Sound equipment actuating device and sound equipment actuating device system

Abstract

The invention relates to a sound equipment actuating device and a sound equipment actuating device system.The sound equipment actuating device comprises an actuating element.The actuating element comprises a piezoelectric unit equipped with at least one piezoelectric component and a film unit equipped with one or more film components.The film component is fixedly pasted on the piezoelectric unit.When current is applied on the piezoelectric unit, the film component is in a wave motion.A support member is attached to the actuating element to support the actuating element.An edge component is connected with the actuating element.The sound equipment actuating device system comprises a first sound equipment actuating device and a second sound equipment actuating device driven together with the first sound equipment actuating device.According to the invention, the characteristic of the low frequency sound equipment is improved by connecting a support member and an edge member to the actuating element.The flatness of the frequency bandwidth is also improved by the asymmetric connection of a plurality of piezoelectric units.Meanwhile, the volume of the sound is improved by the parallel arrangement of the actuating elements.

Description

technical field [0001] The present invention relates to an acoustic actuating device utilizing an actuating element of a film unit bonded to a piezoelectric unit, and more particularly relates to an actuating element connecting a supporting part and an edge part so that the actuating element performs wave motion to generate Acoustic actuator for broadband sound. Background technique [0002] Generally speaking, sound (Sound) refers to the wave that propagates with the elastic body as the medium, also called "sound" or "sound wave", which is a vibration phenomenon of fluid transmitted through the medium. Not only humans, animals also have auditory organs, so animals can also perceive sound, but different animal species have different frequency ranges from the sounds that humans can hear. Generally, the audible frequencies in the frequency domain that people can hear are 20 Hz to 20,000 Hz. [0003] A general speaker generates sound by repeatedly advancing / retreating a vibra...

AI Technical Summary

Problems solved by technology

However, due to poor low-frequency characteristics, it is not suitable for speakers with a wide frequency band.

[0008] In addition, since the flatness (flatness) in the frequency is low, the sound having a specific frequency can be reproduced, but the sound of other frequencies cannot be reproduced sometimes.

That is, not all sounds with various frequencies can be reproduced

[0009] Not only that, but the sound pressure is not high due to the use of a single vibrating plate in the prior art, so the sound is too small to be used as an audio speaker

[0010] In addition, people try to improve the low-frequency characteristics by using the piezoelectric element as a vibrating body and using the support member to transmit the generated vibration to the panel (Panel), but this method requires an additional design of the panel, and the panel needs to be combined with other components. components so that their vibrations are damped or their vibrations degrade the electrical or mechanical properties of other components

[0011] That is, although the panel can be used alone like a speaker, when it is used as a part of another product, it is not a separate part but a part of the product, so the overall design of the product is difficult, and an independent speaker is required

Images