Coaxial cylindrical wave horn

A cylindrical wave, coaxial technology, applied in the direction of frequency/direction characteristic devices, etc.

Pending Publication Date: 2021-05-07
深圳市艾比欧视听科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the aforementioned prior art is only applicable to the application of spherical waves emitted by point sound sources, and the coaxial horns of the line sound source and the cylindrical wave in the modern sound reinforcement system also need to combine the characteristics of the line sound source and the cylindrical wave to make a corresponding response. design

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0030] Such as figure 1 , a schematic diagram of a point sound source and a spherical wave, as shown, the wave front generated by the point sound source 2 is a concentric sphere, which is called a spherical wave. Imagine a spherical sound source in an infinite homogeneous medium, its surface expands and contracts rapidly, and every point on the surface vibrates with the same phase and amplitude, and the wave radiating to the surrounding medium is a spherical wave. This sound wave is spherically symmetrical, that is, the magnitude of the sound pressure is only related to the distance from the center of the sphere. A sound source of any shape, as long as its size is much smaller than the wavelength, can be regarded as a point sound source, radiating spherical waves. For spherical waves, the sound intensity at any distance from the sound source is inv...

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Abstract

The invention provides a coaxial cylindrical wave horn, which comprises a medium-frequency cylindrical wave converter and a high-frequency cylindrical wave converter, the high-frequency cylindrical wave converter is embedded into the medium-frequency cylindrical wave converter, sound axes of the high-frequency cylindrical wave converter and the medium-frequency cylindrical wave converter coincide to form a coaxial structure in symmetric distribution, and outlets of the high-frequency cylindrical wave converter and the medium-frequency cylindrical wave converter are in the same plane. According to the horn, the intermediate-frequency sound axis and the high-frequency sound axis coincide to form a coaxial structure, the coupling characteristics of the intermediate-frequency converter and the high-frequency converter are optimized, and coaxial coupling of bicylindrical waves is achieved. After coupling, cylindrical wave characteristics are still kept, and the frequency range and precision of directivity control are remarkably improved.

Description

technical field [0001] The invention relates to a sound reinforcement device, in particular to a coaxial cylindrical wave horn. This horn makes the sound axes of the intermediate frequency and high frequency overlap to form a coaxial structure, which optimizes the coupling characteristics of the intermediate frequency converter and the high frequency converter, that is, realizes the coaxial coupling of double cylindrical waves. Background technique [0002] Traditional sound reinforcement system, such as the prior art, Chinese utility model patent, ZL201921547041.7, discloses a coaxial speaker. In this utility model patent, the bass voice coil is arranged in the pot frame, so that the bass voice coil and the pot frame are coaxially arranged, and the tweeter is arranged in the bass voice coil. The patented technology of this utility model enables the loudspeaker to simultaneously output the treble while outputting the bass, and the bass voice coil and the tweeter do not inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/20
CPCH04R1/20
Inventor 张祥奎梁广坤
Owner 深圳市艾比欧视听科技有限公司
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