Reflective Airborne Acoustic Horn
An air-acoustic and reflective technology, applied in the field of strong sound waves, can solve the problems of nonlinear distortion, poor low-frequency response, unsuitable for long-distance transmission of sound wave energy, etc., to achieve the effect of improving the sound wave directivity and the effect of sound collection
Active Publication Date: 2020-07-21
青海海清强声科技有限公司
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Problems solved by technology
The disadvantages of the existing air-acoustic horns are poor low-frequency response, narrow frequency band, and easy nonlinear distortion; long-distance transmission of high-intensity sound often cannot have good sounding directivity, and is not suitable for long-distance transmission of sound wave energy , and it is easy to cause acoustic trauma to the operator on the back of the sound source horn
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[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] An embodiment of the present invention provides a reflective airborne sound horn, see figure 1 , including: acoustic side wall 1, main reflector 2, tubular horn 3, guide plate 4 and reverser 5; the above components are coaxially arranged, that is, acoustic side wall 1, main reflector 2, tubular horn 3, guide The centers of the plate 4...
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The invention provides a reflective airborne acoustic horn. The reflective airborne acoustic horn comprises a sound gathering side wall, a main reflection part, a tubular horn, a guide plate, and an inverter, wherein the edge of one end opening of the cylindrical sound gathering side wall is connected with the outer edge of the circular main reflection part, the inner surface of the main reflection part takes on a para-curve, focal points of a paraboloid form annular focus in a plane, one end of the tubular horn is connected with the main reflection part, the annular guide plate is arranged onthe outer wall close to the other end, a wedge is arranged at the inner bottom of the inverter, and the inverter is installed with the wedge facing the main reflection part. The sound gathering sidewall, the main reflection part, the tubular horn, the guide plate and the inverter are configured coaxially. Through adoption of the reflective airborne acoustic horn, interaction between the pulse airflow generated by the airflow modulated sound source and air is enhanced, the airflow and the sound wave are reflected by the inverter and the main reflection part in sequence and are emitted in a direction parallel to the axis of the main reflection part finally, so that the sound wave is further directed, sound gathering effect is better, and sound wave emission efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of strong sound waves, in particular to a reflection-type air-acoustic horn suitable for long-distance transmission of low frequency and high sound intensity. Background technique [0002] The air sound horn is generally used to enhance the airflow modulation sound source, which can increase the directivity of the sound and has the effect of gathering the sound. The disadvantages of the existing air-acoustic horns are poor low-frequency response, narrow frequency band, and easy nonlinear distortion; long-distance transmission of high-intensity sound often cannot have good sounding directivity, and is not suitable for long-distance transmission of sound wave energy , and it is easy to cause acoustic trauma to the operator on the back of the sound source horn. Contents of the invention [0003] Aiming at the defects in the prior art, the present invention provides a reflective air-acoustic horn, which is su...
Claims
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IPC IPC(8): H04R1/34H04R9/06
CPCH04R1/345H04R9/06
Inventor 裘钧魏加华黄跃飞李铁键翁燕章王光谦倪增涛
Owner 青海海清强声科技有限公司