Moving coil piezoelectric compound loudspeaker

A piezoelectric composite, speaker technology, applied in the field of speakers, can solve the problems of poor high-frequency sound quality of moving coil speakers, affecting the user's hearing experience, and limiting frequency response width, so as to improve the listening experience, simple structure, and improve sound and sound quality. Effect

Active Publication Date: 2016-09-28
常州市武进晶丰电子有限公司
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  • Abstract
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  • Application Information

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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 p

Method used

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  • Moving coil piezoelectric compound loudspeaker

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[0029] Example

[0030] figure 1 Is a cross-sectional view of a moving coil piezoelectric composite speaker provided by an embodiment of the present invention; figure 1 As shown, the moving coil piezoelectric composite speaker 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. The support plate 102 connects the housing 101 It is divided into a moving coil cavity 104 and a piezoelectric cavity 105. The moving coil cavity 104 is connected to the sound outlet 103; the moving coil cavity 104 is provided with a moving coil unit, and the piezoelectric cavity 105 is provided with a pressure 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 commo...

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Abstract

The invention relates to the technical field of loudspeakers, and especially relates to a moving coil piezoelectric compound loudspeaker. The moving coil piezoelectric compound loudspeaker comprises a shell and a supporting plate; the shell is provided with a sound outlet; the supporting plate is arranged at the inside of the shell; the supporting plate separates the shell into a moving coil cavity and a piezoelectric cavity; the moving coil cavity is communicated with the sound outlet; the inside of the moving coil cavity is provided with a moving coil unit; the inside of the piezoelectric cavity is provided with a piezoelectric vibrator; the supporting plate is provided with a sound guide hole; and the piezoelectric cavity is communicated with the moving coil cavity through the sound guide hole. According to the moving coil piezoelectric compound loudspeaker provided by the invention, the piezoelectric vibrator is added on the basis of an original moving-coil loudspeaker, and the piezoelectric vibrator compensates the sound effect and sound quality of the moving-coil loudspeaker at high frequency, so that the moving coil unit and the piezoelectric vibrator vibrate and produce a sound simultaneously to form a resonance, so as to widen the frequency response range and improve listening experience of users.

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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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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