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Planar loudspeaker

A flat-panel speaker, sounding board technology, applied in the direction of sensors, electrical components, etc., can solve the problems of poor reliability, high cost, large volume of high-fidelity speakers, and achieve the effects of convenient processing, thin body, and low distortion

Inactive Publication Date: 2015-07-29
朝阳聚声泰(信丰)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, high-fidelity speakers designed and manufactured with traditional speakers are large in size, high in cost, and poor in reliability.

Method used

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  • Planar loudspeaker

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Embodiment Construction

[0017] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. Such as figure 1 As shown, a flat-panel speaker includes a sounding board 1, an annular conductive coil 2, a soft magnet 3, a voice coil 4, a bias coil 5, a sliding resistor Rw, a resistor R1, a super-audio oscillator circuit 6 and a power amplifier circuit 7. The annular conductive coil is arranged on the sounding board, the soft magnet has an opening, the sounding board is placed at the opening, a voice coil and a bias coil are respectively wound on the soft magnet, and the voice coil and the The overfrequency oscillation circuit is connected, and the bias coil is connected with the power amplifier circuit through a sliding resistor Rw and a resistor R1.

[0018] Such as figure 2 As shown, in the present invention, the power amplifying circuit includes a resistor R, a resistor RC, a sliding resistor R...

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Abstract

The invention relates to the technical field of loudspeaker box manufacture, in particular to a planar loudspeaker comprising a soundboard, an annular conducting coil, a soft magnet, a voice coil, a bias coil, a slide resistor Rw, a resistor R1, a super-audio oscillation circuit and a power amplification circuit. The annular conducting coil is disposed on the soundboard, the soft magnet is provided with an opening, the sound board is disposed at the opening, the soft magnet is wound with the voice coil and the bias coil, the voice coil is connected with the super-audio oscillation circuit, and the bias coil is connected with the power amplification circuit through the slide resistor Rw and the resistor R1. The planar loudspeaker has the advantages of wide frequency response, high power, small distortion, thin body, arbitrary shape, simple structure, processing convenience, difficulty in damage, no magnetic disturbance and the like.

Description

technical field [0001] The invention relates to the technical field of sound box manufacturing, in particular to a flat panel speaker. Background technique [0002] The traditional loudspeaker uses a voice coil to drive a paper cone with a fixed size to produce sound. Its own structure and characteristics determine that the loudspeaker cannot be flattened and miniaturized. Secondly, the fixed diameter of the vibrating basin makes the passband of the speaker very narrow, and the amplitude-frequency characteristics are very poor. The loudspeaker is realized by frequency division combination. The voice coil is a pusher and a part of the sounding body. Its own mechanical structure and performance have conflicts, especially in high-fidelity systems. To achieve a large dynamic range, the power is required to be large, so the voice coil The mechanical strength requirement is high, and the coil has to be made stronger, but the mechanical inertia of the voice coil increases, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
Inventor 康良军
Owner 朝阳聚声泰(信丰)科技有限公司
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