Road surface energy collection system

An energy harvesting and piezoelectric energy harvesting technology, which is applied in the improvement field of road energy harvesting system, can solve the problems of high natural frequency, unsuitable low frequency bandwidth collection, narrow frequency band, etc., to increase energy collection time, improve low frequency broadband stochastic resonance, etc. Features, the effect of improving the energy harvesting effect

Inactive Publication Date: 2014-11-19
SUZHOU VOCATIONAL UNIV
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Problems solved by technology

However, due to its high natural frequency and narrow frequency band, it is considered unsuitable for the collection of low-frequency bandwidth and large-stress vibration energy like road surfaces.

Method used

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  • Road surface energy collection system
  • Road surface energy collection system
  • Road surface energy collection system

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] attached Figure 1-6 The road surface energy harvesting system according to the present invention comprises a plurality of road surface energy harvesting devices; the multiple road surface energy harvesting devices are connected in series or in parallel; then sequentially connected with a rectifier circuit and a filter circuit; the electric energy obtained by the road surface energy harvesting devices After the signal is rectified and stabilized, it can be stored or directly applied to the end user; the road surface energy harvesting device includes a box body 1, a sealing ring 2, a pressure plate 3, an array cantilever beam piezoelectric energy harvester 4, and a vibrating block 5; the vibrating block 5 is arranged in the middle of the box body 1; a compression spring 6 is arranged between the vibrating block 5 and the bottom ...

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Abstract

The invention discloses a road surface energy collection system, comprising multiple road surface energy collection devices connected in series or in parallel. Then the multiple road surface energy collection devices are connected with a rectification circuit and a filter circuit. Each road surface energy collection device comprises a casing, a sealing ring, a pressure plate, array cantilever beam piezoelectric energy accumulators and a vibration block. The vibration block is arranged in the middle of the casing. A pressure spring is arranged between the vibration block and the bottom of the casing. The array cantilever beam piezoelectric energy accumulators are arranged on the vibration block in pair. Each array cantilever beam piezoelectric energy accumulator comprises a cantilever beam; the cantilever beam is provided with a piezoelectric layer; a tail end of the cantilever beam is provided with a first permanent magnet; an inner wall of the casing, corresponding to the first permanent magnet, is provided with a second permanent magnet; and adjacent ends of the first and second permanent magnet are identical in polarity. The lower surface of the pressure plate presses the upper end of the vibration block. The road surface energy collection system is suitable for road surface engineering installation and has a good characteristic of low-frequency broadband stochastic resonance.

Description

technical field [0001] The invention relates to an improvement of a pavement energy collection system, in particular to a road surface energy collection system suitable for pavement road engineering installation and having better low-frequency broadband stochastic resonance characteristics. Background technique [0002] With the increase of the number of vehicles, its impact on the road environment is getting bigger and bigger. Driving vehicles inevitably bring pressure and impact to the road surface, causing vertical and horizontal strain and stress inside the road surface, and the energy generated not only produces vibration and noise, but also seriously affects the life of the road surface and the surrounding environment. In order to recover this energy, some energy harvesting devices have been developed. Among them, the piezoelectric power generation device developed by using the positive piezoelectric effect of piezoelectric materials has outstanding advantages such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02J7/32
Inventor 孙春华尚广庆杜建红刘杰
Owner SUZHOU VOCATIONAL UNIV
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