Elastic film sound production medium motor-driven panel loudspeaker

A flat-panel speaker, elastic film technology, applied in the direction of sensors, electrical components, etc., to achieve the effect of power reduction, volume reduction, and good transient response

Inactive Publication Date: 2013-01-23
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

[0004] In order to overcome the contradiction between "lightness" and "rigidity" of the sounding medium material of the existing electric panel speaker, the present invention proposes an elastic film sounding medium electric panel speaker

Method used

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  • Elastic film sound production medium motor-driven panel loudspeaker
  • Elastic film sound production medium motor-driven panel loudspeaker

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Experimental program
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Embodiment Construction

[0011] figure 2 Middle: The sounding film (5) is stuck on the fixed frame (1) through strong glue (6) and is in a tense state; the voice coil (4) is stuck on the sounding film (5) through strong glue (6) ; The magnetic steel (3) is stuck on the elastic connecting piece (2) through strong glue (6); the elastic connecting piece (2) is elastically fixed on the fixed frame through the upper pressing plate (7) and the concave lower pressing plate (8) (1) on.

[0012] figure 2 Shown upper block pressing plate (7) is to press elastic connecting piece (2) in the groove of concave lower pressing plate (8), so that adjust the elasticity of elastic connecting piece.

[0013] figure 1 When the middle sound film (5) is made of non-metallic flexible material such as polyester, its surface is coated with a layer of sealant (9), so as to avoid air leakage when vibrating and sounding.

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PUM

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Abstract

The invention discloses an elastic film sound production medium motor-driven panel loudspeaker. Magnetic steel (3) is provided with a voice coil (4), and the voice coil (4) pushes a sound production medium to produce sound. The elastic film sound production medium motor-driven panel loudspeaker is characterized in that the pushing voice coil (4) of the loudspeaker is directly pasted on a sound production film (5) which has the thickness of less than 0.1mm and is made of stainless steel or aluminum or other thinner nonmetal flexible materials, such as terylene; the sound production film (5) is tightened to a fixed frame (1); and the magnetic steel (3) of the motor-driven panel loudspeaker is also suspended on the fixed frame (1) through an elastic connecting sheet (2). According to the invention, because the elastic state of the sound production medium overcomes the division distortion caused by light and thin materials, the manufactured panel loudspeaker is extremely high in sound production efficiency, is good in transient response, is wide in voice range, and has pleasing sound; the manufacturing technology is simple and is low in cost; and because the loudspeaker is high in efficiency, the power of audio frequency power amplifier can be lowered greatly, the volume of power amplifier can be reduced, and energy is saved.

Description

Technical field [0001] The invention relates to an electroacoustic device, in particular to an electric flat-panel loudspeaker with an elastic film sounding medium. Background technique [0002] At present, most of the known electric flat panel speakers use honeycomb aluminum boards, cardboards, wood boards, etc. as sounding medium materials. These materials are characterized by being "light" and having a certain "rigidity". Although these sounding medium materials can make the sound pressure and sound range of the electric flat panel speaker meet the requirements of general civilian use, a significant disadvantage of these materials is that the sound generation efficiency is low. Under the same driving power, the sound pressure per unit area is not as good as the traditional one. Paper cone speakers. And the transient sound and sound range indicators are not ideal. This limits the use of electric flat panel speakers in flat panel TVs or other high-end audio. In particul...

Claims

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Application Information

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