A fan blade array graphene sounder

Abstract

The invention discloses a fan-type array graphene sounder, which includes a heating element and a thermosound element, the heating element and the thermosound element are electrically connected, and the thermosound element includes several thermosound elements arranged in an array unit, a transmission rod is arranged between the thermoacoustic units, the two ends of the thermoacoustic units are connected with handles, and the thermoacoustic units are hinged through the handles on both sides. When the heating element provides electrical signals to the thermoacoustic element, the thermoacoustic element generates periodic heat waves, and the heat transfer between the heat waves and the surrounding medium causes periodic expansion and contraction, thereby generating sound. The fan-type array graphene sounder of the present invention can well improve the output sound pressure level of the graphene sounder by forming multiple groups of graphene sounders into an array, and in addition, the basic unit can be rotated through the handle rod and the transmission rod , can change the sound transmission direction of the graphene sound generator.

Description

technical field [0001] The invention discloses a fan-blade array graphene sounder, which relates to the technical field of micro-device equipment. Background technique [0002] In 2004, as two scientists from the University of Manchester in the United Kingdom used mechanical exfoliation for the first time to obtain graphene composed of only one layer of carbon atoms, graphene attracted the attention of researchers all over the world. Among the many properties of graphene, its single-layer two-dimensional structure has extremely low heat capacity per unit area, high thermal conductivity, good optical transparency and high mechanical strength, so it is used in thermoacoustic devices. There are also good application prospects in electrode materials. Applying the thermoacoustic effect of graphene can make a graphene sounder. The thermoacoustic effect means that after the alternating current is applied to the film conductor, periodic heat waves will be generated, and the heat w...

AI Technical Summary

Problems solved by technology

However, most of the existing explorations on graphene thermoacoustic devices are directed at the graphene material itself, and there are few solutions to improve the structure of the sound-generating device to improve the output of the thermoacoustic effect.

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