Piezoelectric tunnel airflow generator

Abstract

The invention relates to a piezoelectric tunnel airflow generator, and belongs to the technical field of new energy. A support is composed of an upper beam, a lower beam, and a baffle connecting the upper beam and the lower beam. The upper beam and the lower beam are located on the same side of the baffle and are symmetrically arranged. Each shape limiting frame is composed of a beam and shape limiting blocks at the two ends of the beam, and arc shape limiting faces are arranged on the shape limiting blocks. The cross beams of the two shape limiting frames are connected through screws, the shape limiting surfaces are oppositely installed, two piezoelectric vibrators and an elastic sheet are connected between the two cross beams in a pressing mode, and the piezoelectric vibrators are located on the two sides of the elastic sheet; each piezoelectric vibrator is composed of a substrate and a piezoelectric plate bonded to one side of the substrate. One side of the substrate is in contact with the elastic sheet, the root of the other side of the substrate is in contact with the shape-limiting surface, and the piezoelectric sheet is not in contact with the shape-limiting surface; the shape limiting blocks at the two ends of the shape limiting frames are connected with the upper beam and the lower beam respectively, and the lug plate of bluff body is installed at the free end of the elastic piece and close to the baffle; and the symmetric center layer in the thickness direction of the elastic sheet, the center line of the bluff body and the symmetric center layer in the width direction of the baffle are positioned in the same vertical plane when not in work.

Description

technical field [0001] The invention belongs to the technical field of new energy, and in particular relates to a piezoelectric tunnel airflow generator. Background technique [0002] Tunnels have become an important part of the current road and rail network. In order to ensure that cars and trains can travel together normally and safely, and realize real-time monitoring of the tunnel environment and passing vehicles, various instruments and lighting facilities need to be installed in the tunnel, so there must also be corresponding power supply facilities in the tunnel. If the traditional cable is used for power supply, the cable laying and subsequent maintenance are more difficult and costly; if the battery is used for power supply, due to the limited life of the battery, it needs to be replaced frequently, which is extremely inconvenient to use, especially in remote mountainous areas. Contents of the invention [0003] The present invention proposes a piezoelectric tunn...

AI Technical Summary

Problems solved by technology

If the traditional cable is used for power supply, the cable laying and subsequent maintenance are more difficult and costly; if the battery is used for power supply, due to the limited life of the battery, it needs to be replaced frequently, which is extremely inconvenient to use, especially in remote mountainous areas

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