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Electrodynamic flat panel loudspeaker using transparent sound production medium and realization method thereof

A flat-panel speaker, transparent medium technology, applied in electromechanical sensors, TVs, sensors, etc., to achieve the effect of wide sound range, better timbre, and accurate sound image positioning

Inactive Publication Date: 2011-10-05
深圳市辉煌电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But can glass, plexiglass or other transparent materials make sound? If it can produce sound, in order to obtain the best sound effect, how should the material, material thickness and material area be selected? If the front panel of the casing of the LCD TV and the mobile phone with LCD screen is used as the sounding board of the electric flat panel speaker at the same time, how to solve the vibration problem of the casing and even the whole product? In addition, in the use of LCD TVs and mobile phones with LCD screens, electric flat-panel speakers must not only ensure that they have sufficient vibration space, but also avoid vibration damage to their normal working conditions, that is, the stability and reliability of work. The problem that the present invention needs to solve practically

Method used

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  • Electrodynamic flat panel loudspeaker using transparent sound production medium and realization method thereof
  • Electrodynamic flat panel loudspeaker using transparent sound production medium and realization method thereof

Examples

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Embodiment Construction

[0024] Taking a 22-inch LCD flat-panel TV as an example to illustrate the selection of materials for the sounding board of the transparent sound-emitting medium electric flat-panel speaker and the installation method of the speaker.

[0025] The front panel size of the 22-inch LCD flat-panel TV is 502mm×382mm, the electrical output power of two-channel and mono-channel audio is 5W, the sound pressure index is 84dB, and the sound range index is 125-7000Hz. In this example, plexiglass is selected as the sound-emitting medium material.

[0026] The specific coefficient k of the simple empirical calculation formula is deduced through experiments to be 17mmdB / w. The conditions for the use of the formula are: the audio output power is 5W, and the area of ​​the sounding board of the speaker is 0.1-0.2m 2 between.

[0027] According to the size of the front panel of the TV casing, it can be determined that the area of ​​the sounding board of the electric flat panel speaker is 500mm ×...

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Abstract

The invention discloses an electrodynamic flat panel loudspeaker using a transparent sound production medium, a method for determining the material, area, thickness and reinforcing ribs of a transparent medium sound production plate made of the loudspeaker, a mounting method for the loudspeaker and a corresponding computational formula. After transparent materials such as glass, organic glass, transparent polycarbonate and the like are confirmed to be selected and arranged, good sound production effects can be achieved. The sound production plate of the electrodynamic flat panel loudspeaker is concealed, so the electrodynamic flat panel loudspeaker can be widely used for products such as a liquid crystal flat panel television set, a mobile phone with a liquid crystal screen and the like, and endows the products with a thinner and more fashionable shape. Moreover, the sound production medium has a large area and high vibration conductivity, and a sound production surface is overlapped with an image, so the product has a wider vocal range and higher tone quality, greatly increases positive sound pressure and more accurately positions a sound figure. In addition, the loudspeaker is suitable for occasions such as bank counters, meeting rooms in prisons and the like in which the sense of sight and the sense of hearing cannot be obstructed and are required to be isolated.

Description

Technical field [0001] The present invention relates to an electric flat-panel loudspeaker with a transparent sounding medium, in particular to an electric flat-panel loudspeaker with a transparent sounding medium used by household appliances with both video and audio functions, such as a liquid crystal television and a mobile phone with a liquid crystal screen. Background technique [0002] At present, most of the known electric flat panel speakers use honeycomb aluminum plate or cardboard, wood board, etc. as the sound medium material. Although these sound-emitting medium materials can make the volume and sound range of electric flat panel speakers meet the requirements of general civilian use, and their thickness can be made very thin, these materials are opaque, and they are used in products such as LCD TVs and mobile phones with LCD screens. , because it cannot be installed in front of the LCD screen, it must occupy the surface area of ​​the corresponding product, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R7/00H04R9/02H04N5/64H04M1/02
Inventor 邓清辉
Owner 深圳市辉煌电子有限公司
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