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A road-use piezoelectric generator based on the d15 transduction mode

A piezoelectric power generation, d15 technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of low power conversion efficiency and improve service life , high voltage and power, avoiding the effect of direct influence

Active Publication Date: 2019-01-11
CHANGAN UNIV
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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a 15 The road-use piezoelectric power generation device in the energy conversion mode solves the technical problem of low power-to-electricity conversion efficiency of the existing piezoelectric power generation device

Method used

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  • A road-use piezoelectric generator based on the d15 transduction mode
  • A road-use piezoelectric generator based on the d15 transduction mode
  • A road-use piezoelectric generator based on the d15 transduction mode

Examples

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Embodiment 1

[0054] This example presents a method based on d 15 Piezoelectric generators for road use in transducer mode, such as figure 1 As shown in Figure 4, it includes a rigid shell 1 and a pressure-bearing cover plate 2 covered on the rigid shell 1. The rigid shell can ensure that the device as a whole has a good load-bearing capacity; the rigid shell 1 is also installed There are force transmission mechanism 3 and based on d 15 Piezoelectric transducer mechanism 4 in transducer mode;

[0055] The force transmission mechanism 3 can convert the axial load applied on the pressure-bearing cover plate 1 into a radial load and transmit it to the 15 Piezoelectric transducer mechanism 4 in transducer mode;

[0056] said based on d 15 The piezoelectric transducing mechanism 4 in the transducing mode includes a plurality of piezoelectric transducing chambers 5 fixed on the side wall of the rigid shell 1, and the plurality of piezoelectric transducing compartments 5 are in the radial shap...

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Abstract

The invention relates to the field of road engineering, and provides a road piezoelectric power generation device based on a d15 transduction mode. The road piezoelectric power generation device includes a rigid shell and a pressure bearing cover plate covering the rigid shell. The rigid shell is internally equipped with a force transfer mechanism and a piezoelectric transducer mechanism based ona d15 transduction mode. The force transfer mechanism can convert an axial load applied to the pressure bearing cover plate into a radial load and transfer the radial load to the piezoelectric transducer mechanism based on a d15 transduction mode. The road piezoelectric power generation device adopts a piezoelectric energy harvesting unit based on a d15 force-electricity conversion mode of a positive piezoelectric effect. The efficiency of piezoelectric ceramic force-electricity conversion under a d15 transduction mode is higher than that under d33 and d31 modes. The d15 polarization and excitation characteristics of the shearing piezoelectric constant of piezoelectric ceramic are fully utilized. The force-electricity conversion efficiency of the piezoelectric energy harvesting unit is improved from the source. The effectiveness of the piezoelectric power generation device is maximized. The technical problem that the existing piezoelectric power generation device has low force-electricity conversion efficiency is solved.

Description

technical field [0001] The invention belongs to the field of road engineering, relates to piezoelectric energy conversion technology, in particular to a d-based 15 Piezoelectric power generation device for road use in transducer mode. Background technique [0002] my country's road network is becoming more and more developed, and roads bear more and more vehicle loads. The constant impact and vibration of the vehicle load will generate a steady stream of mechanical energy. The road surface piezoelectric energy conversion technology uses the wheel load pressure on the road surface during the driving process of the vehicle, which is transmitted to the transducer, and the transducer performs force-electric conversion and outputs the generated electric energy. If the piezoelectric energy conversion technology can be fully utilized to effectively collect and convert mechanical energy into electrical energy, it will be used as another clean energy in addition to solar energy, wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/186
Inventor 王朝辉宋志张璐高志伟李彦伟王帅赵建雄
Owner CHANGAN UNIV
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