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Power generating speed bump based on leadless piezoelectric ceramics

A lead-free piezoelectric and speed bump technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve environmental and human harmful problems and reduce pollution Effects on toxicity, energy utilization, and high-voltage conversion efficiency

Inactive Publication Date: 2017-07-11
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, lead zirconate titanate (PZT) is a piezoelectric material commonly used in sensors and converters on the market, but it contains the toxic element lead, which is harmful to the environment and human body. Therefore, it is urgent to develop lead-free piezoelectric materials to replace lead-containing piezoelectric materials. Material

Method used

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  • Power generating speed bump based on leadless piezoelectric ceramics
  • Power generating speed bump based on leadless piezoelectric ceramics
  • Power generating speed bump based on leadless piezoelectric ceramics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A power-generating speed bump based on lead-free piezoelectric ceramics, including a speed bump body 1, a number of honeycomb holes 3 are provided on the lower side of the speed bump body 1, an insulating plate 4 is connected to the lower part of the speed bump body 1, and an insulating plate 4 is placed on the bottom of the speed bump body 1. A number of piezoelectric vibrators 2 are fixed, and the piezoelectric vibrators 2 are placed in the honeycomb holes 3, and the gap between the piezoelectric vibrators 2 and the honeycomb holes 3 is filled with rubber, and the electricity generated by the piezoelectric vibrators 2 is converted and output by the rectifier circuit .

[0042] The piezoelectric vibrator 2 is a lead-free piezoelectric ceramic material, and the molecular formula of the lead-free piezoelectric ceramic is Ba(Ti 0.8 Zr 0.2 )O 3 -x(Ba 0.7 Ca 0.3 )TiO 3 , where x=0.2, x is the mole fraction, and the preparation method is:

[0043] Step 1: Weigh the raw...

Embodiment 2

[0050] A power-generating speed bump based on lead-free piezoelectric ceramics, including a speed bump body 1, a number of honeycomb holes 3 are provided on the lower side of the speed bump body 1, an insulating plate 4 is connected to the lower part of the speed bump body 1, and an insulating plate 4 is placed on the bottom of the speed bump body 1. A number of piezoelectric vibrators 2 are fixed, and the piezoelectric vibrators 2 are placed in the honeycomb holes 3, and the gap between the piezoelectric vibrators 2 and the honeycomb holes 3 is filled with rubber, and the electricity generated by the piezoelectric vibrators 2 is converted and output by the rectifier circuit .

[0051] The piezoelectric vibrator 2 is a lead-free piezoelectric ceramic material, and the molecular formula of the lead-free piezoelectric ceramic is Ba(Ti 0.8 Zr 0.2 )O 3 -x(Ba 0.7 Ca 0.3 )TiO 3 , where x=0.8, x is the mole fraction, and the preparation method is:

[0052] Step 1: Weigh the raw...

Embodiment 3

[0059] A power-generating speed bump based on lead-free piezoelectric ceramics, including a speed bump body 1, a number of honeycomb holes 3 are provided on the lower side of the speed bump body 1, an insulating plate 4 is connected to the lower part of the speed bump body 1, and an insulating plate 4 is placed on the bottom of the speed bump body 1. A number of piezoelectric vibrators 2 are fixed, and the piezoelectric vibrators 2 are placed in the honeycomb holes 3, and the gap between the piezoelectric vibrators 2 and the honeycomb holes 3 is filled with rubber, and the electricity generated by the piezoelectric vibrators 2 is converted and output by the rectifier circuit .

[0060] The piezoelectric vibrator 2 is a lead-free piezoelectric ceramic material, and the molecular formula of the lead-free piezoelectric ceramic is Ba(Ti 0.8 Zr 0.2 )O 3 -x(Ba 0.7 Ca 0.3 )TiO 3 , where x=0.5, x is the mole fraction, and the preparation method is:

[0061] Step 1: Weigh the raw...

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Abstract

The invention discloses a power generating speed bump based on leadless piezoelectric ceramics. The power generating speed bump based on the leadless piezoelectric ceramics comprises a speed bump body; a plurality of honeycomb holes are formed in the lower side of the speed bump body; an insulating plate is connected with the lower part of the speed bump body; a plurality of piezoelectric vibrators are fixed on the insulating plate; the piezoelectric vibrators are placed in the honeycomb holes; and electric quantity generated by the piezoelectric vibrators is converted and output by a rectifying circuit. According to the power generating speed bump based on the leadless piezoelectric ceramics, the piezoelectric vibrators are made by using the leadless piezoelectric ceramics and charges generated by the piezoelectric vibrators are converted into direct current voltage by using the rectifying circuit to be output; therefore, the vibrating energy of an automobile during passing through the speed bump is converted into electric energy so as to satisfy daily power supply requirements of road traffic signal lights.

Description

technical field [0001] The invention belongs to the application field of electronic ceramic materials, and in particular relates to a power-generating speed bump based on lead-free piezoelectric ceramics. Background technique [0002] Energy and the environment are the two most important themes that human beings pay attention to in the 21st century. With the development of the economy, fossil energy resources such as coal and oil are decreasing due to continuous consumption. Countries all over the world are vigorously developing various renewable energy sources, hoping to collect and convert energy that can be recycled in the environment. On the one hand, people’s requirements for energy quality are constantly improving; on the other hand, people’s awareness of environmental protection is also increasing. In addition, a series of environmental problems caused by long-term use of fossil energy have become increasingly prominent. The research and development of clean, environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F9/529C04B35/49C04B35/622C04B41/88H02N2/18
CPCH02N2/186C04B35/49C04B35/622C04B41/52C04B41/88C04B2235/656C04B2235/6567C04B2235/3236C04B2235/3215C04B2235/3208C04B41/5116C04B41/0072
Inventor 高景晖胡兴好刘泳斌于钦学钟力生
Owner XI AN JIAOTONG UNIV
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