Noise-reducing electrotransformation device for central air-conditioning air supply pipe

A central air-conditioning and electric conversion technology, which is applied to electrical components, generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve problems such as noise pollution and large energy consumption, and achieve reduction Noise, effect of increasing spectral width

Inactive Publication Date: 2015-11-11
WUHAN UNIV OF TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a central air-conditioning air supply pipe noise reduction electrical conversion device, w

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  • Noise-reducing electrotransformation device for central air-conditioning air supply pipe
  • Noise-reducing electrotransformation device for central air-conditioning air supply pipe
  • Noise-reducing electrotransformation device for central air-conditioning air supply pipe

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Embodiment Construction

[0014] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0015] Example: such as figure 1 and 2 As shown, the central air-conditioning air supply pipe noise reduction electric conversion device of this embodiment includes a noise absorption unit, an audio frequency tracking unit and an acoustic-electric conversion unit, the above-mentioned noise absorption unit is connected to the audio-frequency tracking unit, and the above-mentioned acoustic-electric conversion unit is arranged In the tracking unit, the above-mentioned sound-to-electric conversion unit is externally connected to a voltage output circuit, and the above-mentioned audio-frequency tracking unit is installed on the outer wall of the air supply pipe of the central air conditioner.

[0016] The audio tracking...

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Abstract

The invention relates to the field of noise control and utilization, particularly to a noise-reducing electrotransformation device for a central air-conditioning air supply pipe. The noise-reducing electrotransformation device for the central air-conditioning air supply pipe provided by the invention comprises a noise absorption unit, an audio frequency tracking unit and an acoustoelectric transformation unit, wherein the noise absorption unit is connected with the audio frequency tracking unit; the acoustoelectric transformation unit is arranged in the audio frequency tracking unit, and is externally connected with a voltage output circuit; and the audio frequency tracking unit is arranged on the outer wall of the central air-conditioning air supply pipe. The noise-reducing electrotransformation device has the advantages that by the resonance characteristics of a helmholtz resonator, noise energy of an air pipe is transformed into electric energy through piezoelectric ceramics, so that the noise of the air-conditioning air pipe is reduced; the electric energy is also generated; and in addition, the spectrum width of available noise can be increased by the audio frequency tracking unit.

Description

technical field [0001] The invention relates to the field of noise control and utilization, in particular to an electric conversion device for noise reduction of a central air-conditioning air supply pipe. Background technique [0002] When the central air conditioner is working, the air supply pipeline will generate a certain amount of noise, which affects people's life and work. This device automatically changes the length of the neck of the Helmholtz resonator by detecting the relatively concentrated noise frequency band in the environmental noise, so as to change the natural frequency of the Helmholtz resonator, so that the neck of the cavity resonates, and the piezoelectric ceramic Chips generate a higher voltage and output in series. The device can well reduce the noise of the air duct, and can even convert the noise energy into electric energy and utilize it. Contents of the invention [0003] The technical problem to be solved by the present invention is to provi...

Claims

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Application Information

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IPC IPC(8): H02N2/18
Inventor 程鹏何勇刘聪聪
Owner WUHAN UNIV OF TECH
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