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Dynamic piezoelectric composite speaker

A piezoelectric composite, speaker technology, applied in the field of speakers, can solve the problems of frequency response width limitation, affecting the user's listening experience, poor high-frequency sound quality of moving coil speakers, etc.

Active Publication Date: 2021-05-28
常州市武进晶丰电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dynamic piezoelectric composite speaker to solve the technical problems existing in the prior art that the dynamic speaker has poor high-frequency sound quality, limited frequency response width, and affects the user's auditory experience

Method used

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  • Dynamic piezoelectric composite speaker

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Embodiment

[0030] figure 1 The cross-sectional view of the dynamic piezoelectric composite loudspeaker provided by the embodiment of the present invention; as figure 1 As shown, the moving coil piezoelectric composite loudspeaker provided by the present invention includes a housing 101 and a support plate 102, the housing 101 is provided with a sound outlet 103, the support plate 102 is arranged inside the housing 101, and the support plate 102 connects the housing 101 Separated into a moving coil cavity 104 and a piezoelectric cavity 105, the moving coil cavity 104 is connected to the sound outlet 103; For the electric vibrator, the support plate 102 is provided with a sound guide hole 106 , and the piezoelectric cavity 105 communicates with the moving coil cavity 104 through the sound guide hole 106 .

[0031] Loudspeaker, also known as "horn", is a very commonly used electroacoustic transducer. The speaker emits sound by vibrating, thereby changing the pressure of the surrounding ai...

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Abstract

The invention relates to the technical field of loudspeakers, in particular to a moving-coil piezoelectric composite loudspeaker. The moving coil piezoelectric composite speaker includes a housing and a support plate, the housing is provided with a sound outlet, the support plate is arranged inside the housing, and the support plate separates the housing into dynamic A coil cavity and a piezoelectric cavity, the moving coil cavity communicates with the sound outlet; a moving coil unit is arranged inside the moving coil cavity, and a piezoelectric For the vibrator, the support plate is provided with a sound guide hole, and the piezoelectric cavity communicates with the moving coil cavity through the sound guide hole. In the present invention, the piezoelectric vibrator is added to the original dynamic speaker, and the piezoelectric vibrator is used to compensate the sound effect and sound quality of the dynamic speaker at high frequencies, so that the dynamic unit and the piezoelectric vibrator vibrate and sound at the same time. Resonance is formed to widen the frequency response range and improve the user's listening experience.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a moving-coil piezoelectric composite loudspeaker. Background technique [0002] Loudspeaker, also known as "horn", is a very commonly used electroacoustic transducer. The speaker emits sound by vibrating, thereby changing the pressure of the surrounding air. The existing dynamic speaker has the characteristics of soft sound, good bass effect and low price, and has become the most productive variety in the field of speaker products. However, the sound quality of this kind of speaker is poor at high frequencies. The frequency response of ordinary dynamic speakers begins to drop at 8KHz, and the frequency response of even high-end dynamic speakers will begin to drop rapidly at 9.5KHz, which affects the user's listening experience. [0003] In view of this, those skilled in the art need to develop a dynamic piezoelectric composite speaker, which compensates the high-frequency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R17/00H04R1/32
CPCH04R1/323H04R9/06H04R17/005
Inventor 白志兴范景波刘淼卢裕平
Owner 常州市武进晶丰电子有限公司
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