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Acoustic transducers with bend limiting member

A technology of acoustic transducers and transducers, applied in piezoelectric-electric polymer transducers, transducer diaphragms, bending wave sensors, etc., can solve problems such as easy damage

Inactive Publication Date: 2016-01-06
EMO LABS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Piezoelectric transducers, for example, contain ceramic components that can be easily damaged by, inter alia, excessive strain due to impact forces

Method used

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  • Acoustic transducers with bend limiting member
  • Acoustic transducers with bend limiting member
  • Acoustic transducers with bend limiting member

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Embodiment Construction

[0034] The present invention generally relates to acoustic transducers. In certain embodiments, the transducers of the present invention have a curved piezoelectric actuator, wherein the diaphragm is curved, the piezoelectric actuators are mechanically attached to the diaphragm, and wherein the piezoelectric actuators move against each other Between two actuators or between an actuator and a support, the movement of the midpoint of the diaphragm is mechanically amplified relative to the movement of the actuator by means of the mechanical configuration of the transducer. This transducer is then called a mechanically amplified transducer. Figure 1-Figure 7 An exemplary acoustic transducer of the present invention is shown. The transducer of the present invention may include a support 100 . The support can be as Figure 1-Figure 7 base shown in . A transducer of the present invention may receive one or more audio signals thereof via a wired or wireless connection to a signal...

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Abstract

The invention generally relates to acoustic transducers. In certain aspects, the acoustic transducer includes a diaphragm and a piezoelectric actuator coupled to the diaphragm to cause movement of the diaphragm. In certain aspects, the transducer also includes a member that limits bending of the actuator.

Description

[0001] Related applications [0002] This application claims the benefit of and priority to US Provisional Patent Application No. 61 / 791,355, filed March 15, 2013, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to acoustic transducers with components that limit the bending of the actuator. Background technique [0004] A speaker is a transducer that produces sound in response to an electrical audio signal input. The vast majority of loudspeakers in use today are electromagnetic transducers. This category, known as dynamic loudspeakers, has remained largely unchanged since the 1920s. Typically, a linear motor, such as an electromagnetic or electrostatic motor, actuates the diaphragm to cause the speaker to emit sound waves. [0005] Recently, a new class of mechanical transducers has been developed. Those transducers may have actuators that may be coupled to the speaker diaphragm or may be coupl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06
CPCH04R7/045H04R1/24H04R2307/021H04R2307/023H04R2307/025H04R2307/027H04R7/18H04R2400/11H04R2440/05H04R2217/01H04R7/12H04R1/026H04R1/22H04R5/00H04R17/005H04R17/00H04R7/16H04R9/066H04R1/00
Inventor T·K·琼斯S·博坎波尔
Owner EMO LABS