Combined-type magnetic suspension wideband vibration energy collector employing amplification structure

Abstract

The invention discloses a combined-type magnetic suspension wideband vibration energy collector employing an amplification structure. A rectangular frame (1) is designed, one end of a strip-shaped piezoelectric cantilever beam (2) is fixed on a vertical edge of the frame (1), and the upper surface of the other end of the strip-shaped piezoelectric cantilever beam (2) is fixedly provided with a magnetic suspension vibration energy collection module (5). The lower surface of the piezoelectric cantilever beam (2) is fixedly provided with a piezoelectric beam magnet (4). A horizontal edge of the frame below the piezoelectric beam magnet (4) is fixedly provided with a frame magnet (3), and the frame magnet (3) is opposite to the piezoelectric beam magnet (4), wherein there is an interval between the frame magnet (3) and the piezoelectric beam magnet (4). The magnetic suspension vibration energy collection module (5) is a cylinder which is made of a non-magnetic-conduction material. The upper part of the interior of the cylinder and the bottom of the cylinder are respectively provided with fixed magnets (5-1, 5-4) in a fixed manner, and a movable magnet (5-3) is configured between the two fixed magnets (5-1, 5-4). The outer wall of the cylinder is provided with two induction coils (5-2), and the movement of the movable magnet (5-3) in the cylinder can generate electricity in the induction coils (5-2) for output.

Description

technical field [0001] The invention relates to a device in the field of energy technology, in particular to a composite magnetic levitation broadband vibration energy harvester adopting an amplifying structure. Background technique [0002] Vibration is a ubiquitous phenomenon in the environment. It is widely present in various production and living equipment such as bridges, buildings, ships, vehicles, machine tools, household appliances (refrigerators, washing machines, microwave ovens), and also in the blood flow of the human body, the heart, etc. In life processes such as beating and limb movement. If the vibration in the environment is converted into electrical energy, it will have a very broad application prospect for powering low-power devices such as wireless networks and embedded systems. [0003] There are generally three types of vibration-based energy harvesting methods: electromagnetic, electrostatic, and piezoelectric. Among them, the electromagnetic vibrati...

AI Technical Summary

Problems solved by technology

Although the maglev electromagnetic vibration energy harvester has the advantages of high conversion efficiency, high sensitivity, and compact structure, it has disadvantages such as relatively narrow frequency band, low output power under low-level vibration, and low output voltage.

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