Electro-acoustic actuator and method for manufacture

An actuator, electro-acoustic technology, applied in electret electrostatic transducers, sensors, electrical components, etc., can solve the problems of high resonance frequency, field restrictions, high unit price, and achieve cost saving, power saving cost, unit price low effect

Active Publication Date: 2007-07-04
VERISONIX
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Today's loudspeakers are mainly divided into three types according to the driving method: dynamic, piezoelectric and electrostatic; among them, the dynamic loudspeaker is currently the most widely used and the technology is relatively mature. Its main driving principle is based on Fleming ( Fleming's left-hand rule, using the interaction of magnetic field, current and force at right angles to control the repeated movement of the vibrating membrane piston; but at present, dynamic speakers are widely used in various TVs, audio, headphones and mobile phones , because of its fixed structure, the volume cannot be reduced, making it unable to meet the needs of future 3C products for volume flattening
[0003] Piezoelectric speakers use the piezoelectric effect of piezoelectric materials. When an electric field is added to the piezoelectric material in the piezoelectric speaker, the piezoelectric material will be deformed, thereby pushing the diaphragm to sound; although this piezoelectric The speaker structure is flat and miniaturized, but due to the high resonance frequency required by the

Method used

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  • Electro-acoustic actuator and method for manufacture
  • Electro-acoustic actuator and method for manufacture
  • Electro-acoustic actuator and method for manufacture

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Embodiment

[0017] Fig. 1, Fig. 2A and Fig. 2B, Fig. 3A and Fig. 3B are related drawings of the electroacoustic actuator of the present invention, and these drawings cooperate to describe the embodiment of the electroacoustic actuator of the present invention in detail. It should be noted that these drawings are all simplified diagrams, illustrating the basic structure of the present invention in a schematic manner. Therefore, these drawings only show components related to the present invention, and the components shown are not drawn with the number, shape and size ratio of the actual implementation, and the number, shape and size ratio of the actual implementation are a kind of selective design , its component layout shape may be more complex.

[0018] Fig. 1 is the sectional structural diagram of electroacoustic actuator of the present invention, and electroacoustic actuator 1 of the present invention emits sound after receiving two in-phase or anti-phase AC audio voltages output by an ...

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PUM

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Abstract

The invention relates to an electric-sound activator and relative production, used in sound amplifier, wherein the activator receives two common-phase/reverse alternative voice voltages from sound amplifier to generate sound; and the invention comprises a film vibrator, two conductive back plates and two insulators. Its production comprises that: forming film vibrator, charging two side faces of vibrator, setting two insulators at two sides of vibrator and setting the back plates at two sides of insulators. The invention can save energy and reduce cost.

Description

technical field [0001] The present invention relates to an electroacoustic actuator and its manufacturing method, in particular to an electroacoustic actuator which is applied in an audio amplifier and is provided with a plurality of nanometer holes, and has an electret material composition and the electroacoustic actuator. method. Background technique [0002] Today's loudspeakers are mainly divided into three types according to the driving method: dynamic, piezoelectric and electrostatic; among them, the dynamic loudspeaker is currently the most widely used and the technology is relatively mature. Its main driving principle is based on Fleming ( Fleming's left-hand rule, using the interaction of magnetic field, current and force at right angles to control the repeated movement of the vibrating membrane piston; but at present, dynamic speakers are widely used in various TVs, audio, headphones and mobile phones , because of its fixed structure, the size cannot be reduced, m...

Claims

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Application Information

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IPC IPC(8): H04R19/01H04R31/00
Inventor 姜达铭李芳庆杨丰兆陈振銮
Owner VERISONIX
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