Piezoelectric-electromagnetic hybrid fluid energy capture device

Abstract

The invention relates to a piezoelectric-electromagnetic hybrid fluid energy capture device and belongs to the technical field of power generation. The end portion of a side wall of a housing is provided with an end cover; the inner side of a bottom wall of the housing is embedded with coils, and the outer side is provided with upper and lower ear plates; and guide pillars are arranged between the upper and lower ear plates. A bluff body is formed by a cylinder body, a protrusion and side plates. The side plates of the bluff body are sleeved on the guide pillars and the upper and lower sides are respectively compressed by a pressure spring; and the protrusion of the bluff body is equipped with a magnetic bar. A framework bottom plate provided with ear plates is arranged on the end cover. An exciter comprises upper and lower planes, left and right arc surfaces, a groove, a protrusion, a shaft hole and a pin hole. The groove and the pin hole are arranged in one side of the left arc surface; and the protrusion equipped with a magnetic block is arranged on one side of the right arc surface. The exciter is sleeved on a rotation shaft. The rotation shaft is arranged on the framework ear plates. A long pin is arranged on the framework ear plates. Each of the two ends of a short pin is arranged in the pin hole of exciter. The two ends of a tension spring are connected to the long pin and the short pin respectively. The two sides of the framework bottom plate are respectively provided with an energy transducer. The energy transducer is formed by a substrate and a piezoelectric film, which are glued together. The substrate is arranged close to the framework bottom plate. The free end of each energy transducer is abutted against the upper plane or the lower plane of the exciter.

Description

technical field [0001] The invention belongs to the field of power generation, and in particular relates to a piezoelectric-electromagnetic hybrid fluid energy harvester for powering a river monitoring system. Background technique [0002] There are thousands of rivers all over the territory of our country. In recent years, due to insufficient treatment of industrial wastewater, soil erosion, and improper use of pesticides and fertilizers, most rivers have been polluted to a certain extent. Nearly 1 / 4 of the rivers or river sections cannot meet basic irrigation due to pollution. need. In addition, because the current flood control facilities for small and medium-sized rivers in many areas are not perfect, or even do not have any flood control facilities, when the flood season comes, it may cause dangers such as embankment failure or flooding, directly threatening the lives and property safety of people along the coast. Therefore, river monitoring has been highly valued by ...

AI Technical Summary

Problems solved by technology

Although some of the monitoring methods proposed at present are relatively mature in technology, they have not been popularized and applied. One of the main reasons is that the power supply problem of the monitoring system has not been well resolved.

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