Vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation

A vibration energy recovery and self-adaptive adjustment technology, which is applied to electromechanical devices, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc. Effective recovery of vibration energy and other issues, to achieve the effect of high energy recovery per unit volume

Inactive Publication Date: 2014-10-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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AI Technical Summary

Problems solved by technology

This type of vibration energy recovery device can simply realize broadband vibration energy recovery. However, in the process of working in a vibration environment within this frequency range, only one or a few of the vibration pickup structur

Method used

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  • Vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation
  • Vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation
  • Vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation

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Embodiment Construction

[0016] The present invention will be further explained below in conjunction with the drawings.

[0017] Such as figure 1 Shown is a vibration energy recovery device with adaptive adjustment function of ultrasonic piezoelectric actuation, including a base 5, a coil support 4, a dovetail guide 6, a driver support 8 and a vertical plate 10 respectively fixed on the base 5 The corresponding position of the cantilever beam support slider 9, the cantilever beam 1, the permanent magnet array 2, the coil winding 3 and the ultrasonic vibration driver 7; the coil winding 3 is embedded in the coil support 4; the cantilever beam supports the bottom of the slider 9 The sliding block at the end is installed in the dovetail groove guide rail 6. Grease is used to lubricate the contact surface between the dovetail groove guide rail 6 and the cantilever beam support slider 9, so that the cantilever beam support slider 9 can slide freely on the dovetail groove guide rail 6; the cantilever beam 1 wea...

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Abstract

The invention discloses a vibration energy recovery device having function of self-adaptive control on ultrasound piezoelectric actuation. The vibration energy recovery device comprises a vibration energy recovery device and an ultrasound vibration driver, wherein the vibration energy recovery device comprises a cantilever beam, a dovetail groove guide rail and a cantilever beam support sliding block, a sliding block at the bottom end of the cantilever beam support sliding block is arranged in the dovetail groove guide rail, the tail end of the cantilever beam is fixed, the front end of the cantilever beam passes through a cantilever beam guide support groove at the upper end of the cantilever beam support sliding block, and the ultrasound vibration driver adopts an improved Langevin vibrator structure, and is arranged on the a driver support and used for adjusting a friction driving block to be in contact with the side wall of the cantilever beam support sliding block. By the device provided by the invention, resonant frequency of a single vibration pick-up structure can be changed, so that the device can be applicable for different environmental vibration frequencies, the vibration energy recovery device can recover broadband vibration energy by the single vibration pick-up structure, and energy recovery power per unit volume is improved.

Description

Technical field [0001] The present invention relates to environmental vibration energy recovery technology, in particular to a vibration energy recovery device capable of real-time adjustment of the natural frequency of a vibration pickup system according to the environmental vibration frequency. Background technique [0002] Environmental vibration energy is ubiquitous. Compared with solar energy, wind energy, geothermal energy, etc., it has the outstanding advantages of being more extensive and not subject to time and geographical restrictions. It is a pollution-free and renewable clean energy. At present, new technologies such as sensor networks and low-power circuits are developing rapidly. Converting vibration energy into electrical energy to supply power to these low-power sensor network nodes can solve battery life problems in battery power supply and inconvenient wiring in power line power supply. The question is therefore of great significance. The principles of known e...

Claims

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Application Information

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IPC IPC(8): H02K35/02H02N2/04
Inventor 陈仁文任龙夏桦康丁志强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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