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Rolling stock rail vibration energy piezoelectric power generating method and system thereof

A vibration energy, piezoelectric power generation technology, used in rails, piezoelectric/electrostrictive/magnetostrictive devices, vehicle components, etc. Effect

Inactive Publication Date: 2007-09-05
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical systems are prone to wear and tear from the pressure driving the car down and the pressure driving it up when resetting

Method used

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  • Rolling stock rail vibration energy piezoelectric power generating method and system thereof
  • Rolling stock rail vibration energy piezoelectric power generating method and system thereof
  • Rolling stock rail vibration energy piezoelectric power generating method and system thereof

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Experimental program
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Embodiment Construction

[0055] Referring to Figures 1-7, according to the technical solution of the present invention, the technical route of the first embodiment is: for a steel spring supporting a floating plate track, a piezoelectric device is inserted under the supporting steel spring of the floating plate. Connect in series, as shown in Figure 2. In Figure 2, the layers from the top to the bottom are the steel rail 1, the floating plate 2, the steel spring 3, the piezoelectric device 4 and the roadbed 5 in sequence.

[0056] Fig. 3 shows the structure of the piezoelectric device in the first embodiment. The device consists of an outer piston 34, an inner piston 32, a hydraulic cylinder 33 and a piezoelectric stack 31. The outer piston 34 and the hydraulic cylinder 33 are directly affected by the vibration of the rail vehicle. The outer piston 34 moves relative to the hydraulic cylinder 33 to produce pressure changes, which are transmitted to the inner piston 32 through the oil hydraulic pressure. Si...

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PUM

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Abstract

The present invention discloses piezoelectric electricity generating method and system utilizing vibration energy of vehicle track. Piezoelectric device is set in the vibration reducing layer of track, so that the vibration energy is utilized to generate electricity for storage and use. The piezoelectric electricity generating system includes at least one piezoelectric device set in the vibration reducing layer of track to convert the vibration energy into electric energy; one electric converter to regulate and convert the generated electric energy for accumulation or driving load; and one energy accumulator connected together. The present invention utilizes the vibration energy of vehicle track and may produce semi-active vibration reducing and noise lowering effect.

Description

Technical field [0001] The invention relates to a method and a system for generating power on a vehicle track, in particular to a method and a system for generating vibration energy of a vehicle track by piezoelectric power. Background technique [0002] The energy sources that can be used to generate electricity usually include wind, water, solar, nuclear, and steam. With the continuous requirements for energy efficiency and preservation, people have spent a lot of effort to develop new energy sources that have not been used. People have developed a number of systems and methods to utilize the energy that their wheels bring to the road or track when vehicles are moving. [0003] These systems can generally be divided into mechanical systems, pneumatic systems and hydraulic systems. [0004] A typical mechanical system that uses the downward force of a vehicle to generate electricity includes a gear mechanism and other moving parts. The mechanical system is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02M3/10H01L41/113F03G7/08H10N30/30E01F11/00
CPCF03G7/08H02N2/186E01B26/00F05B2220/709E01F11/00
Inventor 曹秉刚左贺王丽张政
Owner XI AN JIAOTONG UNIV