Piezoelectric multi-direction vibration energy acquisition device

A vibration energy collection, multi-directional technology, applied in circuit devices, battery circuit devices, electric vehicles, etc., can solve the problems of high natural frequency, large-amplitude vibration damage, inability to collect multi-directional vibration energy, etc., to achieve high energy efficiency, The effect of high reliability and high reliability

Pending Publication Date: 2018-03-06
ANHUI UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The invention provides a piezoelectric multi-directional vibration energy collection device to solve the problems of high natural frequency, lar

Method used

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  • Piezoelectric multi-direction vibration energy acquisition device
  • Piezoelectric multi-direction vibration energy acquisition device
  • Piezoelectric multi-direction vibration energy acquisition device

Examples

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Embodiment Construction

[0011] The embodiment that the present invention adopts is: frame 1 top surface is installed with top board 2 by screw, each side is installed with side board 8 by screw, bottom surface is installed on the base 11 by screw; Top inertia block 6, each side plate 8 inner sides are connected with peripheral inertia block 10 by peripheral buffer spring 9, and base 11 is connected with bottom inertia block 14 by bottom buffer spring 15; Described top inertia block 6, peripheral inertia block 10, bottom inertia block A group of piezoelectric vibrators 3 are respectively fixed around the block 14, and the inner sides of the top inertial block 6, the peripheral inertial block 10, and the bottom inertial block 14 are respectively connected with the central mass block 7 through the top spring 5, the peripheral spring 16, and the bottom spring 15; The group of piezoelectric vibrators 3 is formed by bonding metal substrates 301 and piezoelectric wafers 302. Each group of piezoelectric vibra...

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Abstract

The invention relates to a piezoelectric multi-direction vibration energy acquisition device, and belongs to the technical field of new energy and power generation. A frame is arranged on a base via abolt, a side plate is arranged on each surface via a bolt, an inertia block is connected with each side plate via a buffer spring, a piezoelectric oscillator group is fixedly at the periphery of eachinertia block, each inertia block is connected with a central mass block via a spring, the piezoelectric oscillator group is formed by pasting a metal substrate and a piezoelectric chip, each piezoelectric oscillator group is connected in parallel via a wire, parallel connection means that each metal substrate is connected via a wire and each piezoelectric hip is connected via a wire, a rectification circuit and an energy storage device are fixedly arranged on the base, and the rectification circuit is connected with the piezoelectric oscillator and the energy storage device via a wire. The piezoelectric multi-direction vibration energy acquisition device has the advantages that low-frequency vibration energy can be achieved in an arbitrary direction, and the piezoelectric multi-directionvibration energy acquisition device has the characteristics of high reliability and high energy efficiency.

Description

technical field [0001] The invention belongs to the technical field of new energy and power generation, and specifically relates to a piezoelectric multi-directional vibration energy collection device, which is used for low-frequency, large-amplitude, multi-directional vibration energy collection. Background technique [0002] Aiming at the current power supply problems of portable micro-power electronic products and remote implanted sensor monitoring systems, as well as the pollution of the environment by a large number of discarded batteries and the waste of resources caused by production batteries, the successful development and utilization of piezoelectric vibration energy harvesting devices have greatly solved the problem. these questions. Due to the different characteristics of environmental vibration and application purposes, many types of piezoelectric energy harvesting devices have been proposed at home and abroad. However, since piezoelectric ceramics are brittle ...

Claims

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Application Information

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IPC IPC(8): H02N2/18H02J7/32
CPCH02J7/32H02N2/186
Inventor 刘坤李保坤刘向阳吴耀东
Owner ANHUI UNIV OF SCI & TECH
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