Cantilever lever piezoelectric generating component

Abstract

The invention discloses a cantilever lever piezoelectric generating component which comprises a piezoelectric generating plate, an auxiliary supporting component and an elastic lever, wherein the piezoelectric generating plate comprises a copper polar plate (2) as well as a square A piezoelectric ceramic piece (1) and a B piezoelectric ceramic piece (3) which are bonded on upper and lower surfaces of the copper polar plate (2); the auxiliary supporting component comprises an A supporting plate (10), a B supporting plate (9), an upper press plate (8) and a connecting piece (7); and the elastic lever comprises a T-shaped elastic rod (5), a driving press block (6) arranged at the upper side of the T-shaped elastic rod (5) and close to the upper press plate (8), and a driven press block (4) arranged at the end part of the lower side of the T-shaped elastic rod (5). The A supporting plate (10), copper polar plate (2), the B supporting plate (9), the T-shaped elastic rod (5) and the upper press plate (8) are sequentially arranged from bottom to top, and the connecting piece (7) penetrates through connecting holes of all the parts and then connects the parts into a whole body.

Description

technical field [0001] The invention relates to an energy recovery device utilizing the positive piezoelectric effect of a piezoelectric ceramic material, in particular to a cantilever lever type piezoelectric power generation assembly. Background technique [0002] With the increasing shortage of energy and the increasing awareness of people's environmental protection, issues such as energy conservation and environmental protection, as well as the development and utilization of environmentally friendly and non-polluting new energy have attracted much attention and attention from all over the world. The device that utilizes piezoelectric ceramic positive piezoelectric effect to generate electricity has become a focus of attention of researchers all over the world because of its advantages of environmental protection and energy saving, simple structure, no electromagnetic interference, easy implementation, and low cost. Utilizing the kinetic energy of the human body for piezo...

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Problems solved by technology

[0004] In order to improve the benefits of existing piezoelectric power generation using the kinetic energy of the human body, the patent document with the publication number CN201956927U discloses a piezoelectric power generation device that uses the human body to frequently step on it. The device uses the human body to step on the spring lever mechanism to form the potential energy of spring deformation. , and then release the spring deformation potential energy to knock the piezoelectric material to generate piezoelectric electricity. The device has a simple structure, low cost, and concentrated power generation. However, it is found in the experiment that the device has certain shortcomings. The speed is relatively slow, and the percussion force formed on the piezoelectric ceramic material after the spring deformation potential energy is released is very small, which affects the power generation conversion efficiency of the piezoelectric ceramic sheet. In addition, the human body tramples on the stroke greater than 2mm, and there is discomfort such as stepping on the air.

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