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Multi-point excitation loudspeaker array

A loudspeaker array and loudspeaker technology are applied in the field of loudspeaker and multi-point excitation loudspeaker array to achieve the effect of improving sound pressure level, good frequency response and high sound pressure level

Active Publication Date: 2014-04-02
WUXI JIEFU ELECTROACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the installation space left for speakers by flat-panel TV products is getting thinner and smaller, the speaker array structure for flat-panel TVs is required to be as compact as possible, and the above-mentioned speaker arrays are not suitable for flat-panel TV products.

Method used

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  • Multi-point excitation loudspeaker array
  • Multi-point excitation loudspeaker array

Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0021] As shown in the figure, the multi-point excitation speaker array in the embodiment is mainly composed of a rear cavity 1 , a front cavity 2 , a speaker unit 3 and screws 4 .

[0022] Such as Figure 1~3 As shown, the front cavity body 2 and the rear cavity body 1 are tightly combined and fixed to form a basin frame. Five independent sound chambers are arranged in the basin frame, and five small-diameter tubes with the same size and specifications are correspondingly installed in the five sound chambers. Loudspeaker unit 3; the front cavity 2 is divided into five front half sound chambers 2b by four equidistantly distributed front chamber partitions 2a, and the speaker unit 3 is fixed on the panel of the front half sound chamber 2b with screws 4; The rear chamber body 1 is divided into five rear half-sound chambers 1b by four equidistantly distributed re...

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Abstract

The invention relates to a multi-point excitation loudspeaker array which is characterized in that: the array comprise a basin rack which is provided with at least five independent sound cavities, a number of the sound cavities is an odd number, each sound cavity is provided with a loudspeaker unit, all loudspeaker units are arranged in straight lines in the basin rack and are on a same installation plane, and distances between adjacent loudspeaker units are same. The invention has the characteristics of ingenious structure, simplicity and compactness, the loudspeaker units are arranged in an easily realized mode, when adding the loudspeaker units, small directive change of the whole array is ensured, total harmonic distortion and unevenness of the array are decreased, thus a sound pressure level of the array is raised, sound quality and reliability are ensured, and the array can be designed as a component integrated in a flat television or an external accessory of the flat television to improve the sound quality further. The multi-point excitation loudspeaker array has the advantages of good frequency response, excellent directive, large bearing power, small distortion, a high sound pressure level and the like.

Description

technical field [0001] The invention belongs to the field of electro-acoustic technology, and relates to a loudspeaker, in particular to a multi-point excitation loudspeaker array with a plurality of small-diameter loudspeaker units for a flat-panel TV. Background technique [0002] In the prior art, flat-panel TV products usually use a single small-diameter speaker, which has the disadvantages of low maximum sound pressure level, large distortion, and unsatisfactory medium and high frequencies; however, when multiple speakers are used to form a "sound column" array, although the maximum sound pressure can be increased level, but the directivity is narrow due to interference between multiple speakers. In particular, the "sound column" array of horizontally placed speakers of the popular flat-panel TVs can easily produce side lobes, resulting in chaotic sound field distribution and poor sound quality. In order to improve the high-frequency directivity of the loudspeaker arra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/02H04N5/60
Inventor 蒋加星蒋正祥蔡禄军
Owner WUXI JIEFU ELECTROACOUSTIC
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