end 31 of the guide plate 3 as smoothly as possible, retain the original waveform characteristics of the back sound wave to the greatest extent, and make the back sound wave be in the form closest to the original state Intersect with the forward sound wave.

[0023] The sounding device may further include: guide blocks 4, which are arranged at each corner of the inner surface 13 of the casing, and the shape of the guide block 4 matches each corner of the inner surface 13 of the casing, and has a concave arc surface. The guide block 4 can reduce the reflection and coll...

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Abstract

The invention provides a sound production device, which comprises a shell, a loudspeaker and at least one guide plate, and is characterized in that the shell is provided with a first hole and at least one second hole, the loudspeaker is fixed in the first hole, and the second holes are distributed within a preset range around the first hole; the guide plates are arranged at the inner surface of the side, at which the loudspeaker is located, of the shell, one ends of the guide plates are connected with the shell, and the other ends of the guide plates are free ends, thereby enabling backward sound waves of the loudspeaker to bypass the free ends of the guide plates and penetrate out from the second holes. The sound production device provided by the invention can realize that the backward sound waves of the loudspeaker are reversed into forward sound waves, the acoustic performance of the loudspeaker is improved, and the sound production energy and the efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of acoustics, in particular to a sound generating device. Background technique [0002] The traditional sound generating device, such as a loudspeaker, is a sound generating device with very low sound generation efficiency. The improvement of its sound generation efficiency can be improved by installing it in a speaker. The theoretical basis of traditional speaker design is the Infinite Baffle theory. That is, an infinite baffle is placed between the forward and back sound waves of the speaker diaphragm to block the forward and back sound waves to prevent the two from canceling each other in the air; Fold the speaker back to the direction of the sound wave to form a closed space, block the speaker from the back of the sound wave, completely release the energy of the speaker's forward sound wave, and thus obtain the structure of the modern speaker. [0003] Since the structural design of modern speakers is b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06
Inventor 杨玉功
Owner BEIJING TAIHE KAIYUAN TECH